The subject matter of this specification can be embodied in, among other things, method for testing operation of a thrust reverser actuator lock includes determining, by a controller, that an actuator output of a controllable actuator is at a predetermined first position, locking, by the controller, an actuator lock configured to prevent movement of the actuator output of an actuator away from the predetermined first position, initiating, by the controller, actuation of the actuator output away from the predetermined first position, determining, by the controller based on a position feedback sensor, a second position of the actuator output, determining, by the controller, a nominal condition of the actuator lock based on determining that the second position is within a predetermined threshold distance from the predetermined first position of the actuator output, and providing, by the controller and based on the determined nominal condition, a signal indicative of the nominal condition.
Methods and systems for a lock assembly for a linear actuator. The lock assembly includes a ball nut having one or more rows of lock protrusions extending axially from an external circumference of the ball nut. A lock rotor encircles the ball nut, the lock rotor having a row of ridge protrusions extending axially inward from an internal circumference. In a lock position, the ridge protrusions are arranged between locking protrusions. In an unlocked position, the ridge protrusions are arranged between adjacent locking protrusions.
A flame arrestor screw for a solenoid operated gas admission valve. The flame arrestor screw may include a screw body having a first end and an open end. The flame arrestor screw may include a gas passage extending from the open end along a longitudinal axis of the screw body and terminating at a terminal end within the screw body. A through hole may extend through the screw body transverse to the gas passage and in fluid communication with the gas passage.
A62C 4/02 - Pièges à flammes permettant le passage du gaz et non pas celui de la flamme ou de l'onde détonante dans les conduites de gaz
F16K 17/36 - Soupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage fonctionnant sous l'action de circonstances extérieures, p. ex. un choc, un changement de position
G01M 3/04 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite
4.
Sensor System Emulating Variable Differential Transformer
Embodiments of the present disclosure relate to a system including a controller, a position sensor, and an emulator circuit. The controller is configured to output an AC excitation signal and receive a first AC response signal and a second AC response signal. The controller is configured to determine a position of an effector based on the first AC response signal and the second AC response signal. The position sensor is configured to be connected to the effector, and the position sensor is configured to output a position signal based on the position of the effector. The emulator circuit is configured to modulate the amplitude and frequency of the position signal based on the AC excitation signal to produce the first AC response signal and the second AC response signal.
Methods and systems for a variable differential transformer (VDT) system. The VDT system includes a primary coil to receive a power input, the primary coil balanced on opposing sides by two secondary coils. In response to movement of the core assembly, the secondary coils generate an induced voltage based on a voltage in the primary coil. A control system for measuring an output of the VDT includes a summing circuit to receive an output from two secondary coils. For instance, each of the two secondary coils generate an induced voltage in response changes in position of the core assembly relative to the primary coil and the two secondary coils. A voltage offset circuit adds a voltage offset value to a summing circuit output, which is transmitted to a single rail bias op-amp rectifier circuit.
H01F 29/10 - Transformateurs ou inductances variables non couverts par le groupe avec noyau, bobine, enroulement ou écran mobile pour compenser une variation de tension ou un déphasage, p. ex. régulateurs d'induction avec parties du circuit magnétique mobiles
G01D 5/22 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension en faisant varier l'inductance, p. ex. une armature mobile influençant deux bobines par une action différentielle
Methods and systems for a variable differential transformer (VDT) system. The VDT system includes a primary coil to receive a power input, the primary coil balanced on opposing sides by two secondary coils. In response to movement of the core assembly, the secondary coils generate an induced voltage based on a voltage in the primary coil. A control system for measuring an output of the VDT includes a summing circuit to receive an output from two secondary coils. For instance, each of the two secondary coils generate an induced voltage in response changes in position of the core assembly relative to the primary coil and the two secondary coils. A voltage offset circuit adds a voltage offset value to a summing circuit output, which is transmitted to a single rail bias op-amp rectifier circuit.
G01D 5/22 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension en faisant varier l'inductance, p. ex. une armature mobile influençant deux bobines par une action différentielle
An actuator for a control surface is provided. The actuator includes a frame, an electric motor, an epicyclic gear, a power-off brake, a power-on brake, and a unidirectional bearing. A sun gear is operably coupled to an output of the motor. A carrier is couplable to the control surface such that rotation of the carrier in a first direction transitions the control surface toward the deployed position and rotation of the carrier in a second direction transitions the control surface toward the stowed position. The power-off brake couples to the sun gear to ground the sun gear when deenergized. The power-on brake couples to the ring gear to ground the ring gear when energized. When the power-on brake is deenergized, the unidirectional bearing permits the ring gear to rotate in the second direction and prevents the ring gear from rotating in the first direction.
F16H 3/54 - Transmissions ayant uniquement deux engrenages centraux reliés par des engrenages à mouvement orbital avec engrenages orbitaux uniques ou paires d'engrenages orbitaux rigidement liés comprenant des engrenages orbitaux droits un des engrenages centraux étant denté intérieurement et l'autre denté extérieurement
B64C 13/34 - Dispositifs de transmission sans amplification de puissance ou dans les cas où l'amplification de puissance est sans objet mécaniques utilisant des engrenages
F16H 61/12 - Détection d'un dysfonctionnement ou d'un dysfonctionnement potentiel, p. ex. dispositif de sécurité positive
An actuator for a control surface is provided. The actuator includes a frame, an electric motor, an epicyclic gear, a power-off brake, a power-on brake, and a unidirectional bearing. A sun gear is operably coupled to an output of the motor. A carrier is couplable to the control surface such that rotation of the carrier in a first direction transitions the control surface toward the deployed position and rotation of the carrier in a second direction transitions the control surface toward the stowed position. The power-off brake couples to the sun gear to ground the sun gear when deenergized. The power-on brake couples to the ring gear to ground the ring gear when energized. When the power-on brake is deenergized, the unidirectional bearing permits the ring gear to rotate in the second direction and prevents the ring gear from rotating in the first direction.
A system and method of providing prime reliability of a primary fuel manifold upon failure of a primary fuel metering system by providing metered fuel from a secondary fuel metering system are provided. The system utilizes a transfer electro-hydraulic servo valve (EHSV), a discharge select valve (DSV) coupled to the EHSV, and a pair of throttling valves positioned between secondary fuel metering system and the primary and secondary fuel manifolds. The DSV has a multi-land piston that switches a control pressure and a shutoff pressure between the pair of throttling valves to transfer the supply of metered fuel of the secondary fuel metering system from the secondary fuel manifold to the primary fuel manifold. The output pressurizing valve of the failed primary fuel metering system is also closed to isolate the failed primary fuel metering system from the primary fuel manifold.
The subject matter of this specification can be embodied in, among other things, method for testing operation of a thrust reverser actuator lock includes determining, by a controller, that an actuator output of a controllable actuator is at a predetermined first position, locking, by the controller, an actuator lock configured to prevent movement of the actuator output of an actuator away from the predetermined first position, initiating, by the controller, actuation of the actuator output away from the predetermined first position, determining, by the controller based on a position feedback sensor, a second position of the actuator output, determining, by the controller, a nominal condition of the actuator lock based on determining that the second position is within a predetermined threshold distance from the predetermined first position of the actuator output, and providing, by the controller and based on the determined nominal condition, a signal indicative of the nominal condition.
The subject matter of this specification can be embodied in, among other things, a flow control valve that includes a gate element formed as a spherical segment having a semispherical peripheral edge, a substantially planar face bounded by a substantially elliptical edge at the semispherical peripheral edge, and a channel defined in the substantially planar face and having a first end proximal to a midpoint of the substantially planar face and extends from the first end to a second end defining a notch in the semispherical peripheral edge.
F16K 1/22 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation à éléments de fermeture articulés à pivot comportant disque ou volet pivotant dont l'axe de rotation traverse le corps de soupape, p. ex. régulateurs à papillon
A flow control valve that includes a gate element (100) formed as a spherical segment having a semispherical peripheral edge (1), a substantially planar face (114) bounded by a substantially elliptical edge at the semispherical peripheral edge (117), and a channel (120) defined in the substantially planar face and having a first end (122) proximal to a midpoint of the substantially planar face and extends from the first end to a second end (124) defining a notch in the semispherical peripheral edge.
F16K 1/22 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation à éléments de fermeture articulés à pivot comportant disque ou volet pivotant dont l'axe de rotation traverse le corps de soupape, p. ex. régulateurs à papillon
F16K 1/54 - Dispositifs pour modifier la façon dont le débit varie pendant le fonctionnement de la soupape
The subject matter of this specification can be embodied in, among other things, a rotary actuator having a housing with a first mounting assembly, a first mounting bracket adapted for attachment to the first mounting assembly and attachment to a first external mounting connector of a first mounting surface, a second mounting bracket adapted for attachment to the first mounting assembly and attachment to the first external mounting connector, a rotor assembly rotatably journaled in said housing and having a rotary output shaft having a second mounting assembly, a third mounting bracket adapted for attachment to the rotary output shaft and adapted for attachment to a second external mounting connector of a second mounting surface, and a fourth mounting bracket adapted for attachment to the rotary output shaft and adapted for attachment to the second external mounting connector.
F15B 15/08 - Dispositifs actionnés par fluides pour déplacer un organe d'une position à une autreTransmission associée à ces dispositifs caractérisés par la structure de l'ensemble moteur
The subject matter of this specification can be embodied in, among other things, a rotary actuator having a housing with a first mounting assembly, a first mounting bracket adapted for attachment to the first mounting assembly and attachment to a first external mounting connector of a first mounting surface, a second mounting bracket adapted for attachment to the first mounting assembly and attachment to the first external mounting connector, a rotor assembly rotatably journaled in said housing and having a rotary output shaft having a second mounting assembly, a third mounting bracket adapted for attachment to the rotary output shaft and adapted for attachment to a second external mounting connector of a second mounting surface, and a fourth mounting bracket adapted for attachment to the rotary output shaft and adapted for attachment to the second external mounting connector.
F15B 15/06 - Schéma mécanique de montage caractérisé par les moyens transformant le mouvement de l'élément entraîné par le fluide en mouvement de l'organe terminal qui est actionné pour la transformation mécanique d'un mouvement rectiligne en un mouvement non rectiligne
F15B 15/12 - Dispositifs actionnés par fluides pour déplacer un organe d'une position à une autreTransmission associée à ces dispositifs caractérisés par la structure de l'ensemble moteur le moteur étant du type à clapet oscillant ou à cylindre incurvé
B64C 13/40 - Dispositifs de transmission avec amplification de puissance utilisant la pression d'un fluide
H02K 7/00 - Dispositions pour la mise en œuvre d'énergie mécanique associées structurellement aux machines dynamo-électriques, p. ex. association structurelle avec des moteurs mécaniques d'entraînement ou des machines dynamo-électriques auxiliaires
F15B 15/14 - Dispositifs actionnés par fluides pour déplacer un organe d'une position à une autreTransmission associée à ces dispositifs caractérisés par la structure de l'ensemble moteur le moteur étant du type à cylindre droit
The subject matter of this specification can be embodied in, among other things, a heat exchanger apparatus that includes a first fluid conduit defining a first fluid flow path for a first fluid and comprising a fluid diode that is at least partly fluidically diodic and formed of a thermally conductive material, the fluid diode having a first fluid inlet, a first fluid outlet, a first sub-conduit extending from the fluid inlet to the fluid outlet, and a second sub-conduit extending from the first sub-conduit proximal the fluid inlet to the first sub-conduit proximal the fluid outlet as a partial loop defining a cavity extending through the partial loop, and a second fluid conduit in thermal communication with the first fluid conduit and defining a second fluid flow path through the partial loop, fluidically isolated from the first fluid flow path, for a second fluid.
F02M 26/29 - Détails structurels des refroidisseurs, p. ex. tuyaux, plaques, nervures, isolant ou matériaux
F28D 7/10 - Appareils échangeurs de chaleur comportant des ensembles de canalisations tubulaires fixes pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation les canalisations étant disposées l'une dans l'autre, p. ex. concentriquement
F28F 1/02 - Éléments tubulaires de section transversale non circulaire
The subject matter of this specification can be embodied in, among other things, a heat exchanger apparatus that includes a first fluid conduit defining a first fluid flow path for a first fluid and comprising a fluid diode that is at least partly fluidically diodic and formed of a thermally conductive material, the fluid diode having a first fluid inlet, a first fluid outlet, a first sub-conduit extending from the fluid inlet to the fluid outlet, and a second sub-conduit extending from the first sub-conduit proximal the fluid inlet to the first sub-conduit proximal the fluid outlet as a partial loop defining a cavity extending through the partial loop, and a second fluid conduit in thermal communication with the first fluid conduit and defining a second fluid flow path through the partial loop, fluidically isolated from the first fluid flow path, for a second fluid.
The present disclosure involves systems, software, and computer implemented methods for controlling machinery. The system can include a sensor configured to measure an operating characteristic of a machine, and a safety controller in communication with the sensor. The safety controller can include a dedicated boundary processor and be in communication with a control processor through the boundary processor that isolates operations of the control processor form the safety controller. The safety controller can be configured to receive measurement data from the sensor, perform signal conditioning on the measurement data to generate a conditioned sample, analyze the conditioned sample to determine whether to take a safety action, and send the conditioned sample to the boundary processor for transmission to the control processor. The control processor can be configured to perform operations including receiving the conditioned sample and controlling one or more operations of the machine based on the conditioned sample.
G05B 19/042 - Commande à programme autre que la commande numérique, c.-à-d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques
A backplane that includes a first processor slot, a second processor slot, a plurality of input/output (I/O) slots, a first I/O bus, a second I/O bus electrically isolated from the first I/O bus, and a plurality of I/O connection ports. The first processor slot includes a first processor connection port having a plurality of pins electrically connected to a first processor bus. The second processor slot includes a second processor connection port having a plurality of pins connected to a second processor bus, that is electrically isolated from the first processor bus. The plurality of I/O connection ports each include a first set of pins electrically connected to the first I/O bus, and a second set of pins electrically connected to the second I/O bus. Each of the first processor slot, the second processor slot, and the plurality of I/O slots include at least one of the I/O connection ports.
The present disclosure involves systems, software, and computer implemented methods for controlling machinery. The system can include a sensor configured to measure an operating characteristic of a machine, and a safety controller in communication with the sensor. The safety controller can include a dedicated boundary processor and be in communication with a control processor through the boundary processor that isolates operations of the control processor form the safety controller. The safety controller can be configured to receive measurement data from the sensor, perform signal conditioning on the measurement data to generate a conditioned sample, analyze the conditioned sample to determine whether to take a safety action, and send the conditioned sample to the boundary processor for transmission to the control processor. The control processor can be configured to perform operations including receiving the conditioned sample and controlling one or more operations of the machine based on the conditioned sample.
A backplane that includes a first processor slot, a second processor slot, a plurality of input/output (I/O) slots, a first I/O bus, a second I/O bus electrically isolated from the first I/O bus, and a plurality of I/O connection ports. The first processor slot includes a first processor connection port having a plurality of pins electrically connected to a first processor bus. The second processor slot includes a second processor connection port having a plurality of pins connected to a second processor bus, that is electrically isolated from the first processor bus. The plurality of I/O connection ports each include a first set of pins electrically connected to the first I/O bus, and a second set of pins electrically connected to the second I/O bus. Each of the first processor slot, the second processor slot, and the plurality of I/O slots include at least one of the I/O connection ports.
A system and method of providing prime reliability of a primary fuel manifold upon failure of a primary fuel metering system by providing metered fuel from a secondary fuel metering system are provided. The system utilizes a transfer electro-hydraulic servo valve (EHSV), a discharge select valve (DSV) coupled to the EHSV, and a pair of throttling valves positioned between secondary fuel metering system and the primary and secondary fuel manifolds. The DSV has a multi-land piston that switches a control pressure and a shutoff pressure between the pair of throttling valves to transfer the supply of metered fuel of the secondary fuel metering system from the secondary fuel manifold to the primary fuel manifold. The output pressurizing valve of the failed primary fuel metering system is also closed to isolate the failed primary fuel metering system from the primary fuel manifold.
The subject matter of this specification can be embodied in, among other things, an apparatus that includes a first assembly having a first piston rod having a first rod end, a second assembly arranged substantially parallel to the first piston assembly and having a second piston rod having a second rod end, an end assembly defining a first aperture configured to receive the first rod end, and a second aperture configured to receive the second rod end, a first retaining cap configured to affix to the first rod end, abut the end assembly when affixed to the first rod end, and retain the first rod end within the first aperture, and a second retaining cap configured to affix to the second rod end, abut the end assembly when affixed to the second rod end, and retain the second rod end within the second aperture.
F15B 15/14 - Dispositifs actionnés par fluides pour déplacer un organe d'une position à une autreTransmission associée à ces dispositifs caractérisés par la structure de l'ensemble moteur le moteur étant du type à cylindre droit
F16J 7/00 - Tiges de piston, c.-à-d. tiges liées rigidement au piston
F15B 15/28 - Moyens pour indiquer la position, p. ex. fin de course
The subject matter of this specification can be embodied in, among other things, an apparatus that includes a first assembly having a first piston rod having a first rod end, a second assembly arranged substantially parallel to the first piston assembly and having a second piston rod having a second rod end, an end assembly defining a first aperture configured to receive the first rod end, and a second aperture configured to receive the second rod end, a first retaining cap configured to affix to the first rod end, abut the end assembly when affixed to the first rod end, and retain the first rod end within the first aperture, and a second retaining cap configured to affix to the second rod end, abut the end assembly when affixed to the second rod end, and retain the second rod end within the second aperture.
F15B 15/14 - Dispositifs actionnés par fluides pour déplacer un organe d'une position à une autreTransmission associée à ces dispositifs caractérisés par la structure de l'ensemble moteur le moteur étant du type à cylindre droit
The subject matter of this specification can be embodied in, among other things, a method for controlling a turbine engine that includes measuring, by a speed sensor, waveforms indicative of a speed of a rotating machine. Receiving the waveforms from the speed sensor and providing data representing the waveforms to a first signal path and to a second signal path, wherein the second signal path is isolated from the first signal path such that data communications at the second signal path do not interfere with communications on the first signal path. Controlling, responsive to the data received along the first signal path, one or more operations of the rotating machine. Storing, the data received along the second signal path, individual samples of the data in association with a respective timestamp indicating a time that the data was received.
G01P 3/488 - Dispositifs caractérisés par l'utilisation de moyens électriques ou magnétiques pour mesurer la vitesse angulaire en mesurant la fréquence du courant ou de la tension engendrés de signaux ayant la forme d'impulsions délivrés par des détecteurs à réluctance variable
G01P 3/481 - Dispositifs caractérisés par l'utilisation de moyens électriques ou magnétiques pour mesurer la vitesse angulaire en mesurant la fréquence du courant ou de la tension engendrés de signaux ayant la forme d'impulsions
G01P 3/487 - Dispositifs caractérisés par l'utilisation de moyens électriques ou magnétiques pour mesurer la vitesse angulaire en mesurant la fréquence du courant ou de la tension engendrés de signaux ayant la forme d'impulsions délivrés par des aimants rotatifs
G01P 3/49 - Dispositifs caractérisés par l'utilisation de moyens électriques ou magnétiques pour mesurer la vitesse angulaire en utilisant des courants de Foucault
F01D 17/06 - Aménagement des éléments sensibles sensibles à la vitesse
F02C 9/28 - Systèmes de régulation sensibles aux paramètres ambiants ou à ceux de l'ensemble fonctionnel, p. ex. à la température, à la pression, à la vitesse du rotor
The subject matter of this specification can be embodied in, among other things, a method for controlling a turbine engine that includes measuring, by a speed sensor, waveforms indicative of a speed of a rotating machine. Receiving the waveforms from the speed sensor and providing data representing the waveforms to a first signal path and to a second signal path, wherein the second signal path is isolated from the first signal path such that data communications at the second signal path do not interfere with communications on the first signal path. Controlling, responsive to the data received along the first signal path, one or more operations of the rotating machine. Storing, the data received along the second signal path, individual samples of the data in association with a respective timestamp indicating a time that the data was received.
F01D 17/06 - Aménagement des éléments sensibles sensibles à la vitesse
F02C 9/00 - Commande des ensembles fonctionnels de turbines à gazCommande de l'alimentation en combustible dans les ensembles fonctionnels de propulsion par réaction alimentés en air ambiant
The subject matter of this specification can be embodied in, among other things, a fluid flow conditioning apparatus that includes a linear fluid conduit having a first tubular body defining a major axis and extending from a conduit inlet to a conduit outlet arranged opposite the conduit inlet, and configured with a predetermined flow geometry to define a linear fluid flow path along the major axis, a fluid inlet non-parallel to the linear fluid flow path, a first fluid flow conditioner configured to receive fluid flow, condition fluid flow, and redirect conditioned fluid flow along the linear fluid flow path along the major axis, a second fluid flow conditioner configured to receive fluid flow from the linear fluid flow path along the major axis, redirect fluid flow away from the linear fluid flow path, and condition fluid flow.
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p. ex. en utilisant des débitmètres à ultrasons
G01F 1/667 - Dispositions de transducteurs pour les débitmètres à ultrasonsCircuits pour faire fonctionner les débitmètres à ultrasons
G01F 5/00 - Mesure d'une fraction du débit volumétrique
The subject matter of this specification can be embodied in, among other things, an engine assembly having a nacelle partially surrounding an engine, and a thrust reverser having a first element movable relative to the nacelle between a stowed and deployed position, a first hydraulic actuator configured to move the first element between the stowed and deployed position, the first hydraulic actuator being connected to a fluid source and a return reservoir, and a second element movable between a stowed and deployed position, a second hydraulic actuator configured to move the second element between the stowed and deployed position, the second hydraulic actuator being connected to the fluid source and the return reservoir, and a fluid control system having a servo valve operable to selectively route fluid between the fluid source, the first hydraulic actuator, and the return reservoir, and a controller configured to operate the servo valve.
F02K 1/76 - Commande ou régulation des inverseurs de poussée
F02K 1/60 - Inversion du jet principal par blocage de l'échappement vers l'arrière à l'aide d'éléments pivotants ayant la forme de paupières ou de coquilles, p. ex. inverseurs du type se trouvant en aval de la sortie de la tuyère en position de fonctionnement
F02K 1/54 - Tuyères comportant des moyens pour inverser la poussée
The subject matter of this specification can be embodied in, among other things, an engine assembly includes a nacelle configured to at least partially surround an engine, and a thrust reverser coupled to the nacelle, the thrust reverser having a thrust-reversing element movable relative to the nacelle between a stowed position and a deployed position, a hydraulic actuator operably coupled to move the thrust-reversing element between the stowed position and the deployed position, and a fluid control system configured to operate the hydraulic actuator, the fluid control system having an electrohydraulic servo valve operable to selectively route fluid between a pressurized fluid source, the hydraulic actuator, and a fluid return reservoir, and a bypass fluid line providing fluid communication between the hydraulic actuator and the fluid return reservoir independent of the electrohydraulic servo valve.
F02K 1/76 - Commande ou régulation des inverseurs de poussée
F02K 1/60 - Inversion du jet principal par blocage de l'échappement vers l'arrière à l'aide d'éléments pivotants ayant la forme de paupières ou de coquilles, p. ex. inverseurs du type se trouvant en aval de la sortie de la tuyère en position de fonctionnement
Engine assembly (10) having a nacelle (12) surrounding an engine, and a thrust reverser (22) coupled to the nacelle and having a thrust- reversing element (24a, 24b) movable relative to the nacelle between a stowed and deployed position, a first hydraulic actuator (202b) configured to move the thrust-reversing element between the stowed position and deployed position, the first hydraulic actuator being connected to a fluid source (210) and a return reservoir (212), and a second hydraulic actuator (202a) configured to move the thrust- reversing element between the stowed and deployed position, the second hydraulic actuator being connected to the fluid source and the return reservoir, and a control system having an electrohydraulic servo valve (203a) operable to selectively route fluid between the fluid source, the second hydraulic actuator, and the return reservoir, and a controller (206a) configured to operate the electrohydraulic servo valve.
The subject matter of this specification can be embodied in, among other things, an engine assembly having a nacelle surrounding an engine, and a thrust reverser coupled to the nacelle and having a thrust-reversing element movable relative to the nacelle between a stowed and deployed position, a first hydraulic actuator configured to move the thrust-reversing element between the stowed position and deployed position, the first hydraulic actuator being connected to a fluid source and a return reservoir, and a second hydraulic actuator configured to move the thrust-reversing element between the stowed and deployed position, the second hydraulic actuator being connected to the fluid source and the return reservoir, and a control system having an electrohydraulic servo valve operable to selectively route fluid between the fluid source, the second hydraulic actuator, and the return reservoir, and a controller configured to operate the electrohydraulic servo valve.
The subject matter of this specification can be embodied in, among other things, an engine assembly having a nacelle partially surrounding an engine, and a thrust reverser having a first element movable relative to the nacelle between a stowed and deployed position, a first hydraulic actuator configured to move the first element between the stowed and deployed position, the first hydraulic actuator being connected to a fluid source and a return reservoir, and a second element movable between a stowed and deployed position, a second hydraulic actuator configured to move the second element between the stowed and deployed position, the second hydraulic actuator being connected to the fluid source and the return reservoir, and a fluid control system having a servo valve operable to selectively route fluid between the fluid source, the first hydraulic actuator, and the return reservoir, and a controller configured to operate the servo valve.
F02K 1/76 - Commande ou régulation des inverseurs de poussée
F15B 1/26 - Réservoirs d'alimentation ou de pompage
F15B 13/02 - Dispositifs de distribution ou d'alimentation du fluide caractérisés par leur adaptation à la commande de servomoteurs
F15B 13/06 - Dispositifs de distribution ou d'alimentation du fluide caractérisés par leur adaptation à la commande de servomoteurs pour utilisation avec plusieurs servomoteurs
F15B 15/28 - Moyens pour indiquer la position, p. ex. fin de course
33.
SYSTEMS AND METHODS FOR DUAL, MOTOR-DRIVEN PUMPING AND DIRECT METERING
Systems and methods are provided for a dual-pump fuel delivery system. The system includes a primary pump to deliver a first fluid flow to the engine via a pump outlet. A secondary pump delivers a second fluid flow and a fuel metering valve to return the second fluid flow to a pump inlet in a first position, and to channel the second fluid flow to the pump outlet in a second position
Systems and methods are provided for a dual-pump fuel delivery system. The system includes a primary pump to deliver a first fluid flow to the engine via a pump outlet. A secondary pump delivers a second fluid flow and a fuel metering valve to return the second fluid flow to a pump inlet in a first position, and to channel the second fluid flow to the pump outlet in a second position.
09 - Appareils et instruments scientifiques et électriques
12 - Véhicules; appareils de locomotion par terre, par air ou par eau; parties de véhicules
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Drive machines; motors (except for land vehicles); Governors for use on prime movers; Governors for machines, engines and vehicles; Governors for driving engines and prime movers; Governors, hydraulic amplifiers, oil pumps and hydraulic actuators, all used primarily to regulate the speed and fuel consumption for engines in ships, aircraft, and stationary installations including hydro-electric power generating stations; Valves; Regulators as machine parts; machine-tools; Engines (excluding engines for land vehicles); couplings and transmission belts (excluding those for land vehicles); agricultural implements excluding those that are hand-operated; incubators for eggs; Regulators for drive machines and prime movers, namely hydraulic amplifiers, oil pumps, hydraulic operation instruments, all preferably intended for regulating speed and fuel consumption of ship engines, air vehicles as well as stationary machines, including power generators; Apparatus and machines for processing (screw machines, fraises etc.); engines (except those of vehicles), clutches, driving belts (except those of vehicles); agricultural equipment, brooders, auto-pilots (machines), for the precise adjustment of the speed of the engines, apparatus and auxiliary parts for auto-pilots; Regulators for engines, for regulation of velocity and fuel flow rate for use in the airplanes, ships, locomotives and other land vehicles, and in mobile power generators; Fuel injection systems, consisting essentially of fuel injection pumps, nozzles and computer for included fuel injection pumps; Mechanical, electrical and electronic controls and control systems for internal combustion engines, particularly for speed control and engine shut down; Automatic vending machines; Automatic governors for precise regulation of the speed of prime movers and accessories and auxiliaries for such governors, namely speed adjusters; Governors for prime movers and engines; Governors for machines, engines and vehicles; Oil pumps; Hydraulic actuators; Hydraulic controls; Regulators for engines, for regulation of velocity and fuel flow rate for use in the airplanes, ships, locomotives and other land vehicles, and in mobile power generators; Mechanical and electronic engine parts for the fuel injection, in particular injection valves, starting valves, safety valves, diverter valves, pressure lines, fuel supply lines, compressed air starting control, pump-nozzle systems, pumps, drives for valves, control valves, clutch parts, bearings, drive stations for diesel engines; Machine tools; Governors and parts thereof; governors and controls for prime movers and drive engines; Governors for prime movers and drive engines, oil pumps, hydraulic actuators, all used to regulate the speed and fuel consumption for engines in ships, aircraft, trains and other land vehicles; Governors for engines for land vehicles; Governors for engines and drive machines; Governors for regulating the speed of power sources for vehicles and apparatus for locomotion by land, air or water; Regulators for drive machines and other machines for regulating speed and fuel consumption of ships, air vehicles, trains and other land transport preparations; Regulators for engines, for regulation of velocity and fuel flow rate for use in the airplanes, ships, locomotives and other land vehicles, and in mobile power generators. Hand tools. Speed and fuel flow control devices for use on prime movers; Speed control devices for machines, engines and vehicles; Speed and fuel flow control devices for driving engines and prime movers; Automatic controls for prime movers and engines, including electronic controllers, electronic amplifiers, speed controlling devices, temperature and pressure controlling devices and electrical actuators, all used primarily to regulate the speed and fuel consumption for engines in ships, aircraft, and stationary installations including hydro-electric power generating stations; Automatic controls for synchronizing speed of prime motors, automatic controls for regulating pitch of parallel operating propellers (all in the form of machine parts) and automatic controls for synchronizing parallel operating electrical power generators; automatic controls for machines, namely electrically controlled hydraulic activators (servo plants); Measuring devices for controlling speed and flow of fuel; Control apparatus for speed regulation of engines and machines of all types; Automatic controls for drive machines and prime movers, including electronic control, electronic amplifiers, speedometers, heating and pressure sensitive appliances, electric operation instruments, all preferably intended for regulating speed and fuel consumption of ship engines, air vehicles as well as stationary machines, including power generators; Scientific, nautical, surveying and electrical apparatus and instruments (including wireless); photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; Coin or counter-freed apparatus, talking machines, cash registers, calculating machines, fire-extinguishing apparatus, Control apparatus and devices for regulating the speed; Scientific, nautical, surveying, electric, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus for recording, transmission, reproduction of sound or images; Magnetic data carriers, recording discs; Mechanisms for coin-operated apparatus; Cash registers, calculating machines and data processing equipment; Fire extinguishers; Electrical power supplies (not being machines or generators); Speed droop controllers; Limit controllers and automatic shut-down solenoids; Electric speed setting transducers; Magnetic sensing devices; Fluid pressure sensing devices; Electric tuning controls; Temperature sensitive controls; Frequency sensors; Electrical load sensors; Electrical amplifiers; Signal generators; AC-DC converters; Signal comparing circuits; Voltage level monitoring circuits; signal converters; Potentiometers; Controls for prime movers and engines; Speed control devices for machines, engines and vehicles; Automatic controls for prime movers and driving engines, including electronic controls, hydraulic and electronic amplifiers, speed controlling devices, temperature and pressure controlling devices and electric actuators; Automatic controls for prime movers and driving engines, including electronic controls, hydraulic and electronic amplifiers, speedometers, heating and pressure sensitive appliances and electric controls; Devices of control for regulation of the speed of engines and machines; Control apparatus for regulating the speed of machines and engines of all types; Mechanical and electronic engine parts for the fuel injection, in particular solenoid valves and control stations for diesel engines; Speed and fuel flow control devices for use on prime movers and parts thereof; Automatic regulators and governors for prime movers for vehicles; Automatic controls and accessories for prime movers and drive engines, namely electronic controls, hydraulic and electronic amplifiers, speed controlling devices, temperature and pressure controlling devices, electrical actuators, all used to regulate the speed and fuel consumption for engines in ships, aircraft, trains and other land vehicles; Speed and fuel flow control devices for engines for land vehicles; Speed control devices for engines and drive machines; Apparatus for regulating the speed of power sources for vehicles and apparatus for locomotion by land, air or water; Automatic controls for drive machines and other machines for regulating speed and fuel consumption of ships, air vehicles, trains and other land transport preparations. Motors for land vehicles; Vehicles; apparatus for locomotion by land, air or water. Development of software for control and monitoring of motors.
The subject matter of this specification can be embodied in, among other things, a hydrogen fuel cell anode control system including a hydrogen inlet configured to receive pressurized hydrogen, a hydrogen outlet configured to be fluidically coupled to an anode manifold of a hydrogen fuel cell, a recirculation inlet configured to receive overflow hydrogen from the anode manifold, a hydrogen pressure regulator configured to receive pressurized hydrogen from the hydrogen inlet, a hydrogen recirculation module configured to mix hydrogen received from the hydrogen pressure regulator and the recirculation inlet, and provide a hydrogen mixture to the hydrogen outlet, a differential pressure measurement module configured to measure a differential pressure between the anode manifold and a cathode manifold of the hydrogen fuel cell, and a controller configured to control at least one of the hydrogen pressure regulator or the hydrogen recirculation module based on the measured differential pressure.
The subject matter of this specification can be embodied in, among other things, a linear-to-rotary apparatus that includes a linear actuator having an actuator housing including a piston chamber, a piston shaft disposed in the piston chamber, and a rotor apparatus. The rotor apparatus includes a rotary joint defining a rotational axis, a rotor arm extending radially from the rotary joint and configured to at least partially pivot about the rotary joint, and a torque linkage pivotably connected to the rotor arm. The torque linkage is also attached to an end of the piston shaft of the piston at a pivot connection joint, where the pivot connection joint defines a pivot axis that is substantially perpendicular to the translation axis of the piston shaft.
F16H 21/34 - Transmissions à manivelleTransmissions à excentrique avec plusieurs bielles pour chaque manivelle ou excentrique
B64C 13/26 - Dispositifs de transmission sans amplification de puissance ou dans les cas où l'amplification de puissance est sans objet
F15B 15/06 - Schéma mécanique de montage caractérisé par les moyens transformant le mouvement de l'élément entraîné par le fluide en mouvement de l'organe terminal qui est actionné pour la transformation mécanique d'un mouvement rectiligne en un mouvement non rectiligne
F16C 7/02 - Structure des bielles de longueur fixe
F16H 21/22 - Transmissions à manivelleTransmissions à excentrique avec une bielle et un guidage par glissière à chaque manivelle ou excentrique
The subject matter of this specification can be embodied in, among other things, an electric motor health monitoring system that includes an estimator module configured to model one or more estimated motor values of an electric motor based on one or more motor control parameters and one or more motor control states, a non-transitory computer readable medium, and a fault detector module configured to (1) provide a fault signal based on the modeled one or more estimated motor values of the motor and a predetermined parameter threshold value, and (2) modify the non-transitory computer readable medium based on the fault signal.
H02P 25/03 - Moteurs synchrones avec excitation sans balai
H02P 29/02 - Protection contre les surcharges sans interruption automatique de l’alimentation
H02P 29/024 - Détection d’un défaut, p. ex. court circuit, rotor bloqué, circuit ouvert ou perte de charge
H02P 29/032 - Prévention d’un endommagement du moteur, p. ex. détermination de limites individuelles de courant pour différentes conditions de fonctionnement
The subject matter of this specification can be embodied in, among other things, a method that includes determining an electrical current output of a fuel cell stack configured to generate electrical current from hydrogen provided in a hydrogen recirculation loop, determining an efficiency level of the fuel cell stack, determining a nitrogen diffusion rate based on the determined electrical current output and the determined efficiency level, and determining a nitrogen concentration in the hydrogen recirculation loop based on the determined nitrogen diffusion rate.
H01M 8/04089 - Dispositions pour la commande des paramètres des réactifs, p. ex. de la pression ou de la concentration des réactifs gazeux
H01M 8/04223 - Dispositions auxiliaires, p. ex. pour la commande de la pression ou pour la circulation des fluides pendant le démarrage ou l’arrêtDépolarisation ou activation, p. ex. purgeMoyens pour court-circuiter les éléments à combustible défectueux
The subject matter of this specification can be embodied in, among other things, a linear actuator lock apparatus having a housing having an inner surface defining an axial cavity having a first housing portion where the axial cavity has a first lateral size, a second housing portion having a second, larger lateral size, and a face from the first housing portion to the second housing portion, a lock assembly having a lock carrier configured for movement within the cavity between a first position and a position, and a lock finger affixed to and extending away from the lock carrier, where the second finger end is configured to contact the face when extended and fit within the first housing portion when retracted, and a sleeve configured to move between a position in which the lock finger is permitted to extend and a position configured to contact and retract the lock finger.
The subject matter of this specification can be embodied in, among other things, a linear actuator lock apparatus having a housing having an inner surface defining an axial cavity having a first housing portion where the axial cavity has a first lateral size, a second housing portion having a second, larger lateral size, and a face from the first housing portion to the second housing portion, a lock assembly having a lock carrier configured for movement within the cavity between a first position and a position, and a lock finger affixed to and extending away from the lock carrier, where the second finger end is configured to contact the face when extended and fit within the first housing portion when retracted, and a sleeve configured to move between a position in which the lock finger is permitted to extend and a position configured to contact and retract the lock finger.
The subject matter of this specification can be embodied in, among other things, a method that includes determining an electrical current output of a fuel cell stack configured to generate electrical current from hydrogen provided in a hydrogen recirculation loop, determining an efficiency level of the fuel cell stack, determining a nitrogen diffusion rate based on the determined electrical current output and the determined efficiency level, and determining a nitrogen concentration in the hydrogen recirculation loop based on the determined nitrogen diffusion rate.
G01R 31/378 - Dispositions pour le test, la mesure ou la surveillance de l’état électrique d’accumulateurs ou de batteries, p. ex. de la capacité ou de l’état de charge spécialement adaptées à un type de batterie ou d’accumulateur
G01R 31/392 - Détermination du vieillissement ou de la dégradation de la batterie, p. ex. état de santé
H01M 8/04089 - Dispositions pour la commande des paramètres des réactifs, p. ex. de la pression ou de la concentration des réactifs gazeux
H01M 8/04111 - Dispositions pour la commande des paramètres des réactifs, p. ex. de la pression ou de la concentration des réactifs gazeux utilisant un assemblage turbine compresseur
H01M 8/04119 - Dispositions pour la commande des paramètres des réactifs, p. ex. de la pression ou de la concentration des réactifs gazeux avec apport simultané ou évacuation simultanée d’électrolyteHumidification ou déshumidification
H01M 8/04223 - Dispositions auxiliaires, p. ex. pour la commande de la pression ou pour la circulation des fluides pendant le démarrage ou l’arrêtDépolarisation ou activation, p. ex. purgeMoyens pour court-circuiter les éléments à combustible défectueux
H01M 8/04992 - Procédés de commande des éléments à combustible ou des systèmes d’éléments à combustible caractérisés par la mise en œuvre d’algorithmes mathématiques ou de calcul, p. ex. les boucles de commande de rétroaction, la logique floue, les réseaux neuronaux ou l’intelligence artificielle
43.
IN SITU VERIFICATION OF REDUNDANT ELECTRO-HYDRAULIC SERVO VALVE (EHSV) OPERATIONAL STATUS IN REDUNDANT FLOW CONTROL SYSTEMS
in situin situ verification of operational status of control components in a redundant flow control system is provided. The flow control system includes a primary electro-hydraulic servo valve (EHSV) and a secondary EHSV. Only the primary EHSV includes a position sensor. The redundant EHSVs are coupled via a transfer valve to control a position of a metering valve supplying fluid flow to at least one downstream system. The downstream system may be, e.g., a combustor, an actuator, an end effector, or a combination thereof.
The subject matter of this specification can be embodied in, among other things, an electric motor health monitoring system that includes an estimator module configured to model one or more estimated motor values of an electric motor based on one or more motor control parameters and one or more motor control states, a non-transitory computer readable medium, and a fault detector module configured to (1) provide a fault signal based on the modeled one or more estimated motor values of the motor and a predetermined parameter threshold value, and (2) modify the non-transitory computer readable medium based on the fault signal.
H02P 7/22 - Dispositions pour réguler ou commander la vitesse ou le couple de moteurs électriques à courant continu pour réguler ou commander individuellement un moteur dynamo-électrique à courant continu en faisant varier le champ ou le courant d'induit par commande maîtresse avec puissance auxiliaire utilisant un combinateur à plusieurs positions, p. ex. à tambour, commandant le circuit du moteur au moyen d'un combinateur à plusieurs positions entraîné par moteur pilote ou d'une résistance variable ajustée par moteur pilote
H02P 7/32 - Dispositions pour réguler ou commander la vitesse ou le couple de moteurs électriques à courant continu pour réguler ou commander individuellement un moteur dynamo-électrique à courant continu en faisant varier le champ ou le courant d'induit par commande maîtresse avec puissance auxiliaire utilisant des machines excitées par réaction d'induit, p. ex. métadyne, amplidyne, rotorol
45.
TANGENTIAL PRESSURE ATOMIZING TIP WITHOUT FEED CHAMBER
Embodiments of the disclosure relate to a tip for a fuel nozzle. The tip includes a tip body having a first end and a second end spatially disposed from the first end along a longitudinal axis of the tip body. A nozzle passage is disposed at the first end. An entrance cavity, a swirl chamber, and a plurality of swirl passages are disposed within the tip body. The plurality of swirl passages connects the entrance cavity and the swirl chamber. Each of the swirl passages has an opening to the entrance cavity and an exit into the swirl chamber. Fluid communication is provided from the second end to the first end such that fluid flows from the entrance cavity, through the swirl passages, into the swirl chamber, and out through nozzle passage.
F23D 11/24 - Brûleurs à pulvérisation directe de gouttelettes de liquide ou de liquide vaporisé dans l'enceinte de combustion le combustible étant comprimé avant un ajutage d'où il est pulvérisé dans une enceinte du fait d'une réduction appréciable de la pression
F23D 11/38 - AjutagesDispositifs de nettoyage des ajutages
46.
System and method for in situ verification of redundant electro-hydraulic servo valve (EHSV) operational status in redundant flow control systems
A system and method of in situ verification of operational status of control components in a redundant flow control system is provided. The flow control system includes a primary electro-hydraulic servo valve (EHSV) and a secondary EHSV. Only the primary EHSV includes a position sensor. The redundant EHSVs are coupled via a transfer valve to control a position of a metering valve supplying fluid flow to at least one downstream system. The downstream system may be, e.g., a combustor, an actuator, an end effector, or a combination thereof.
F02C 9/26 - Commande de l'alimentation en combustible
F02C 7/22 - Systèmes d'alimentation en combustible
F02C 9/46 - Commande de secours de l'alimentation en combustible
F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
The subject matter of this specification can be embodied in, among other things, an actuator apparatus includes an output member configured to actuate between a first positional configuration and a second positional configuration, a source fluid reservoir, a fluid velocity resistor configured to provide a predetermined resistance to fluid flow, a fluid velocity fuse configured to flow fluid flows having a first predetermined range of fluid velocities and to block fluid flows having second predetermined range of fluid velocities, and a fluid actuator assembly configured to urge fluid flow from the source fluid reservoir through the fluid velocity resistor and the fluid velocity fuse based on actuation of the output member.
F02K 1/76 - Commande ou régulation des inverseurs de poussée
F02K 1/72 - Inversion du flux de la soufflante utilisant des volets inverseurs de poussée ou des portes montées sur le carter de la soufflante la partie arrière du carter de la soufflante étant mobile pour découvrir des ouvertures d'inversion de poussée dans le carter de la soufflante
48.
Tangential pressure atomizing tip without feed chamber
Embodiments of the disclosure relate to a tip for a fuel nozzle. The tip includes a tip body having a first end and a second end spatially disposed from the first end along a longitudinal axis of the tip body. A nozzle passage is disposed at the first end. An entrance cavity, a swirl chamber, and a plurality of swirl passages are disposed within the tip body. The plurality of swirl passages connects the entrance cavity and the swirl chamber. Each of the swirl passages has an opening to the entrance cavity and an exit into the swirl chamber. Fluid communication is provided from the second end to the first end such that fluid flows from the entrance cavity, through the swirl passages, into the swirl chamber, and out through nozzle passage.
F23R 3/14 - Aménagements de l'entrée d'air pour l'air primaire créant un tourbillon au moyen d'ailettes de tourbillonnement
F23R 3/28 - Chambres de combustion à combustion continue utilisant des combustibles liquides ou gazeux caractérisées par l'alimentation en combustible
F23R 3/30 - Chambres de combustion à combustion continue utilisant des combustibles liquides ou gazeux caractérisées par l'alimentation en combustible comprenant des dispositifs destinés à prévaporiser le combustible
49.
SENSOR SYSTEM EMULATING VARIABLE DIFFERENTIAL TRANSFORMER
Embodiments of the present disclosure relate to a system including a controller, a position sensor, and an emulator circuit. The controller is configured to output an AC excitation signal and receive a first AC response signal and a second AC response signal. The controller is configured to determine a position of an effector based on the first AC response signal and the second AC response signal. The position sensor is configured to be connected to the effector, and the position sensor is configured to output a position signal based on the position of the effector. The emulator circuit is configured to modulate the amplitude and frequency of the position signal based on the AC excitation signal to produce the first AC response signal and the second AC response signal.
G01D 5/22 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension en faisant varier l'inductance, p. ex. une armature mobile influençant deux bobines par une action différentielle
The subject matter of this specification can be embodied in, among other things, an internal combustion engine ignition system includes a voltage divider configured to be coupled to a primary transformer ignition coil connector, the voltage divider configured to reduce a voltage received from the primary transformer ignition coil to a controller voltage, a comparator circuit with an input coupled to an output of the voltage divider, and a controller configured to detect the voltage output of the voltage divider, detect the voltage output of a vehicle electric power supply, detect the voltage output of a comparator, and determine an estimated breakdown voltage of a spark plug based on the detected output voltage of the voltage divider and the detected voltage of the power supply.
F02P 17/12 - Test des caractéristiques de l'étincelle, de la tension ou du courant d'allumage
F02P 3/02 - Autres systèmes d'allumage par étincelle électrique caractérisés par le type de production ou de stockage de l'énergie nécessaire comportant un stockage de l'énergie par induction, p. ex. aménagement des bobines d'induction
The subject matter of this specification can be embodied in, among other things, an internal combustion engine ignition system includes a voltage divider configured to be coupled to a primary transformer ignition coil connector, the voltage divider configured to reduce a voltage received from the primary transformer ignition coil to a controller voltage, a comparator circuit with an input coupled to an output of the voltage divider, and a controller configured to detect the voltage output of the voltage divider, detect the voltage output of a vehicle electric power supply, detect the voltage output of a comparator, and determine an estimated breakdown voltage of a spark plug based on the detected output voltage of the voltage divider and the detected voltage of the power supply.
F02P 3/045 - Schéma de montage des circuits pour la commande du temps de fermeture ou d'ouverture
G01R 19/165 - Indication de ce qu'un courant ou une tension est, soit supérieur ou inférieur à une valeur prédéterminée, soit à l'intérieur ou à l'extérieur d'une plage de valeurs prédéterminée
H01F 38/12 - Allumage, p. ex. pour moteurs à combustion interne
Methods and systems for a gear mechanism that includes one or more actuators operable to activate or deactivate in order to drive or be driven by sequential engagement with one or more cam features incorporated within an interior of a ring gear.
F16H 63/34 - Mécanismes de verrouillage ou de mise hors service
F16H 1/22 - Transmissions à engrenages pour transmettre un mouvement rotatif sans engrenages à mouvement orbital comportant plus de deux organes engrenés avec plusieurs arbres d’entraînement ou entraînésTransmissions à engrenages pour transmettre un mouvement rotatif sans engrenages à mouvement orbital comportant plus de deux organes engrenés avec dispositions pour répartir le couple entre plusieurs arbres intermédiaires
53.
SYSTEMS AND METHODS FOR SEQUENTIAL OPERATION FOR MULTIPLE INPUT/OUTPUT SYSTEMS
Methods and systems for a gear mechanism that includes one or more actuators operable to activate or deactivate in order to drive or be driven by sequential engagement with one or more cam features incorporated within an interior of a ring gear.
F16H 37/08 - Combinaisons de transmissions mécaniques non prévues dans les groupes comportant essentiellement et uniquement des transmissions à engrenages ou à friction à plusieurs arbres d’entraînement ou entraînésCombinaisons de transmissions mécaniques non prévues dans les groupes comportant essentiellement et uniquement des transmissions à engrenages ou à friction avec dispositions pour répartir le couple entre plusieurs arbres intermédiaires avec transmission différentielle
F16D 41/30 - Roues libres ou embrayages à roue libre spécialement adaptés aux bicyclettes avec cliquet articulé coopérant avec des dents, des tenons ou des éléments analogues
The subject matter of this specification can be embodied in, among other things, a sensor that includes a first axial sensor housing portion having a first cross-sectional area, a second axial sensor housing portion arranged adjacent to the first axial sensor housing portion along the sensor axis and having a second cross-sectional area larger than the first cross-sectional area, and a face extending from the interior surface of the first axial sensor housing portion to the interior surface of the second axial sensor housing portion, a first buffer rod within the first axial sensor housing portion and having a first axial end and a second axial end, a second buffer rod within the second axial sensor housing portion and abutting the face, and having a third axial end and a fourth axial end, and an acoustic transceiver element acoustically mated to the second axial end and the third axial end.
G01F 1/667 - Dispositions de transducteurs pour les débitmètres à ultrasonsCircuits pour faire fonctionner les débitmètres à ultrasons
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p. ex. en utilisant des débitmètres à ultrasons
A flow system (10) includes a flow source device (12) configured to receive fluid from a first flow line (14) and output fluid on a second flow line (16). An output (18) is in fluid communication with the flow source device on the second flow line. An actuation system (22) is in fluid communication with the second flow line through a third flow line (20). A flow meter (28) measures a flow rate in the second flow line without bypassing any fluid to the first flow line. A controller (26) is in communication with the flow source device and the flow meter. The controller adjusts the flow source device to achieve a desired flow rate at the output based on a condition of the flow source device and the flow rate measured by the flow meter.
A multiphase fuel injector has an injector body with a fuel inlet at a first end and a fuel outlet at a second end opposite the first end. A primary circuit disposed proximate the fuel inlet extends into a central portion of the injector body. The primary circuit is configured to receive a first flow of pressurized fuel from the fuel inlet that discharges into a spin chamber in the injector body downstream from the fuel inlet. The primary circuit is configured to impart a swirling action to the first flow of pressurized fuel. A secondary circuit is located in the injector body radially outward from the primary circuit. The secondary circuit is configured to receive a second flow of pressurized fuel from the fuel inlet that discharges into the fuel outlet. The secondary circuit is configured to impart a swirling action to the second flow of pressurized fuel.
F23R 3/34 - Alimentation de différentes zones de combustion
F02C 7/232 - Soupapes pour combustibleSystèmes ou soupapes de drainage
F16K 17/04 - Soupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage ouvrant sur excès de pression d'un côtéSoupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage fermant sur insuffisance de pression d'un côté actionnés par ressort
F16K 21/04 - Obturateurs à fermeture automatique, c.-à-d. se fermant d'eux-même après fonctionnement
F23R 3/16 - Chambres de combustion à combustion continue utilisant des combustibles liquides ou gazeux caractérisées par la configuration du flux d'air ou du flux de gaz avec des dispositifs à l'intérieur du tube à flamme ou de la chambre de combustion pour influer sur le flux d'air ou de gaz
F23R 3/28 - Chambres de combustion à combustion continue utilisant des combustibles liquides ou gazeux caractérisées par l'alimentation en combustible
The subject matter of this specification can be embodied in, among other things, a torque motor that includes a base carrying an armature, said armature carrying an elongated body extending from a first elongate body end to a second elongate body end opposite the first elongate body end, and a displacement limiter having a bore at least partly defined therein and removably affixed to the base proximal the first elongate body end, wherein the first elongate body end at least partly extends into the bore.
Systems and methods are provided for improving the accuracy of fuel metering for a motor-driven fuel pump, without the need for a matched-set controller. A characterization resistor value specific to the fuel pump or motor is used to calculate a fuel pump motor speed to regulate fuel delivery to an engine.
F02M 59/20 - Variation du débit du combustible en quantité ou dans le temps
F02M 37/04 - Alimentation au moyen de pompes entraînées
F04D 27/00 - Commande, p. ex. régulation, des pompes, des installations ou des systèmes de pompage spécialement adaptés aux fluides compressibles
F04C 14/08 - Commande, surveillance ou dispositions de sécurité pour "machines" ou pompes ou installations de pompage caractérisées par une variation de la vitesse de rotation
F02D 41/30 - Commande de l'injection de combustible
A cold gas thruster having a two-stage solenoid is provided. Pressurized gas from the inlet flows to the back side of the piston (134) to hold the piston closed. The pressure is maintained by a check ball held by the solenoid armature. When the solenoid is energized, the armature allows the check ball to move to bleed off the pressure holding the piston closed. The piston moves away from its seat and allows the pressurized gas to flow to the outlet creating thrust. When the solenoid coil is de-energized, the check ball is forced against its seat, which blocks the escape of pressure on the back side of the piston, so that it can re-pressurize back up to the inlet pressure. This creates a force imbalance and moves the piston to close the valve and stop the thrust. Different nozzles can be used for different thrust profiles without changing the solenoid.
F02K 9/80 - Moteurs-fusées, c.-à-d. ensembles fonctionnels portant à la fois le combustible et son oxydantLeur commande caractérisés par la commande de la poussée ou du vecteur poussée
Embodiments of a flow system are provided. The flow system includes a flow source device configured to receive fluid from a first flow line and output fluid on a second flow line. An output is in fluid communication with the flow source device on the second flow line. An actuation system is in fluid communication with the second flow line through a third flow line. A flow meter measures a flow rate in the second flow line without bypassing any fluid to the first flow line. A controller is in communication with the flow source device and the flow meter. The controller adjusts the flow source device to achieve a desired flow rate at the output based on a condition of the flow source device and the flow rate measured by the flow meter.
F02C 9/30 - Commande de l'alimentation en combustible caractérisée par un débit variable d'une pompe à combustible
F02C 7/232 - Soupapes pour combustibleSystèmes ou soupapes de drainage
F02C 9/26 - Commande de l'alimentation en combustible
F02C 9/28 - Systèmes de régulation sensibles aux paramètres ambiants ou à ceux de l'ensemble fonctionnel, p. ex. à la température, à la pression, à la vitesse du rotor
F02C 7/22 - Systèmes d'alimentation en combustible
61.
METHODS AND SYSTEMS FOR MOTOR-DRIVEN METERING PUMP
Systems and methods are provided for improving the accuracy of fuel metering for a motor-driven fuel pump, without the need for a matched-set controller. A characterization resistor value specific to the fuel pump or motor is used to calculate a fuel pump motor speed to regulate fuel delivery to an engine.
F02D 41/30 - Commande de l'injection de combustible
F04C 14/08 - Commande, surveillance ou dispositions de sécurité pour "machines" ou pompes ou installations de pompage caractérisées par une variation de la vitesse de rotation
A cold gas thruster having a two-stage solenoid is provided. Pressurized gas from the inlet flows to the back side of the piston to hold the piston closed. The pressure is maintained by a check ball held by the solenoid armature. When the solenoid is energized, the armature allows the check ball to move to bleed off the pressure holding the piston closed. The piston moves away from its seat and allows the pressurized gas to flow to the outlet creating thrust. When the solenoid coil is de-energized, the check ball is forced against its seat, which blocks the escape of pressure on the back side of the piston, so that it can re-pressurize back up to the inlet pressure. This creates a force imbalance and moves the piston to close the valve and stop the thrust. Different nozzles can be used for different thrust profiles without changing the solenoid.
B64G 1/40 - Aménagements ou adaptations des systèmes de propulsion
F16K 11/14 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont plusieurs éléments de fermeture ne se déplacent pas comme un tout actionnés par un seul organe de commande, p. ex. une clé
F16K 31/06 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques utilisant un aimant
The subject matter of this specification can be embodied in, among other things, a method for determining health of an actuator that includes applying power to an actuator operating in a nominal operational state, capturing a first signal representative of actuator movement or actuator position, capturing a second signal representative of total actuator force, determining, based on the first signal, an inertial force value representative of force used to overcome at least one of inertia of the actuator and inertia of a load on the actuator, determining, based on the inertial force value and the captured second signal, a load force value representative of actuator force used to overcome force of the load and friction of the load, determining a health value of the actuator based on the load force value, and providing an indication of health of at least one of the actuator and the load.
A multiphase fuel injector has an injector body with a fuel inlet at a first end and a fuel outlet at a second end opposite the first end. A primary circuit disposed proximate the fuel inlet extends into a central portion of the injector body. The primary circuit is configured to receive a first flow of pressurized fuel from the fuel inlet that discharges into a spin chamber in the injector body downstream from the fuel inlet. The primary circuit is configured to impart a swirling action to the first flow of pressurized fuel. A secondary circuit is located in the injector body radially outward from the primary circuit. The secondary circuit is configured to receive a second flow of pressurized fuel from the fuel inlet that discharges into the fuel outlet. The secondary circuit is configured to impart a swirling action to the second flow of pressurized fuel.
B22F 10/28 - Fusion sur lit de poudre, p. ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
F23D 5/12 - Brûleurs dans lesquels le combustible liquide se vaporise dans l'enceinte de combustion, avec ou sans transformation chimique du combustible vaporisé Parties constitutives
F23D 11/26 - Brûleurs à pulvérisation directe de gouttelettes de liquide ou de liquide vaporisé dans l'enceinte de combustion le combustible étant comprimé avant un ajutage d'où il est pulvérisé dans une enceinte du fait d'une réduction appréciable de la pression avec dispositifs permettant de faire varier le régime de pulvérisation du combustible
F23N 1/00 - Régulation de l'alimentation en combustible
The subject matter of this specification can be embodied in, among other things, a method for determining health of an actuator that includes applying power to an actuator operating in a nominal operational state, capturing a first signal representative of actuator movement or actuator position, capturing a second signal representative of total actuator force, determining, based on the first signal, an inertial force value representative of force used to overcome at least one of inertia of the actuator and inertia of a load on the actuator, determining, based on the inertial force value and the captured second signal, a load force value representative of actuator force used to overcome force of the load and friction of the load, determining a health value of the actuator based on the load force value, and providing an indication of health of at least one of the actuator and the load.
G01L 23/02 - Dispositifs ou appareils pour la mesure ou l'indication ou l'enregistrement des changements, rapides, tels que des oscillations, de la pression des vapeurs, des gaz ou des liquidesIndicateurs pour déterminer le travail ou l'énergie des moteurs à vapeur, à combustion interne ou à autres pressions de fluides à partir de la condition du fluide moteur indiquant ou enregistrant mécaniquement et comportant des ressorts chargés ou des ressorts de rappel
G01P 15/16 - Mesure de l'accélérationMesure de la décélérationMesure des chocs, c.-à-d. d'une variation brusque de l'accélération en calculant la dérivée par rapport au temps d'un signal de vitesse mesuré
G01L 5/00 - Appareils ou procédés pour la mesure des forces, du travail, de la puissance mécanique ou du couple, spécialement adaptés à des fins spécifiques
The subject matter of this specification can be embodied in, among other things, a rotary lock assembly includes an epicyclic gear assembly having a sun gear assembly, a ring gear assembly, and a planet gear assembly having a collection of planet gears mechanically engaged to the sun gear assembly and the ring gear assembly, and a planet carrier mechanically engaged to the planet gears and configured to be rotated by the planet gears, a lock rotor configured to be rotated by the ring gear assembly, and a rotary output assembly configured to be rotated by the planet carrier.
F16D 63/00 - Freins non prévus ailleursFreins combinant plusieurs des types mentionnés dans les groupes
F16H 19/02 - Transmissions comportant essentiellement et uniquement des engrenages ou des organes de friction et qui ne peuvent transmettre un mouvement rotatif indéfini pour convertir un mouvement rotatif en mouvement alternatif et vice versa
F16H 19/08 - Transmissions comportant essentiellement et uniquement des engrenages ou des organes de friction et qui ne peuvent transmettre un mouvement rotatif indéfini pour convertir un mouvement rotatif en mouvement oscillant et vice versa
The subject matter of this specification can be embodied in, among other things, a rotary lock assembly includes an epicyclic gear assembly having a sun gear assembly, a ring gear assembly, and a planet gear assembly having a collection of planet gears mechanically engaged to the sun gear assembly and the ring gear assembly, and a planet carrier mechanically engaged to the planet gears and configured to be rotated by the planet gears, a lock rotor configured to be rotated by the ring gear assembly, and a rotary output assembly configured to be rotated by the planet carrier.
F16H 3/54 - Transmissions ayant uniquement deux engrenages centraux reliés par des engrenages à mouvement orbital avec engrenages orbitaux uniques ou paires d'engrenages orbitaux rigidement liés comprenant des engrenages orbitaux droits un des engrenages centraux étant denté intérieurement et l'autre denté extérieurement
F16D 59/00 - Freins automatiques, p. ex. entrant en action à une vitesse prédéterminée
F16D 59/02 - Freins automatiques, p. ex. entrant en action à une vitesse prédéterminée montés à ressort et conçus pour être desserrés par moyens mécaniques, à fluide ou électromagnétiques
A redundant fuel metering system and method for a multi-stage combustor that utilizes a fuel metering valve EHSV from a less critical combustor stage fuel metering system as a redundant backup to the main metering valve EHSV. In the event of a failure of the main FMV EHSV, a control module signals a transfer system to switch control of the main FMV to the less critical combustor stage fuel metering system EHSV, thus maintaining control of the FMV for the main combustor. In doing this, the transfer valve then drives the less critical combustor stage fuel metering system FMV to its failsafe position while maintaining control of the main system.
F02C 7/232 - Soupapes pour combustibleSystèmes ou soupapes de drainage
F02C 7/228 - Division du fluide entre plusieurs brûleurs
F02C 9/26 - Commande de l'alimentation en combustible
F02C 9/46 - Commande de secours de l'alimentation en combustible
F02K 3/10 - Ensembles fonctionnels comportant une turbine à gaz entraînant un compresseur ou un ventilateur soufflant avec réchauffage supplémentaire du fluide de travailLeur commande par postcombustion
69.
Redundant electro-hydraulic servo valve (EHSV) control in a fuel metering system
A redundant fuel metering system and method for a multi-stage combustor that utilizes a fuel metering valve EHSV from a less critical combustor stage fuel metering system as a redundant backup to the main metering valve EHSV. In the event of a failure of the main FMV EHSV, a control module signals a transfer system to switch control of the main FMV to the less critical combustor stage fuel metering system EHSV, thus maintaining control of the FMV for the main combustor. In doing this, the transfer valve then drives the less critical combustor stage fuel metering system FMV to its failsafe position while maintaining control of the main system.
Embodiments of a metering valve for a fuel nozzle are disclosed. The metering valve includes a fitting having an interior cavity and an inlet, a liner disposed within the interior cavity, and a spool having an orifice. The liner includes inlet ports, and the spool is disposed within the liner. The spool is configured to slide within the liner to control flow between the inlet and the orifice. The spool has an open position in which the spool uncovers the inlet ports, a closed position in which the spool is seated against the fitting, and a lifted off position in which the spool is not seated against the fitting and covers the inlet ports. A dribble flow path through at least one of the spool or the liner provides fluid communication between the inlet and the orifice when the spool is in the lifted off position.
F16K 11/07 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des tiroirs à éléments de fermeture glissant linéairement à glissières cylindriques
F02C 7/232 - Soupapes pour combustibleSystèmes ou soupapes de drainage
F02C 9/26 - Commande de l'alimentation en combustible
71.
FUEL NOZZLE METERING VALVE THAT PROVIDES DRIBBLE FLOW AND RELATED METHOD
Embodiments of a metering valve for a fuel nozzle are disclosed. The metering valve includes a fitting having an interior cavity and an inlet, a liner disposed within the interior cavity, and a spool having an orifice. The liner includes inlet ports, and the spool is disposed within the liner. The spool is configured to slide within the liner to control flow between the inlet and the orifice. The spool has an open position in which the spool uncovers the inlet ports, a closed position in which the spool is seated against the fitting, and a lifted off position in which the spool is not seated against the fitting and covers the inlet ports. A dribble flow path through at least one of the spool or the liner provides fluid communication between the inlet and the orifice when the spool is in the lifted off position.
The subject matter of this specification can be embodied in, among other things, a linear actuator lock apparatus having a housing having an inner surface defining an axial cavity having a first housing portion where the axial cavity has a first lateral size, a second housing portion having a second, larger lateral size, and a face from the first housing portion to the second housing portion, a lock assembly having a lock carrier configured for movement within the cavity between a first position and a position, and a lock finger affixed to and extending away from the lock carrier, where the second finger end is configured to contact the face when extended and fit within the first housing portion when retracted, and a sleeve configured to move between a position in which the lock finger is permitted to extend and a position configured to contact and retract the lock finger.
The invention relates to a position sensor system, comprising: a sensor housing defining a first cavity having a first face; a fluid effector comprising: an actuator housing having an inner surface defining a second cavity; and a moveable body having a second face and configured for reciprocal movement within the second cavity; an acoustic transmitter system configured to emit a first emitted acoustic waveform toward the first face, and emit a second emitted acoustic waveform toward the second face; and an acoustic receiver system configured to detect a first reflected acoustic waveform based on a first reflection of the first emitted acoustic waveform based on the first face, and detect a second reflected acoustic waveform based on a second reflection of the second emitted acoustic waveform based on the second face.
Disclosed are seal arrangements in a hydraulic device. The seal arrangement includes a seal channel defining a loop. A seal is seated within the seal channel. A coolant flow passage has a first part intersecting with the seal channel at a first point and a second part intersecting with the seal channel at a second point. The first part of the coolant flow passage is configured to provide hydraulic fluid to the seal channel such that, at the first point, a first portion of the hydraulic fluid flows in a first direction around the loop and a second portion of the hydraulic fluid flows in a second direction opposite to the first direction around the loop. At the second point, the first portion of hydraulic fluid and the second portion of hydraulic fluid are configured to flow into the second part of the coolant flow passage.
F15B 15/14 - Dispositifs actionnés par fluides pour déplacer un organe d'une position à une autreTransmission associée à ces dispositifs caractérisés par la structure de l'ensemble moteur le moteur étant du type à cylindre droit
Disclosed are seal arrangements in a hydraulic device. The seal arrangement includes a seal channel defining a loop. A seal is seated within the seal channel. A coolant flow passage has a first part intersecting with the seal channel at a first point and a second part intersecting with the seal channel at a second point. The first part of the coolant flow passage is configured to provide hydraulic fluid to the seal channel such that, at the first point, a first portion of the hydraulic fluid flows in a first direction around the loop and a second portion of the hydraulic fluid flows in a second direction opposite to the first direction around the loop. At the second point, the first portion of hydraulic fluid and the second portion of hydraulic fluid are configured to flow into the second part of the coolant flow passage.
F15B 15/14 - Dispositifs actionnés par fluides pour déplacer un organe d'une position à une autreTransmission associée à ces dispositifs caractérisés par la structure de l'ensemble moteur le moteur étant du type à cylindre droit
F15B 20/00 - Dispositions propres à la sécurité pour systèmes de manœuvre utilisant les fluidesUtilisation des dispositifs de sécurité dans les systèmes de manœuvre utilisant des fluidesMesures d'urgence pour les systèmes de manœuvre utilisant des fluides
F15B 15/28 - Moyens pour indiquer la position, p. ex. fin de course
The subject matter of this specification can be embodied in, among other things, a system that includes a flexible structure, a power inverter, a first electromechanical device configured to urge movement of a first portion of the flexible structure based on power received from the power inverter, a second electromechanical device configured to urge movement of a second portion of the flexible structure based on power received from the power inverter, a feedback sensor configured to provide a feedback signal indicative of alignment between the first portion and the second portion, and a controller configured to control operation of at least one of the first electromechanical device and the second electromechanical device based on the feedback signal.
Gas turbine combustor assembly (100) comprising a primary combustion chamber (106) in fluid communication with a primary fuel injector and a primary air inlet, and an igniter (200) carried by the primary combustion chamber an including an igniter stage having an auxiliary combustion chamber housing (205) comprising a mixing chamber (340) and a tubular throat (342) converging downstream of the mixing chamber, an auxiliary air conduit (230) having an auxiliary air outlet in fluidic communication with the auxiliary combustion chamber, an auxiliary fuel conduit (240) having an auxiliary fuel outlet fluidic communication with the auxiliary combustion chamber and an ignition source (290) proximal the auxiliary fuel outlet.
F23R 3/42 - Chambres de combustion à combustion continue utilisant des combustibles liquides ou gazeux caractérisées par la disposition ou la forme des tubes à flamme ou des chambres de combustion
F02C 9/28 - Systèmes de régulation sensibles aux paramètres ambiants ou à ceux de l'ensemble fonctionnel, p. ex. à la température, à la pression, à la vitesse du rotor
The subject matter of this specification can be embodied in, among other things, an assembly that includes a primary combustion chamber in fluid communication with a primary fuel injector and a primary air inlet, and an igniter carried by the primary combustion chamber an includes an igniter stage having an auxiliary combustion chamber housing comprising a mixing chamber and a tubular throat converging downstream of the mixing chamber, an auxiliary air conduit having an auxiliary air outlet in fluidic communication with the auxiliary combustion chamber, an auxiliary fuel conduit having an auxiliary fuel outlet fluidic communication with the auxiliary combustion chamber, and an ignition source proximal the auxiliary fuel outlet.
A control apparatus (100) includes a first mounting member (110), a pivot member (120) defining an axis (122), an elongate member (130) configured to pivot about the axis and having a first elongate portion (132) configured as a first lever arm extending away from the pivot member in a first direction, a second elongate portion (134) extending away from the pivot member in a second direction opposite the first direction, a retainer bracket (140) affixed to the second elongate portion, a gimbal (150) moveably affixed to the first mounting member between the pivot member and the retainer bracket, a force bracket (160) moveably affixed to the second elongate portion by the retainer bracket, and a bias member (170) configured to urge movement of the force bracket in the second direction.
G05G 5/05 - Moyens pour faire revenir ou tendant à faire revenir les organes de commande vers une position de repos ou une position neutre, p. ex. en prévoyant des ressorts de retour ou des butées de fin de course élastiques
G05G 9/047 - Mécanismes de commande manuelle équipés d'un seul organe de commande travaillant avec plusieurs organes commandés, p. ex. en sélection ou simultanément l'organe de commande étant manœuvré de différentes manières indépendantes, chacune de ces manœuvres individuelles entraînant un seul organe commandé dans lesquels la manœuvre de l'organe de commande peut être effectuée de plusieurs manières simultanément l'organe de commande étant manœuvré à la main autour d'axes orthogonaux, p. ex. manches à balai
80.
REDUCTION OF CURRENT RIPPLE DUE TO MOSFET SWITCHING DELAYS IN PWM-BASED DRIVES
The subject matter of this specification can be embodied in, among other things, a method that includes receiving a first electrical current output setpoint, identifying a first operational condition based on the first electrical current output setpoint, providing, based on the identified first operational condition, a first pulse width modulated (PWM) signal having a first predetermined duty cycle, based on the first electrical current output setpoint, provided on a predetermined period, receiving a second electrical current output setpoint, identifying a second operational condition different from the first operational condition based on the second electrical current output setpoint, and providing, based on the identified second operational condition, a second PWM signal having a second predetermined duty cycle, based on the second electrical current output setpoint, provided on a predetermined multiple of the predetermined period.
H02P 7/29 - Dispositions pour réguler ou commander la vitesse ou le couple de moteurs électriques à courant continu pour réguler ou commander individuellement un moteur dynamo-électrique à courant continu en faisant varier le champ ou le courant d'induit par commande maîtresse avec puissance auxiliaire utilisant des tubes à décharge ou des dispositifs à semi-conducteurs utilisant des dispositifs à semi-conducteurs commandant l'alimentation de l'induit seulement utilisant la modulation d'impulsions
H02P 6/28 - Dispositions pour la commande du courant
The subject matter of this specification can be embodied in, among other things, a control apparatus includes a first mounting member, a pivot member defining an axis, an elongate member configured to pivot about the axis and having a first elongate portion configured as a first lever arm extending away from the pivot member in a first direction, a second elongate portion extending away from the pivot member in a second direction opposite the first direction, a retainer bracket affixed to the second elongate portion, a gimbal moveably affixed to the first mounting member between the pivot member and the retainer bracket, a force bracket moveably affixed to the second elongate portion by the retainer bracket, and a bias member configured to urge movement of the force bracket in the second direction.
G05G 9/047 - Mécanismes de commande manuelle équipés d'un seul organe de commande travaillant avec plusieurs organes commandés, p. ex. en sélection ou simultanément l'organe de commande étant manœuvré de différentes manières indépendantes, chacune de ces manœuvres individuelles entraînant un seul organe commandé dans lesquels la manœuvre de l'organe de commande peut être effectuée de plusieurs manières simultanément l'organe de commande étant manœuvré à la main autour d'axes orthogonaux, p. ex. manches à balai
G05G 5/05 - Moyens pour faire revenir ou tendant à faire revenir les organes de commande vers une position de repos ou une position neutre, p. ex. en prévoyant des ressorts de retour ou des butées de fin de course élastiques
The subject matter of this specification can be embodied in, among other things, a heat exchanger module that includes a tubular housing, a first fluid conduit, a second fluid conduit, fluidically isolated from the first fluid conduit, a thermal conductor configured to convey heat energy between the first fluid conduit and the second fluid conduit, a first fluid connector assembly, the first fluid connector assembly having a first fluid port fluidically connected to the first fluid conduit, and a second fluid port fluidically connected to the second fluid conduit, and a second fluid connector assembly, the second fluid connector assembly having a third fluid port fluidically connected to the first fluid conduit, and a fourth fluid port fluidically connected to the second fluid conduit.
F28D 7/10 - Appareils échangeurs de chaleur comportant des ensembles de canalisations tubulaires fixes pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation les canalisations étant disposées l'une dans l'autre, p. ex. concentriquement
F28F 13/02 - Dispositions pour modifier le transfert de chaleur, p. ex. accroissement, diminution en influençant la couche limite
The subject matter of this specification can be embodied in, among other things, a heat exchanger module that includes a tubular housing, a first fluid conduit, a second fluid conduit, fluidically isolated from the first fluid conduit, a thermal conductor configured to convey heat energy between the first fluid conduit and the second fluid conduit, a first fluid connector assembly, the first fluid connector assembly having a first fluid port fluidically connected to the first fluid conduit, and a second fluid port fluidically connected to the second fluid conduit, and a second fluid connector assembly, the second fluid connector assembly having a third fluid port fluidically connected to the first fluid conduit, and a fourth fluid port fluidically connected to the second fluid conduit.
F28D 7/10 - Appareils échangeurs de chaleur comportant des ensembles de canalisations tubulaires fixes pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation les canalisations étant disposées l'une dans l'autre, p. ex. concentriquement
F28F 9/26 - Dispositions pour raccorder des sections différentes des éléments d'échangeurs de chaleur, p. ex. de radiateur
An inline variable sonic valve is provided that includes a housing defining an inlet and an outlet positioned inline along a gas flow axis. A contoured metering plug is fixed within the housing and a diverging sleeve is movably positioned within the housing downstream of the contoured metering plug. An actuator is positioned offline from the gas flow axis and is configured to move the diverging sleeve within the housing relative to the contoured metering plug fixed therein to vary a gas metering area defined between the contoured metering plug and the diverging sleeve. The actuator may be hydraulic, fueldraulic, pneumatic, or electric, and may drive the diverging sleeve discretely to an open or a closed position, or to a variable position between the open and closed position when a position senor is included to meter the flow therethrough.
An inline variable sonic valve (100) is provided that includes a housing (118, 132) defining an inlet and an outlet positioned inline along a gas flow axis. A contoured metering plug (114) is fixed within the housing and a diverging sleeve (116) is movably positioned within the housing downstream of the contoured metering plug. An actuator is positioned offline from the gas flow axis and is configured to move the diverging sleeve within the housing relative to the contoured metering plug fixed therein to vary a gas metering area defined between the contoured metering plug and the diverging sleeve. The actuator may be hydraulic, fueldraulic, pneumatic, or electric, and may drive the diverging sleeve discretely to an open or a closed position, or to a variable position between the open and closed position when a position senor is included to meter the flow therethrough.
F16K 1/12 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation à corps de soupape profilé autour duquel le fluide s'écoule quand la soupape est ouverte
The subject matter of this specification can be embodied in, among other things, a fluid actuator system including a fluid actuator having a housing having an inner wall defining an interior cavity, a piston having a piston head configured for reciprocal movement within the interior cavity, the piston head contacting the inner wall and dividing the interior cavity into a first fluid chamber and a second fluid chamber, a first valve configured to control fluid flow between the first fluid chamber and a bypass conduit, and a second valve configured to control fluid flow between the bypass conduit and the second fluid chamber.
F15B 11/024 - Systèmes comportant essentiellement des moyens particuliers pour commander la vitesse ou la puissance d'un organe de sortie au moyen d'une liaison différentielle des circuits du servomoteur, p. ex. circuits à récupération de fluide
F15B 15/14 - Dispositifs actionnés par fluides pour déplacer un organe d'une position à une autreTransmission associée à ces dispositifs caractérisés par la structure de l'ensemble moteur le moteur étant du type à cylindre droit
F15B 19/00 - Test des systèmes ou appareils de manœuvre utilisant la pression d'un fluide, dans la mesure où ils ne sont pas prévus ailleurs
F15B 20/00 - Dispositions propres à la sécurité pour systèmes de manœuvre utilisant les fluidesUtilisation des dispositifs de sécurité dans les systèmes de manœuvre utilisant des fluidesMesures d'urgence pour les systèmes de manœuvre utilisant des fluides
87.
On-line verifiable trip and throttle valve actuator
The subject matter of this specification can be embodied in, among other things, a fluid actuator system including a fluid actuator having a housing having an inner wall defining an interior cavity, a piston having a piston head configured for reciprocal movement within the interior cavity, the piston head contacting the inner wall and dividing the interior cavity into a first fluid chamber and a second fluid chamber, a first valve configured to control fluid flow between the first fluid chamber and a bypass conduit, and a second valve configured to control fluid flow between the bypass conduit and the second fluid chamber.
F01D 21/18 - Modificateur instantané utilisant des dispositifs hydrauliques
F01D 17/26 - Dispositifs utilisant des éléments sensibles ou des organes de commande terminaux ou les organes de liaison entre les deux, p. ex. commande assistée l'énergie de fonctionnement ou de puissance assistée étant essentiellement non mécanique à fluide, p. ex. hydraulique
F15B 15/14 - Dispositifs actionnés par fluides pour déplacer un organe d'une position à une autreTransmission associée à ces dispositifs caractérisés par la structure de l'ensemble moteur le moteur étant du type à cylindre droit
The subject matter of this specification can be embodied in, among other things, a method that includes controlling, by a first fluid valve, a first fluid flow to a first fluid actuator, actuating, by the first fluid actuator, an output, controlling, by a second fluid valve, a second fluid flow to a second fluid actuator, and actuating, by the second fluid actuator, the output.
F15B 18/00 - Disposition en parallèle de systèmes de servomoteurs indépendants
B64C 13/42 - Dispositifs de transmission avec amplification de puissance utilisant la pression d'un fluide comportant des dispositifs de doublement de la commande ou de mise en position de secours
F15B 11/22 - Synchronisation du mouvement de plusieurs servomoteurs
F15B 13/043 - Dispositifs de distribution ou d'alimentation du fluide caractérisés par leur adaptation à la commande de servomoteurs pour utilisation avec un servomoteur unique actionnés par la pression du fluide avec clapets-pilotes commandés électriquement
F15B 13/04 - Dispositifs de distribution ou d'alimentation du fluide caractérisés par leur adaptation à la commande de servomoteurs pour utilisation avec un servomoteur unique
F15B 20/00 - Dispositions propres à la sécurité pour systèmes de manœuvre utilisant les fluidesUtilisation des dispositifs de sécurité dans les systèmes de manœuvre utilisant des fluidesMesures d'urgence pour les systèmes de manœuvre utilisant des fluides
F15B 21/08 - Systèmes de servomoteur comportant des moyens de commande actionnés électriquement
F15B 15/14 - Dispositifs actionnés par fluides pour déplacer un organe d'une position à une autreTransmission associée à ces dispositifs caractérisés par la structure de l'ensemble moteur le moteur étant du type à cylindre droit
The subject matter of this specification can be embodied in, among other things, a method that includes controlling, by a first fluid valve, a first fluid flow to a first fluid actuator, actuating, by the first fluid actuator, an output, controlling, by a second fluid valve, a second fluid flow to a second fluid actuator, and actuating, by the second fluid actuator, the output.
A fuel nozzle metering valve that includes a spool having an inlet port and an outlet flow port, and a retainer assembled to one end of the spool. A valve liner houses a portion of the spool. The spool is configured to move back and forth within the valve liner. The metering valve is biased in a closed position in which the outlet flow port is disposed entirely within the valve liner. The valve is opened when the spool slides within the valve liner such that some portion of the outlet flow port extends beyond an end of the valve liner. The retainer has a stepped portion configured to abut an end of the retainer at a fuel flow pressure below the expected maximum fuel flow pressure to be used in the fuel nozzle metering valve.
F16K 15/06 - Soupapes, clapets ou valves de retenue à corps de soupapes rigides guidés par tige-guide
B67D 7/36 - Aménagements des vannes de commande du débit ou de la pression
F02C 9/26 - Commande de l'alimentation en combustible
F16K 15/04 - Soupapes, clapets ou valves de retenue à corps de soupapes rigides guidés en forme de sphère
F16K 17/04 - Soupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage ouvrant sur excès de pression d'un côtéSoupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage fermant sur insuffisance de pression d'un côté actionnés par ressort
F16K 17/30 - Soupapes ou clapets limiteurs de débit fonctionnant par différence de pression entre deux points de l'écoulement et agissant directement sur l'élément d'obturation dans un sens uniquement sous l'action d'un ressort
F16K 17/34 - Soupapes ou clapets limiteurs de débit dans lesquels l'énergie provenant du courant du fluide actionne le mécanisme de fermeture
F16K 47/00 - Moyens incorporés aux soupapes pour absorber l'énergie d'un fluide
F16K 47/02 - Moyens incorporés aux soupapes pour absorber l'énergie d'un fluide pour empêcher les coups de bélier ou le bruit
F23R 3/28 - Chambres de combustion à combustion continue utilisant des combustibles liquides ou gazeux caractérisées par l'alimentation en combustible
A cable-linked brake pedal (106) assembly (100) for an airplane. The assembly (100) includes a first cable assembly (200) with a first end attached to a pilot-side brake pedal (106) and a second end attached to a first bell crank assembly (300), and a second cable assembly (200) with a first end attached to a copilot-side brake pedal (106) and a second end attached to a second bell crank assembly (300). A first connecting rod (112) with a first rod end is attached to the first bell crank assembly (300) and a second rod end is attached to the second bell crank assembly (300). The connection between the first and second cable assemblies, first and second bell crank assemblies (130, 134), and first connecting rod (112) is configured such that depressing the pilot-side brake pedal (106) moves the first cable assembly (200), first connecting rod (112), and second cable assembly (200) in such a way as to cause a corresponding depression of the copilot-side brake pedal (106).
B60T 11/04 - Transmission de l'action de freinage entre l'organe d'attaque et les organes terminaux d'action, dans laquelle la transmission n'est ni assistée ni à relais de puissance ou dans laquelle une telle assistance ou un tel relais ne sont pas essentiels mécanique
A hydrogen fuel cell anode control system including a hydrogen inlet configured to receive pressurized hydrogen, a hydrogen outlet configured to be fluid ically coupled to an anode manifold of a hydrogen fuel cell, a recirculation inlet configured to receive overflow hydrogen from the anode manifold, a hydrogen pressure regulator configured to receive pressurized hydrogen from the hydrogen inlet, a hydrogen recirculation module configured to mix hydrogen received from the hydrogen pressure regulator and the recirculation inlet, and provide a hydrogen mixture to the hydrogen outlet, a differential pressure measurement module configured to measure a differential pressure between the anode manifold and a cathode manifold of the hydrogen fuel cell, and a controller configured to control at least one of the hydrogen pressure regulator or the hydrogen recirculation module based on the measured differential pressure.
H01M 8/04089 - Dispositions pour la commande des paramètres des réactifs, p. ex. de la pression ou de la concentration des réactifs gazeux
H01M 8/04119 - Dispositions pour la commande des paramètres des réactifs, p. ex. de la pression ou de la concentration des réactifs gazeux avec apport simultané ou évacuation simultanée d’électrolyteHumidification ou déshumidification
The subject matter of this specification can be embodied in, among other things, a hydrogen fuel cell anode control system including a hydrogen inlet configured to receive pressurized hydrogen, a hydrogen outlet configured to be fluidically coupled to an anode manifold of a hydrogen fuel cell, a recirculation inlet configured to receive overflow hydrogen from the anode manifold, a hydrogen pressure regulator configured to receive pressurized hydrogen from the hydrogen inlet, a hydrogen recirculation module configured to mix hydrogen received from the hydrogen pressure regulator and the recirculation inlet, and provide a hydrogen mixture to the hydrogen outlet, a differential pressure measurement module configured to measure a differential pressure between the anode manifold and a cathode manifold of the hydrogen fuel cell, and a controller configured to control at least one of the hydrogen pressure regulator or the hydrogen recirculation module based on the measured differential pressure.
System designed to compensate for flow disturbances when changing a flow rate in the system, the system including a flow source device (12) having an inlet and an outlet. The inlet is configured to receive fluid at a first pressure, and the outlet is configured to output the fluid at a second pressure that is higher than the first pressure. The system also includes a fluid control device (20) having an inlet port (30) and a drain port (34). The inlet port of the fluid control device is configured to receive flow from the outlet of the flow source device. Further, the system includes a constant flow regulator (68) configured to provide a leakage flow to a drain output (69). The constant flow regulator is configured to decrease the leakage flow in response to the drain port of the fluid control device.
F02C 7/22 - Systèmes d'alimentation en combustible
F01D 17/26 - Dispositifs utilisant des éléments sensibles ou des organes de commande terminaux ou les organes de liaison entre les deux, p. ex. commande assistée l'énergie de fonctionnement ou de puissance assistée étant essentiellement non mécanique à fluide, p. ex. hydraulique
F02C 9/36 - Commande de l'alimentation en combustible caractérisée par un retour du combustible au réservoir
A flame arrestor screw for a solenoid operated gas valve. The flame arrestor screw may include a screw body having a closed end and an open end. The flame arrestor screw may include a gas passage extending from the open end along a longitudinal axis of the screw body and terminating at a terminal end within the screw body. A through hole may extend through the screw body transverse to the gas passage and in fluid communication with the gas passage.
F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
The subject matter of this specification can be embodied in, among other things, an actuator that includes a piston configured to actuate relative to a housing, a sensor rod configured to be actuated by the piston, a sensor affixed to the housing and configured to detect a piston position of the piston relative to the housing based on a sensor rod position of the sensor rod relative to the sensor, and a linkage configured to couple the sensor rod to the piston, and to offset a change to the sensor rod position due to a temperature-induced dimensional change to at least one of the housing, piston, the sensor rod, and the sensor.
F15B 15/14 - Dispositifs actionnés par fluides pour déplacer un organe d'une position à une autreTransmission associée à ces dispositifs caractérisés par la structure de l'ensemble moteur le moteur étant du type à cylindre droit
F15B 15/28 - Moyens pour indiquer la position, p. ex. fin de course
F15B 19/00 - Test des systèmes ou appareils de manœuvre utilisant la pression d'un fluide, dans la mesure où ils ne sont pas prévus ailleurs
G01D 5/22 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension en faisant varier l'inductance, p. ex. une armature mobile influençant deux bobines par une action différentielle
G01D 11/30 - Supports spécialement adaptés à un instrumentSupports spécialement adaptés à un ensemble d'instruments
A flame arrestor screw for a solenoid operated gas admission valve. The flame arrestor screw may include a screw body having a first end and an open end. The flame arrestor screw may include a gas passage extending from the open end along a longitudinal axis of the screw body and terminating at a terminal end within the screw body. A through hole may extend through the screw body transverse to the gas passage and in fluid communication with the gas passage.
A62C 4/02 - Pièges à flammes permettant le passage du gaz et non pas celui de la flamme ou de l'onde détonante dans les conduites de gaz
F16K 17/36 - Soupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage fonctionnant sous l'action de circonstances extérieures, p. ex. un choc, un changement de position
G01M 3/04 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite
The subject matter of this specification can be embodied in, among other things, an actuator that includes a piston configured to actuate relative to a housing, a sensor rod configured to be actuated by the piston, a sensor affixed to the housing and configured to detect a piston position of the piston relative to the housing based on a sensor rod position of the sensor rod relative to the sensor, and a linkage configured to couple the sensor rod to the piston, and to offset a change to the sensor rod position due to a temperature-induced dimensional change to at least one of the housing, piston, the sensor rod, and the sensor.
F15B 15/28 - Moyens pour indiquer la position, p. ex. fin de course
G01D 5/20 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension en faisant varier l'inductance, p. ex. une armature mobile
Embodiments of the disclosure relate to a system designed to compensate for flow disturbances when changing a flow rate in the system. The system includes a flow source device having an inlet and an outlet. The inlet is configured to receive fluid at a first pressure, and the outlet is configured to output the fluid at a second pressure that is higher than the first pressure. The system also includes a fluid control device having an inlet port and a drain port. The inlet port of the fluid control device is configured to receive flow from the outlet of the flow source device. Further, the system includes a constant flow regulator configured to provide a leakage flow to a drain output. The constant flow regulator is configured to decrease the leakage flow in response to the drain port of the fluid control device.
F16K 11/07 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des tiroirs à éléments de fermeture glissant linéairement à glissières cylindriques
F15B 13/04 - Dispositifs de distribution ou d'alimentation du fluide caractérisés par leur adaptation à la commande de servomoteurs pour utilisation avec un servomoteur unique
The subject matter of this specification can be embodied in, among other things, a method performed in connection with an internal combustion engine, and the method including receiving a pressure signal from a combustion chamber pressure sensor during a first range of volumes, the first range corresponding to a portion of a compression phase, the received pressure being a first pressure, providing, based on the received pressure signal, a first pulse of fuel at a first position of the body during the compression phase, and providing, based on the received pressure signal a second pulse of fuel at a second position of the body during the compression phase.
F02D 41/00 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants
F01N 3/10 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour rendre les gaz d'échappement inoffensifs par conversion thermique ou catalytique des composants nocifs des gaz d'échappement
F02D 41/40 - Commande de l'injection de combustible du type à haute pression avec des moyens pour commander la synchronisation ou la durée de l'injection
F02D 41/38 - Commande de l'injection de combustible du type à haute pression
