A vessel mounting system for a vehicle includes a first flexible strap configured to circumscribe the vessel in a first direction, a second flexible strap configured to circumscribe the vessel in a second direction such that the second flexible strap and the first flexible strap overlap in at least one location, a strap mating coupler securing the first flexible strap to the second flexible at the at least one location, and at least one coupling device connected to the first flexible strap configured to mate with a structure on the vehicle. Each of the first flexible strap and the second flexible strap includes a plurality of clamp sleeves connected in an end-to-end manner.
A62C 31/28 - Accessoires pour dispositifs de jet, p. ex. supports
A62C 3/08 - Prévention, limitation ou extinction des incendies spécialement adaptées pour des objets ou des endroits particuliers dans les véhicules, p. ex. les véhicules routiers dans les avions
A passive filter assembly can include a filter bowl configured to enclose a filter element therein, a fluid inlet in fluid communication with the filter bowl, a fluid outlet in fluid communication with the filter bowl downstream of the fluid inlet, and a filter cap disposed gravitationally below the filter bowl and configured to receive denser fluid components separated from a bulk fluid when the denser fluid components fall into the filter cap. The filter bowl can be shaped to allow the bulk fluid to swirl therein. The fluid inlet can be configured to cause the bulk fluid entering through the fluid inlet to swirl within the filter bowl to be centrifuged to separate one or more denser fluid components from the bulk fluid. The fluid outlet can be configured to receive a filtered flow downstream of a filter element.
H02M 7/44 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques
H02P 27/00 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation
H02P 29/024 - Détection d’un défaut, p. ex. court circuit, rotor bloqué, circuit ouvert ou perte de charge
4.
DATA REFRESH CYCLE FOR ASYNCHRONOUS DEVICE COMMUNICATION
An aircraft power system for power a plurality of loads of an aircraft includes a first secondary power distribution assembly (SPDA) network configured to manage electrical power delivered to a first load among the plurality of loads, and a second SPDA network configured to manage electrical power delivered to a second load among the plurality of loads. The aircraft power system further includes a synthetic load management system (SLMS) in signal communication with the first SPDA and the second SPDA. The SLMS is configured to reference at least one operational condition of the aircraft and historical data corresponding to the first load and the second load. The SLMS is configured to predict load demands of the of the first load and the second load operating at different operating conditions based on the historical data.
Thermal management systems include a vapor cycle and a liquid cycle sharing a common working fluid. The vapor cycle includes, along a vapor cycle flow path, a compressor and a condenser. The liquid cycle includes, along a liquid cycle flow path, a fluid driver, a load, a regulator valve, and a phase change material heat exchanger. A cold sink is thermally coupled to a heat load. A separator is configured to separate liquid and vapor portions of the working fluid and direct the liquid into the liquid cycle and the vapor into the vapor cycle. The separator is part of both the vapor cycle and the liquid cycle. The regulator valve controls a temperature of the working fluid within the liquid cycle at a location upstream of the phase change material heat exchanger to control a mode of operation of the phase change material heat exchanger.
F25B 43/04 - Dispositions pour la séparation ou la purification des gaz ou des liquidesDispositions pour la vaporisation des résidus de fluides frigorigènes, p. ex. par la chaleur pour l'évacuation des gaz non condensables
F25B 13/00 - Machines, installations ou systèmes à compression, à cycle réversible
A heat exchanger includes an outer shell enclosing an interior space. An inlet extends through the outer shell and is in fluidic communication with the interior space. An outlet extends through the outer shell and is in fluidic communication with the interior space. At least one phase change element is inside the interior space and includes a core comprising a phase change material.
F28D 15/00 - Appareils échangeurs de chaleur dans lesquels l'agent intermédiaire de transfert de chaleur en tubes fermés passe dans ou à travers les parois des canalisations
F28F 21/06 - Structure des appareils échangeurs de chaleur caractérisée par l'emploi de matériaux spécifiés de matériau plastique
F28F 23/00 - Caractéristiques relatives à l'utilisation de matériaux servant pour échange intermédiaire de chaleur, p. ex. emploi de compositions spécifiées
In accordance with at least one aspect of this disclosure, a system includes, a collection arm configured to collect an aerosol sample from a cloud and a detection module operatively connected to the collection arm configured to analyze a composition of the sample from the cloud. In certain embodiments, one or more of the collection arm and/or the detection module can be configured to couple to a mobile platform, including for example, a land vehicle, aircraft, or watercraft. In certain embodiments one or more of the collection arm and/or the detection module can be configured to couple to a stationary structure, for example a building
Testing a gasket within a groove formed around a top of an enclosure and covered by a lid, including steps of: positioning a needle of a probe within a notch formed in an outer wall that surrounds the groove; and: injecting input current through the probe; comparing input voltage from the probe in the notch and an output voltage induced in conductive fasteners that secure the lid to the enclosure, to determine that a difference in the voltages is within a predetermined range, where voltage at the fasteners is measured with another probe; or injecting the input current into the fasteners; and comparing the input voltage at the fasteners with the output voltage induced in the gasket and measured via the probe in the notch, to determine that the difference in the voltages is within the predetermined range, where voltage at the fasteners is measured with the another probe.
A hold open rod has a control sleeve, an outer cylinder, lock balls, a lock sleeve, a piston, a piston head, a release spring, and a lock spring. The control sleeve has first and second cavity sections, an inner radial surface, a CS channel, and a pin. The outer cylinder has an OC inner cavity, OC inner and outer radial surfaces, an OC axial end wall, lock ball apertures, and a pin guide slot. The lock balls are configured to pass through the lock ball apertures. The piston has first and second sections. The piston head has an outer radial surface, a channel, and a piston bore. The piston bore is configured to receive the first section of the piston. The release spring biases the control sleeve toward a first axial end. The lock spring biases the lock sleeve toward a second axial end.
B64D 29/06 - Fixation des nacelles, carénages ou capotages
E05C 17/30 - Dispositifs pour tenir les battants dans une position d'ouvertureDispositifs pour limiter l'ouverture des battants ou pour tenir les battants dans une position d'ouverture par une pièce mobile disposée entre le battant et le dormantDispositifs de freinage, butées ou tampons combinés avec ces dispositifs par des moyens mécaniques par une barre mobile ou une pièce équivalente disposée entre le dormant et le battant de structure extensible, p. ex. télescopique
A method for controlling a fuel system for a gas turbine engine is disclosed. The method includes directing fuel from an outlet of a main pump to an inlet of a fuel oil cooler. Fuel is directed from an outlet of the fuel oil cooler to a fuel control. The fuel control is in fluidic communication with a burner of the gas turbine engine. Fuel is directed from the outlet of the main pump to the fuel control through a fuel-oil-cooler bypass valve whenever an augmentor pump of the fuel system is actively pumping fuel to an augmentor of the gas turbine engine. The fuel-oil-cooler bypass valve forms a bypass flow path around the fuel oil cooler.
A nut for use in an actuator assembly having a rotatable screw includes an outer nut portion and an inner nut portion removably coupled to the outer nut portion. The inner nut portion is rotatably couplable to the rotatable screw. At least one antirotation pin is positionable between the outer nut portion and the inner nut portion to restrict rotation of the inner nut portion relative to the outer nut portion.
F16B 39/28 - Blocage des vis, boulons ou écrous dans lequel le verrouillage se fait en même temps que le vissage ou le serrage par organes particuliers portés par l'écrou ou le boulon ou par la forme particulière de ceux-ci
An ion generator includes a high voltage source, a body defining a central axis, and multiple arms extending from the body. The body has a primary conductive line electrically coupled to the high voltage source, and a first insulating covering surrounding the primary conductive line. Each arm has an emitter array and a secondary conductive line. The emitter array is disposed at a distal end of the arm relative to the body. The secondary conductive line is electrically coupled to the primary conductive line at a proximal end of the arm relative to the body and extends to the emitter array. The arms are distributed about the central axis, such that the orientations of the emitter arrays and the connection of each arm to the central body are distributed helically, spirally, or symmetrically with respect to other arms, relative to the central axis.
An aircraft air supply system for generating pressurized air includes a compressor configured to receive and pressurize a flow of outside air, a turbine operatively coupled to the compressor by a shaft and configured to drive the compressor, a fluid pathway fluidly connecting the compressor to an environmental control system pack, an outflow pathway fluidly connecting a cabin of the aircraft to the turbine, a surge relief pathway fluidly connecting the compressor to the outflow pathway and the turbine, and a surge relief valve disposed within the surge relief pathway. In a first operational state, the surge relief valve is open to allow a flow of surge relief air to flow from the compressor to the outflow pathway via the surge relief pathway, the surge relief air further flowing through the turbine.
B64D 13/02 - Aménagements ou adaptations des appareils de conditionnement d'air pour équipages d'aéronefs, passagers ou pour emplacements réservés au fret l'air étant pressurisé
B64D 13/06 - Aménagements ou adaptations des appareils de conditionnement d'air pour équipages d'aéronefs, passagers ou pour emplacements réservés au fret l'air étant climatisé
B64D 13/08 - Aménagements ou adaptations des appareils de conditionnement d'air pour équipages d'aéronefs, passagers ou pour emplacements réservés au fret l'air étant climatisé l'air étant réchauffé ou refroidi
15.
Gear pump with suction housing element providing a tight seal between suction and high-pressure chamber to increase pump efficiency and method of providing tight seal
A gear pump includes a pump housing, a two meshed with a driven gear, a suction housing, and a suction cavity. The suction housing includes a body portion having first and second sealing disposed adjacent to outer diameters of the gears. A suction chamber wall is disposed between the first and second sealing surfaces and a sealing land is adjacent to a planar running surface of the pump housing. A flange of the suction housing has a third sealing surface disposed in contact with gear faces of the gears. The suction cavity is open to the inlet and defined in part by the suction chamber wall.
F04C 27/00 - Systèmes d'étanchéité dans les pompes à piston rotatif spécialement adaptées pour les fluides compressibles
F04C 18/18 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à formes de dents semblables
Circuit card assemblies may include an enclosure, first and second circuit boards installed, and a standoff for mounting the first and second circuit boards within the enclosure. The standoff includes a support body extending between the first and second circuit boards and has a first end and a second end. The first end is proximate the first circuit board and the second end is proximate the second circuit board. A threaded portion extends from the first end and passes through an aperture of the first circuit board. An internal bore is defined within the support body and includes an opening at the second end of the support body. A sleeve extends from the second end of the support body and has an opening aligned with the opening of the internal bore. The sleeve extends into an aperture of the second circuit board with a support shelf defined around the sleeve.
A system supplying air to an ASM of an aircraft inerting system, having: a first compressor, a turbine and a motor-generator coupled to each other; a second compressor coupled to the turbine and ASM; a first flow-path receiving cabin air and having: a first branch coupled to the first compressor; and a second branch coupled to the turbine, the motor-generator operates in a generator mode when pressure in the first flow-path is above a threshold; a second flow-path coupled between the first compressor and second compressor; a third flow-path coupled between the second compressor, a fuel tank and ASM; a first heat exchanger coupled to the second branch of the first flow-path to heat flow through the second branch before providing it to the turbine; and a second heat exchanger coupled to the second flow-path between the first compressor and second compressor to cool the flow through the second flow-path.
B64D 13/06 - Aménagements ou adaptations des appareils de conditionnement d'air pour équipages d'aéronefs, passagers ou pour emplacements réservés au fret l'air étant climatisé
B64D 37/32 - Mesures de sécurité non prévues ailleurs, p. ex. contre les explosions
In accordance with at least one aspect of this disclosure, a modular valve system includes, at least a first valve. The first valve can be configured to connect to one or more additional valves. The first valve includes, a first housing having a first inlet and a first outlet with a cylindrical flow path through the housing defined between the first inlet and the first outlet along a flow axis, where a diametral plane is defined diametrically spanning the cylindrical flow path.
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 27/02 - Structures des logementsMatériaux utilisés à cet effet des soupapes de levage
F16K 31/46 - Moyens mécaniques d'actionnement pour un fonctionnement à distance
In accordance with at least one aspect of this disclosure, a limiting system for defining a rotational limit of a valve disc of a butterfly valve can include, a crank configured to be disposed on a terminal end of a valve shaft and configured to connect to a drive linkage to drive the crank and rotation of the valve disc. The crank can include a crank arm extending radially outward from the shaft. The crank stop can be configured to contact a portion of the second connecting flange of the first valve to physically limit rotation of the crank and the valve disc within a predefined rotational quadrant.
F16K 31/52 - Moyens mécaniques d'actionnement à manivelle, excentrique ou came
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
In accordance with at least one aspect of this disclosure, a retaining clip system for retaining an alignment of a valve disc within a valve housing can include, a c-shaped retaining clip configured to be disposed on a shaft of the valve and a shim pack including a plurality of shims configure to axially bound the retaining clip on the shaft.
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
21.
MULTIPLEXED BI DIRECTIONAL CONVERTERS FOR HYBRID ELECTRIC AIRCRAFT PROPULSION
A system includes a low pressure machine, a high pressure machine, a motor controller device, a first set of switches configured to selectively couple the low pressure machine to an inverter or a rectifier included in the motor controller device, based on a control signal, and a second set of switches configured to selectively couple the high pressure machine to the inverter or the rectifier, based on the control signal.
A LLC voltage converter for converting a DC input voltage to a DC output voltage. The LLC voltage converter includes: a transformer having an input winding and an output winding, a controller and a current sensor. The current sensor measures a primary current through the input winding of the transformer and provides a measurement of the primary current to the controller. The controller determines when a secondary current, through the output winding of the transformer, is substantially zero based on the measurement of the primary current and a maximum value of the primary current.
H02M 3/00 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu
H02M 1/00 - Détails d'appareils pour transformation
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
A heat exchange fin pack includes a plurality of rows of channel sections, each row comprising a plurality of adjacent legs, with each pair of adjacent legs connected to each other by, alternately, an upper crest part and a lower peak part. The legs and the upper crest part or the lower peak part define therebetween a channel section for fluid flow therethrough. The channel sections of each row are offset in a direction substantially transverse to the direction of flow from the adjacent channel sections of adjacent rows, thus forming a lanced offset fin pack in which the channel sections of adjacent rows combine to form staggered flow channels. Each channel section is formed to have a region of restricted diameter compared to another or other regions of that channel section.
F28F 3/02 - Éléments ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p. ex. avec des ailettes, avec des évidements, avec des ondulations
A cooling structure for a rotary electric machine, the structure includes an annular radiator body defining an axis X between a first end and a second end, the annular body having a radially inner wall and a radially outer wall and a plurality of channels defined between the radially inner wall and the radially outer wall. Each channels extends from the first end to the second end, each channel having a radially varying profile along the length of the channel to interrupt the linear flow of fluid along the channel and to cause continuous changes in flow direction as the fluid flows from one end of the channel to the other.
H02K 5/20 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des canaux ou des conduits pour la circulation d'un agent de refroidissement
B33Y 80/00 - Produits obtenus par fabrication additive
B64D 27/30 - Aéronefs caractérisés par des groupes moteurs électriques
A system includes: a first electrical machine; a motor controller device coupled to the first electrical machine, wherein the motor controller device is configured to convert first power generated by the first electrical machine or provide second power to the first electrical machine; and a set of coupling devices configured to mechanically couple or decouple the first electrical machine and a turbine engine based on a mode of the system. The set of coupling devices includes: a first gearbox coupled to the first electrical machine; a first coupling device between the first gearbox and the turbine engine; a second gearbox; a second coupling device between the second gearbox and the turbine engine; and a third coupling device between the first gearbox and the second gearbox.
H02K 11/30 - Association structurelle à des circuits de commande ou à des circuits d’entraînement
F02C 7/36 - Transmission de puissance entre les différents arbres de l'ensemble fonctionnel de turbine à gaz, ou entre ce dernier et l'utilisateur de puissance
H02K 7/116 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des engrenages
H02K 7/18 - Association structurelle de génératrices électriques à des moteurs mécaniques d'entraînement, p. ex. à des turbines
26.
CAPACITOR VOLTAGE BALANCING CONTROL TECHNIQUE OF MULTI-LEVEL MULTI-CHANNEL DRIVES
A power converter for providing power to one or more loads. The power converter is configured to be arranged in a parallel configuration with one or more additional power converters. The converter includes: a load balancing controller configured to receive an input voltage demand and output a compensated output voltage demand; an inverter for receiving an input voltage and converting this to an output voltage having an associated output current, the inverter comprising at least two DC-link capacitors; and a module configured to modulate the output voltage using a modulation scheme based on the compensated output voltage demand. The load balancing controller comprises a first feedback circuit configured to generate a first signal, wherein the first signal is generated based on a first measurement/calculation of the output current of the inverter scaled by a first gain.
H02M 1/00 - Détails d'appareils pour transformation
H02M 7/44 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques
27.
COMPRESSOR OIL RECOVERY IN HYBRID VCC PUMPED TWO PHASE LOOPS
A cooling system includes a liquid loop, a vapor compression loop, and a heat exchanger in fluid communication with each of the liquid loop and the vapor compression cycle loop. The liquid loop includes a cold sink for cooling a heat load. The vapor compression cycle loop is fluidly coupled to the liquid loop by a separator, which is configured to separate a two-phase form of a working fluid received from the cold sink into a vapor form of the working fluid and a liquid form of the working fluid.
F25B 43/02 - Dispositions pour la séparation ou la purification des gaz ou des liquidesDispositions pour la vaporisation des résidus de fluides frigorigènes, p. ex. par la chaleur pour la séparation des lubrifiants du frigorigène
F25B 1/04 - Machines, installations ou systèmes à compression à cycle irréversible à compresseur rotatif
28.
THERMAL MANAGEMENT SYSTEM FOR FUTURE VERTICAL LIFT AIRCRAFT
A thermal management system for an aircraft includes a liquid loop, a vapor compression cycle loop, and an air loop. The liquid loop includes a pump to deliver a working fluid a cold sink for cooling a heat load with the working fluid. The vapor compression cycle loop is fluidly coupled to the liquid loop by a separator. The separator is configured to separate a two-phase form of the working fluid into a vapor form of the working fluid for delivery to a compressor of the vapor compression cycle loop and a liquid form of the working fluid for delivery to the liquid loop. The air loop in thermal communication with the working fluid and configured to provide a cooling or heating air for an aircraft cabin.
B64D 13/06 - Aménagements ou adaptations des appareils de conditionnement d'air pour équipages d'aéronefs, passagers ou pour emplacements réservés au fret l'air étant climatisé
A power generation system for an aircraft. The system includes an auxiliary power unit (APU), an APU generator mechanically linked to the APU, a generator control unit controllably coupled to the APU and an electromagnetic windmilling brake connected to APU generator. The electromagnetic windmilling brake includes a number of switched phase connections equal to a number of phases and the switched phase connections are configured to connect each output phase to an adjacent phase.
B64D 33/00 - Aménagement sur les aéronefs des éléments ou des auxiliaires des ensembles fonctionnels de propulsion, non prévu ailleurs
H02K 7/106 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des freins dynamo-électriques
H02K 7/18 - Association structurelle de génératrices électriques à des moteurs mécaniques d'entraînement, p. ex. à des turbines
H02K 11/00 - Association structurelle de machines dynamo-électriques à des organes électriques ou à des dispositifs de blindage, de surveillance ou de protection
H02K 11/20 - Association structurelle de machines dynamo-électriques à des organes électriques ou à des dispositifs de blindage, de surveillance ou de protection pour la mesure, la surveillance, les tests, la protection ou la coupure
System and associated methods relate to detecting and responding to hydrogen leakage in an aircraft. The system includes a hydrogen tank and a fuel pipeline surrounded by an enclosed chamber. The system further includes one or more vacuum pumps fluidly coupled to the enclosed chamber to create the control volume vacuum. The system further includes vacuum sensors mounted within the control volume vacuum, configured to sense a vacuum pressure value. The system further includes hydrogen detectors fluidly connected downstream of the one or more vacuum pumps, configured to sense the hydrogen concentration of the exhaust from the one or more vacuum pumps. The system further includes a controller and an emergency vacuum. The controller is configured to evaluate whether an emergency hydrogen leak condition exists based upon the vacuum pressure value and the hydrogen concentration. The controller can then open a valve to operate emergency vacuum if necessary.
A system includes a cap configured to attach to a first end of a pneumatic disconnect shaft assembly, the cap configured to seal a pneumatic chamber in a pneumatic mode and configured to allow access to the pneumatic chamber in a manual mode for manual rotation of a decoupling shaft. A method for manual rotation of a pneumatic disconnect shaft assembly includes removing a bolt from a cap that seals a pneumatic chamber of the pneumatic disconnect shaft assembly and rotating the cap about a longitudinal axis of a decoupling shaft to rotate the decoupling shaft, camming one or more locking pistons out of one or more grooves in the decoupling shaft.
A stator core is provided and includes laminations disposed in a laminated arrangement to form a stator core body having an axial length extending in a lamination dimension. The stator core body includes an annular portion extending along the axial length, teeth extending radially from the annular portion and along the axial length and fins. Each tooth is formed to define one or more holes running along the axial length. The fins extend circumferentially across each of the one or more holes.
H02K 1/20 - Parties fixes du circuit magnétique avec des canaux ou des conduits pour l'écoulement d'un agent de refroidissement
H02K 1/278 - Aimants montés en surfaceAimants sertis
H02K 21/14 - Moteurs synchrones à aimants permanentsGénératrices synchrones à aimants permanents avec des induits fixes et des aimants tournants avec des aimants tournant à l'intérieur des induits
A high voltage contact control system includes main contacts on positive and negative feeder lines and a short circuit protection system configured between the positive feeder line and the negative feeder line. The short circuit protection system is configured to be operably connected between the positive and negative feeder lines and configured to selectively provide a bypass path between the positive feeder line and the negative feeder line to divert current away from the first and second contacts. The short circuit protection system includes first and second state arc prevention elements that can operate in at least two modes. The bypass path is established by having one of the arc prevention elements in a fully on mode and another either fully on or in a linear mode.
H01H 85/02 - Dispositifs de protection dans lesquels le courant circule à travers un organe en matière fusible et est interrompu par déplacement de la matière fusible lorsqu'il devient excessif Détails
H01H 39/00 - Dispositifs de commutation actionnés par une explosion produite à l'intérieur du dispositif et amorcée par un courant électrique
34.
BURST MODE IN-RUSH CURRENT CONTROL FOR ACTIVE CURRENT LIMITER CIRCUIT FOR DC-DC CONVERTER
A Direct Current (DC)-DC converter includes an input capacitor connected across a positive input terminal and a return input terminal. A current limiter includes a reference threshold portion connected across the positive input terminal and the return input terminal and a reference node. A difference amplifier circuit includes connections to the positive input terminal and to the return input terminal. The difference amplifier circuit generates a feedback output dependent on a voltage differential between the positive input terminal and the return input terminal. A comparison logic circuit receives the feedback output as a first comparison input and voltage of the reference node as a second comparison input and generates a comparison output. An active current limiting portion includes a current limiting transistor connected to at least one of the positive input terminal or the return input terminal and limits a current on one of the positive and return input terminals.
H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
A power converter for use with a fan engine of an aircraft comprises an electric-motor interface for electrical connection to an electric motor configured to be mechanically coupled to a driveshaft of the fan engine. The converter includes an inverting electric-motor power stage, having a DC side and an AC side, wherein the AC side of the electric-motor power stage is electrically coupled to the electric-motor interface. It comprises a thrust-reverser interface for electrical connection to an electric actuator of the fan engine for actuating a thrust reverser surface of the fan engine, and an inverting thrust-reverser power stage, having a DC side and an AC side, wherein the AC side of the thrust-reverser power stage is electrically coupled to the thrust-reverser interface.
B64D 27/35 - Aménagements pour la production, la distribution, la récupération ou le stockage d'énergie électrique à bord
H02M 1/44 - Circuits ou dispositions pour corriger les interférences électromagnétiques dans les convertisseurs ou les onduleurs
H02M 7/797 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continuTransformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif avec possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
A system for providing power to one or more loads. The system includes: a central controller configured to output a speed demand for one or more loads; and a plurality of power converters arranged in a parallel configuration with each other and configured to provide power to the one or more loads. Each power converter includes a speed control loop configured to calculate a local current demand based at least in part on an output speed error between the speed demand of the one or more loads and a measured speed of the one or more loads; a torque/current control loop configured to calculate an output voltage demand based at least in part on the local current demand of its respective speed control loop; and a module configured to modulate the output voltage of an inverter based on the output voltage demand from the torque/current control loop.
H02P 4/00 - Dispositions spécialement adaptées à la régulation ou la commande de la vitesse ou du couple de moteurs électriques qui peuvent être connectés à au moins deux alimentations électriques différentes
H02P 27/08 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs avec modulation de largeur d'impulsions
An electrical connector for an aircraft power system includes: a first electrical contact; a second electrical contact; a housing; and a fixing element, the fixing element extending through the first electrical contact and the second electrical contact to connect the first electrical contact to the second electrical contact, wherein the housing surrounds the first electrical contact and the second electrical contact, the housing comprising electrical insulation to electrically insulate the first and second electrical contacts from an exterior of the housing.
H01R 13/533 - Socles ou boîtiers conçus pour l'emploi dans des conditions extrêmes, p. ex. haute température, rayonnements, vibrations, environnement corrosif, pression
H01R 4/34 - Conducteurs logés sous la tête d'une vis
H01R 13/502 - SoclesBoîtiers composés de différentes pièces
A heat exchanger having: an upstream header; a downstream header; a core extending from an upstream end at the upstream header to a downstream end at the downstream header, wherein the core includes tubes arranged in a square matrix that defines rows of tubes arranged in a row direction and columns of the tubes arranged in a column direction that is normal to the row direction, each of the tubes defining an upstream end and a downstream end that are spaced apart from each other in a longitudinal direction, and an outer boundary of the core is defined by outer ones of the tubes, wherein each of the tubes is longitudinally divided into tube segments; and tube connectors extending between the tube segments and interconnecting longitudinally and diagonally adjacent ones of the tube segments to stiffen the core.
F28D 1/053 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes pour une seule des sources de potentiel calorifique, les deux sources étant en contact chacune avec un côté de la paroi de la canalisation, dans lesquels l'autre source de potentiel calorifique est une grande masse de fluide, p. ex. radiateurs domestiques ou de moteur de voiture avec des canalisations d'échange de chaleur immergées dans la masse du fluide avec canalisations tubulaires les canalisations étant rectilignes
B33Y 80/00 - Produits obtenus par fabrication additive
F28D 1/02 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes pour une seule des sources de potentiel calorifique, les deux sources étant en contact chacune avec un côté de la paroi de la canalisation, dans lesquels l'autre source de potentiel calorifique est une grande masse de fluide, p. ex. radiateurs domestiques ou de moteur de voiture avec des canalisations d'échange de chaleur immergées dans la masse du fluide
F28F 9/02 - Boîtes de distributionPlaques d'extrémité
A motion indicator includes a housing and a plunger extending from a first housing end of the housing and axially movable relative to the housing. The plunger is biased into an axially extended position via a plunger biasing element, and is configured to detect motion of a component adjacent to a plunger tip. A push button is located at a second housing end of the housing and is axially moveable relative to the housing. The push button is biased toward an axially extended position via a biasing element. A retaining assembly is configured to retain the push button in an axially retracted position. The retaining assembly is configured to release the push button and allow the button biasing element to urge the push button toward the axially extended position when the plunger is urged toward a retracted position via motion of the component adjacent to the plunger tip.
B64C 13/00 - Systèmes de commande ou systèmes de transmission pour actionner les gouvernes, les volets hypersustentateurs, les aérofreins ou les destructeurs de portance (spoilers)
B64C 13/28 - Dispositifs de transmission sans amplification de puissance ou dans les cas où l'amplification de puissance est sans objet mécaniques
B64D 45/00 - Indicateurs ou dispositifs de protection d'aéronefs, non prévus ailleurs
H01H 9/16 - Indicateurs de position, p. ex. "marche" ou "arrêt"
A method of detecting electrical arc damage includes receiving input indicative of electrical power as a function of time in an electrical arc. The method includes using the input to model an amount of damage caused by the electrical arc, and comparing the amount of damage to a predetermined threshold. The method includes flagging a warning in response to the amount of damage exceeding a predetermined threshold. The method can include breaking a circuit to stop the electrical arc. Flagging the warning can include signaling to an operator to inspect a unit potentially damaged by the electrical arc. The method can include inspecting the unit potentially damaged by the electrical arc.
G06F 30/27 - Optimisation, vérification ou simulation de l’objet conçu utilisant l’apprentissage automatique, p. ex. l’intelligence artificielle, les réseaux neuronaux, les machines à support de vecteur [MSV] ou l’apprentissage d’un modèle
A single stage servo valve assembly includes a drive assembly and a valve body assembly. The valve body assembly defines a valve body extending along a valve body axis (X) between a first valve body end and a second valve body end, a supply port, a control port and a return port formed through the valve body each defining a respective fluid flow channel, having a fluid flow axis, providing fluid communication between an interior of the valve body and an exterior of the valve body. The drive assembly operates to control the flow of fluid between the supply port, the control port and the return port, via the interior of the valve body, in response to an electric command signal; wherein a first nozzle is located in the valve body between the supply port and the control port and a second nozzle is located between the ports.
F16K 31/124 - Moyens de fonctionnementDispositifs de retour à la position de repos actionnés par un fluide le fluide agissant sur un piston servo-commandé
A flex spline for a strain wave drive, the flex spline comprising: a flexible tubular body (110) having a first open end (221) and a second open end (222); a first set of radially outwardly extending teeth around its outer periphery at the first open end; a second set of radially outwardly extending teeth around its outer periphery at the second open end; and a third set of radially inwardly outwardly teeth located axially between the first and the second sets of teeth; and wherein the body further comprises one or more sections of changed geometry located between the first and second sets of teeth and/or the second and third sets of teeth, the sections of changed geometry being provided with a geometric feature in the flex spline body that is not present in the remainder of the flex spline body.
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
F16C 19/50 - Autres types de roulements à billes ou à rouleaux
F16H 1/00 - Transmissions à engrenages pour transmettre un mouvement rotatif
A system includes a first electrohydraulic servo valve (EHSV) configured to be in fluid communication with a pressure supply and with a pressure return. The first EHSV includes a first actuator extend line and a first actuator retract line. A second EHSV is configured to be in fluid communication with the pressure supply and with the pressure return. The second EHSV includes a second actuator extend line and a second actuator retract line. An actuator includes an extend chamber in fluid communication with both of the first and second extend actuator lines, and a retract chamber in fluid communication with both of the first and second retract actuator lines for extending an end effector when the first and second EHSVs pressurize the extend chamber, and for retracting the end effector when the first and second EHSVs pressurize the retract chamber.
F15B 18/00 - Disposition en parallèle de systèmes de servomoteurs indépendants
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
44.
TUNABLE INDUCTOR AND METHODS TO REALIZE TUNABLE INDUCTOR
A tunable inductor is provided including a core having a closed shape and including first through third legs. A first winding wound around the first leg is coupled to a first controller configured to provide DC power to the first winding. The first winding is configured to generate a DC flux in a DC flux path in response to the DC power, the DC flux path passing through a first magnetoelectric material coupled to the core. A second winding wound around the second leg is coupled to the first controller and is configured to generate the DC flux in response to the DC power. A third leg between the first leg and the second leg is coupled to an AC power source configured to provide AC power to the third winding. The third winding is configured to generate AC flux in an AC flux path based on the AC power.
H01F 29/02 - Transformateurs ou inductances variables non couverts par le groupe avec prises sur les bobines ou les enroulementsTransformateurs ou inductances variables non couverts par le groupe avec possibilités de regroupement ou d'interconnexion des enroulements
An engine start system for an aircraft includes a first variable frequency start generator (VFSG) including a first exciter and a first stator, a second VFSG including a second exciter and a second stator, a first motor controller and a second motor controller, and a switching system. The switching system is configured to operatively connect the first motor controller to the first stator or the second exciter and operatively connect the second motor controller to the first exciter or the second stator. In a first mode of operation, the first motor controller is operatively connected to the second exciter, the second motor controller is operatively connected to the second stator, the first VFSG generates power, the first motor controller provides a first controlled voltage and frequency to the second exciter, and the second motor controller provides a second controlled voltage and frequency to the second stator.
B64D 33/00 - Aménagement sur les aéronefs des éléments ou des auxiliaires des ensembles fonctionnels de propulsion, non prévu ailleurs
H02P 5/74 - Dispositions spécialement adaptées à la régulation ou la commande de la vitesse ou du couple d’au moins deux moteurs électriques pour commander au moins deux moteurs dynamo-électriques à courant alternatif
A heat exchanger includes a heat exchanger body having a plurality of heat exchanger tubes, an inlet manifold connected to the heat exchanger body and configured to distribute a flow of fluid from a fluid inlet of the inlet manifold to the plurality of heat exchanger tubes, and an outlet manifold connected to the heat exchanger body and configured to collect the flow of fluid from the plurality of heat exchanger tubes and direct the flow of fluid through a fluid outlet. The heat exchanger body is formed via one or more additive manufacturing processes, and at least one of the inlet manifold and the outlet manifold is formed via one or more subtractive manufacturing processes.
F28D 1/053 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes pour une seule des sources de potentiel calorifique, les deux sources étant en contact chacune avec un côté de la paroi de la canalisation, dans lesquels l'autre source de potentiel calorifique est une grande masse de fluide, p. ex. radiateurs domestiques ou de moteur de voiture avec des canalisations d'échange de chaleur immergées dans la masse du fluide avec canalisations tubulaires les canalisations étant rectilignes
B33Y 80/00 - Produits obtenus par fabrication additive
F28F 9/02 - Boîtes de distributionPlaques d'extrémité
A heat exchanger includes a plurality of heat exchanger plates stacked along a stacking axis defining a plurality of first pathways through which a first fluid is directed, and a plurality of fins located between adjacent first pathways of the plurality of first pathways. The plurality of fins at least partially define a plurality of second pathways through which a second fluid is directed. The heat exchanger plates are formed from a sheet material, and the plurality of fins are formed from one or more additive manufacturing processes.
F28F 3/04 - Éléments ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p. ex. avec des ailettes, avec des évidements, avec des ondulations les moyens faisant partie intégrante de l'élément
A LLC voltage converter for converting a DC input voltage to a DC output voltage includes a transformer, a controller and a current sensor. The current sensor provides a measurement of the current through a first winding of a transformer to the controller. The controller determines a parameter relating to an output current of the LLC voltage converter using the current measurement. The controller also receives a parameter relating to an output current of at least one other LLC voltage converter, configured in parallel with the LLC voltage converter. The controller is arranged to control the LLC voltage converter based on both the parameter relating to the output current of the LLC voltage converter and the parameter relating to the output current of the other LLC voltage converter.
H02M 3/00 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
49.
Single variable displacement fuel systems with fuel oil coolers
A system includes an actuation pump sub-system (APS) with an inlet configured to feed fuel from a fuel source into the APS, a first outlet configured for connecting the APS in fluid communication with an actuation system to supply fuel flow for actuation, a second outlet feeding into a supply line, and a third outlet feeding into the supply line. A fuel oil cooler (FOC) is included in a first branch of the supply line. The FOC is in fluid communication to receive flow from the second outlet. The APS includes a bypass valve (BPV) in a second branch of the supply line, in parallel with the FOC and in fluid communication to allow flow from the third outlet into the supply line bypassing the FOC. A main pump and control sub-system has a main inlet connected in fluid communication with the supply line downstream of the BPV and FOC.
Life support systems include a pressure garment, a helmet, and a life support system enclosure that define an enclosed environment. The life support system includes one or more life support components to generate breathable gas within the enclosed environment. The gas is directed along a closed-loop flow path through the system. The life support components includes a fan for driving a flow of the gas through the closed-loop flow path and an acoustic damper arranged along the flow path and to reduce noise generated by the fan. The acoustic damper includes a housing defining an annular cavity arranged about a portion of the flow path, with the housing having a solid exterior surface and an inner diameter surface with openings to fluidly connect the flow path with the annular cavity and at least one acoustic damping element arranged within the annular cavity.
F02C 7/045 - Entrées d'air pour ensembles fonctionnels de turbines à gaz ou de propulsion par réaction comportant des dispositifs destinés à supprimer le bruit
51.
COLD START INDUCTION HEATING AND BRAKING ARRANGEMENT
A drive system for an aircraft. The drive system includes a controller, a motor coupled to an H-bridge network, a DC link that can be coupled to the motor; and an electrical braking system configured to be electrically coupled to the motor. The electrical braking system includes: a sense circuit configured to sense a condition of the DC link; a brake resistor coupled to the DC link; a temperature sensor; a drive circuit coupled to the sense circuit; and a coil for breaking in an inductive braking mode or generating heat in a cold start mode, wherein the coil is located in or near a line replaceable unit chassis that includes printed circuit boards.
In accordance with at least one aspect of this disclosure, a system includes a first wire configured to electrically connect a valve stop to a voltage source, a second wire configured to connect a valve pin to a negative terminal of the voltage source, such that the valve stop, and a valve flap operatively connected to the valve pin are configured to create a closed valve circuit when the valve flap is in a fully open position with the valve flap contacting the valve stop, and an open valve circuit when the valve flap is not in the fully open position. A meter is operatively connected to measure an electrical characteristic of the valve circuit to determine when the valve flap is in the fully open position based on an open/closed status of the valve circuit.
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
F16K 15/03 - Soupapes, clapets ou valves de retenue à corps de soupapes rigides guidés et élément de fermeture à charnière
An AC/DC converter can include an alternating current (AC) source configured to output AC, one or more AC lines electrically connected to the AC source to conduct the AC, a conversion circuit operatively electrically connected to the one or more AC lines to receive AC, one or more filter inductors electrically connected to at least one of the one or more AC lines, and an inductance control system operatively connected to the one or more filter inductors to modify the inductance of the one or more filter inductors. A DC/DC converter can include a direct current (DC) source configured to output DC, one or more DC lines electrically connected to the DC source to conduct the DC, a non-resonant DC/DC conversion circuit operatively electrically connected to the one or more DC lines to receive DC, one or more filter inductors electrically connected to at least one of the one or more DC lines, and an inductance control system operatively connected to the one or more filter inductors to modify the inductance of the one or more filter inductors to maintain a constant switching frequency while maintaining soft switching of the one or more switches independent of variations in the DC and/or a load connected to the non-resonant DC/DC conversion circuit. The non-resonant DC/DC conversion circuit can be configured for DC/DC conversion. The non-resonant DC/DC conversion circuit can include one or more switches configured to be controlled for DC/DC conversion.
H02M 7/79 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continuTransformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif avec possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande
H02M 1/12 - Dispositions de réduction des harmoniques d'une entrée ou d'une sortie en courant alternatif
A check valve assembly includes a valve body having a first end and a second end, the valve body extending along an axis (X) from the first end to the second end; a check valve outlet is located between the first and the second end; an actuator port provided in the check valve body at a location axially between the outlet and the second end, for fluid connection, in use, to a pump actuator. The valve body further includes a fluid inlet via which the check valve is, in use, connected to a fluid tank, the fluid inlet being provided in the valve body towards the second end, axially between the actuator port and the second end.
A system an analog to digital converter (ADC) operatively connected to receive an analog input signal from an input line and to output a digital input signal. A processor is operatively connected to receive the digital input signal from the ADC and to output a digital control signal for controlling a physical system based on the digital input signal. A digital to analog converter (DAC) is operatively connected to receive a copy of the digital input signal put out from the processor, and to output an analog output signal indicative of the copy of the digital input signal put out from the processor. Comparison logic is operatively connected to receive the analog input signal from the input line, to receive the analog output signal from the DAC, and to output an error signal in response to a mismatch between the analog input signal and the analog output signal.
Circuit card assemblies may include an enclosure, first and second circuit boards installed, and a standoff for mounting the first and second circuit boards within the enclosure. The standoff includes a support body extending between the first and second circuit boards and has a first end and a second end. The first end is proximate the first circuit board and the second end is proximate the second circuit board. A threaded portion extends from the first end and passes through an aperture of the first circuit board. An internal bore is defined within the support body and includes an opening at the second end of the support body. A sleeve extends from the second end of the support body and has an opening aligned with the opening of the internal bore. The sleeve extends into an aperture of the second circuit board with a support shelf defined around the sleeve.
A voltage monitor for a fly-back circuit. The circuit includes a voltage source, a transformer comprising a primary winding electrically coupled to the voltage source and a secondary winding electrically coupled to a load, a diode connected between the secondary winding and the load, a switch electrically coupled to the primary winding and a controller operable to open and close the switch to control energy transfer from the primary winding to tire secondary winding. The voltage monitor is connected to a node between the secondary winding and tire diode that generates an output signal that is a toggling output when the voltage source is operating above an input voltage threshold and a constant output when the voltage source is operating below the input voltage threshold.
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
H02M 3/156 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation
58.
INPUT ISOLATED VOLTAGE MONITOR WITH VOLTAGE TRACKING
A fly-back circuit includes a voltage source, a transformer comprising a primary winding electrically coupled to the voltage source and a secondary winding electrically coupled to a load, a diode connected between the secondary winding and the load, a switch electrically coupled to the primary winding, a controller operable to open and close the switch to control energy transfer from the primary winding to the secondary winding; and a voltage monitor connected to a node between the secondary winding and the diode. Tire voltage monitor includes a processor that generates a variable threshold tracking voltage (Vthtracking), generates an output signal that is a toggling output when voltage at the node is above Vthtracking and a constant output when the voltage source is operating below Vthtracking and increases Vthtracking when the output signal is toggling until the output signal is not toggling.
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
H02M 3/28 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire
59.
HIGH VOLTAGE DC CONTACTOR ISOLATION VIA ELECTROMECHANICAL ACTUATION
A high voltage DC contactor control system. The system reduces/eliminates arcing in in contactors and includes a short circuit protection system operably connected to the drive voltage configured to reducing arcing between portions of the contactor. The short circuit protection system includes a first arc prevention element and a first arc prevention driver configured to cause the first arc prevention element to be disposed between the first and second portions of the first contactor to prevent arcing between them.
A method is disclosed for controlling an atmosphere within an aircraft. The method includes sensing, by at least one cabin occupancy sensor, a number of empty seats within a cabin of the aircraft. Data representative of the number of empty seats from the at least one cabin occupancy sensor is communicated by the at least one cabin occupancy sensor to an electronic controller. The electronic controller is in communication with a cabin air circulation system and an environmental control system. The electronic controller sends a flow command to the environmental control system and the cabin air circulation system to adjust a rate of an air inflow into the cabin based on the number of empty seats sensed by the at least one cabin occupancy sensor.
B64D 13/08 - Aménagements ou adaptations des appareils de conditionnement d'air pour équipages d'aéronefs, passagers ou pour emplacements réservés au fret l'air étant climatisé l'air étant réchauffé ou refroidi
B64D 13/06 - Aménagements ou adaptations des appareils de conditionnement d'air pour équipages d'aéronefs, passagers ou pour emplacements réservés au fret l'air étant climatisé
61.
MID-PRESSURE WATER SEPARATION FOR ENVIRONMENTAL CONTROL SYSTEM
A water separator for use in an environmental control system of an aircraft includes a coalescing channel having a curved housing. The coalescing channel has a hollow interior. A coalescing insert is arranged within the hollow interior of the coalescing channel. The coalescing insert has an upstream end, a downstream end, and plurality of fluidly distinct flow channels extending between the upstream end and the downstream end such that the plurality of fluidly distinct flow channels receive a flow of medium in parallel.
B01D 45/08 - Séparation de particules dispersées dans des gaz ou des vapeurs par gravité, inertie ou force centrifuge par inertie par projection contre les diaphragmes séparateurs
F25B 9/00 - Machines, installations ou systèmes à compression dans lesquels le fluide frigorigène est l'air ou un autre gaz à point d'ébullition peu élevé
F25B 9/06 - Machines, installations ou systèmes à compression dans lesquels le fluide frigorigène est l'air ou un autre gaz à point d'ébullition peu élevé utilisant des détendeurs
F25B 43/00 - Dispositions pour la séparation ou la purification des gaz ou des liquidesDispositions pour la vaporisation des résidus de fluides frigorigènes, p. ex. par la chaleur
A ram air turbine system of an aircraft includes a ram air turbine selectably movable between a stowed position and an extended position at an aircraft, and a retraction mechanism operably connected to the ram air turbine and configured to selectably move the ram air turbine from the extended position toward the stowed position. A stow panel is separate from the aircraft and is selectably connectible to the retraction mechanism. The stow panel is configured to signal the retraction mechanism to initiate movement of the ram air turbine from the extended position.
An aircraft sensing system includes a power and communications module, a sensor module in optical communication with the power and communications module, the sensor module being disposed in an at least partially enclosed space within the aircraft, and at least one gas sensor in communication with the sensor module, the at least one gas sensor being disposed in the at least partially enclosed space. The at least one gas sensor is configured to sense at least one flammable gas species or non-flammable gas species, and the sensor module and the at least one gas sensor are galvanically isolated from the power and communications module.
A fuel tank system is disclosed. The fuel tank system includes a fuel tank and a detection system associated with the fuel tank. The detection system includes a source device emitting light into the fuel tank and an analysis device. The analysis device includes a collection device capturing scattered light resulting from the emitted light interacting with fuel in the fuel tank and providing an optical signal corresponding to the captured scattered light. The analysis device includes an optical detection device converting the optical signal to an electronic signal representative of properties of the captured scattered light and a computing device. In one or more embodiments, the computing device generates, based on the electronic signal, data including an indication of: a presence or absence of one or more contaminants in the fuel tank, a type of the one or more contaminants, and location information of the fuel and contaminants.
An assembly for detecting agglomeration of a powder for a fire suppression system includes a vessel configured to contain a powder and a compressed gas and a plurality of piezoelectric sensors disposed in the vessel. At least one sensor of the plurality of sensors is disposed at an interface of the powder and the compressed gas when the vessel is in a filled state.
A valve system includes a valve body defining an inlet, an outlet, and a flow path connecting the inlet in fluid communication with the outlet through one or more flow paths through the valve body. A poppet is slidingly engaged to the valve body for movement along an axis, between a first position allowing flow though the flow path, and a second position blocking flow the flow path. An electrical circuit makes a path through the valve body. A controller is operatively connected to the electrical circuit, configured to monitor electrical resistance of the electrical circuit and to output a signal indicative of open or closed state of the valve based on whether electrical resistance of the electrical circuit is at a first level or at a second level.
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
F16K 27/02 - Structures des logementsMatériaux utilisés à cet effet des soupapes de levage
67.
KIDNEY PORT CONFIGURATIONS IN PORT PLATES FOR BALANCED VANES
A vane pump system includes a kidney port plate engaged at an axial end of a rotor and liner. The port kidney plate includes an over vane inlet port configured to be circumferentially aligned with an inlet arc segment of a circumferential cam surface of the liner for ingress of fluid to a plurality of vanes, and an over vane discharge port configured to be circumferentially aligned with a discharge arc segment of the circumferential cam surface for discharging pressurized fluid from the plurality of vanes. The kidney port plate includes at least six kidney ports radially inward from the over vane inlet port and the over vane discharge port. The kidney ports are circumferentially spaced apart from one another. The kidney ports are configured to be radially aligned with vane slots of the rotor for pressure balancing across over vane and under vane ends of the plurality of vanes.
F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p. ex. caractéristiques de structure de l'admission ou de l'échappement
F04C 2/344 - Machines ou pompes à piston rotatif possédant les caractéristiques couvertes par au moins deux des groupes , , , ou par l'un de ces groupes en combinaison avec un autre type de mouvement entre les organes coopérants avec à la fois le mouvement défini dans l'un des groupes ou et un mouvement alternatif relatif entre les organes coopérants les organes obturateurs ayant un mouvement alternatif par rapport à l'organe interne
F04C 18/344 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles possédant les caractéristiques couvertes par au moins deux des groupes , , , , ou par l'un de ces groupes en combinaison avec un autre type de mouvement entre les organes coopérants ayant à la fois le mouvement défini dans l'un des groupes ou et un mouvement alternatif relatif entre les organes coopérants les organes obturateurs ayant un mouvement alternatif par rapport à l'organe interne
A capacitive system includes a module circuit card assembly including a first modular keying and alignment mechanism and a second modular keying and alignment mechanism. The first and second modular keying and alignment mechanisms are configured for mechanical alignment and electrical connection with a backplane circuit card assembly (CCA). A capacitor is mounted to the module circuit card assembly and is electrically connected to each of the first and second modular keying and alignment mechanisms through a charge/discharge circuit. The circuit is configured to: charge the capacitor with the module circuit card assembly connected to the backplane CCA, discharge the capacitor with the module circuit card assembly connected to the backplane CCA for providing backup power, and discharge the capacitor through a bleed resistor of the circuit upon disconnection of the module circuit card assembly from the backplane CCA.
H02J 7/34 - Fonctionnement en parallèle, dans des réseaux, de batteries avec d'autres sources à courant continu, p. ex. batterie tampon
H01R 12/73 - Dispositifs de couplage pour circuits imprimés rigides ou structures similaires se couplant avec la bordure des circuits imprimés rigides ou des structures similaires se raccordant à d'autres circuits imprimés rigides ou à des structures similaires
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
An impeller includes a cylindrical portion defining a fluid inlet, the cylindrical portion coaxial with a rotational axis of the impeller, a hub, a shroud extending downward and radially away from the cylindrical portion and covering the hub, a plurality of vanes extending between the shroud and the hub, a fluid outlet downstream of the plurality of vanes, a plurality of doors disposed circumferentially about the cylindrical portion proximate the inlet, and a spring element attached to and disposed between each of the plurality of doors and the cylindrical portion. Each of the plurality of doors is actuatable, via the spring element, between a first state and a second state.
F01D 17/14 - Organes de commande terminaux disposés sur des parties du stator faisant varier l'aire effective de la section transversale des injecteurs ou tuyères de guidage
F01D 5/22 - Connections aube à aube, p. ex. par emboîtement
F01D 5/28 - Emploi de matériaux spécifiésMesures contre l'érosion ou la corrosion
An impeller includes a cylindrical portion defining a fluid inlet, the cylindrical portion coaxial with a rotational axis of the impeller, a hub, a shroud extending downward and radially away from the cylindrical portion and covering the hub, a first plurality of vanes extending between the shroud and the hub, and an extension portion disposed between the shroud and the hub and downstream of the first plurality of vanes. The extension portion includes an outer ring, and inner ring, and a second plurality of vanes extending between the outer ring and the inner ring.
An automated minimum equipment list (MEL) system for an aircraft can include a control module operatively connected to a plurality of aircraft components. The control module can be configured to receive information relating to the plurality of aircraft components, and determine that one or more inoperative components exist in the plurality of aircraft components based on the information relating to the plurality of aircraft components. The control module can be configured to automatically determine whether one or more MEL dispatch conditions exist based on a stored MEL and the one or more inoperative components. The control module can be configured to control at least one of the plurality of aircraft components to configure the plurality of aircraft components to comply with at least one MEL dispatch condition if one or more MEL dispatch conditions exist to allow the aircraft to dispatch with the one or more inoperative components.
In accordance with at least one aspect of this disclosure, a system includes, an alignment comb configured to prevent rotation of a contact pin of a connector relative to the connector. In embodiments, the alignment comb can be of a non-electrically conductive material. In embodiments, the alignment comb includes, a planar portion extending along a longitudinal axis between a first end and a second end, an aperture defined in the planar portion, and a slot defined at least partially within the planar portion. Embodiments of the slots within the alignment comb allow the comb to slide along the first and second respective contact pins such that the alignment comb can be lifted to allow for application of a conformal coating on the contact pins and/or to allow soldering the contact pins to a printed wiring board.
H01R 43/20 - Appareils ou procédés spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation de connecteurs de lignes ou de collecteurs de courant ou pour relier les conducteurs électriques pour assembler les pièces de contact avec le socle isolant, le boîtier ou le manchon ou pour les en désassembler
H01R 12/71 - Dispositifs de couplage pour circuits imprimés rigides ou structures similaires
73.
AIRCRAFT COMPONENT ADDITIVELY HAVING THERMALLY ADAPTIVE MATERIAL AND A THERMOELECTRIC JUNCTION
A device, having: a base having an outer boundary and a plurality of base voids, formed from a first material having a first coefficient of thermal expansion (CTE); beads that line ones of the base voids, formed from a second material having a second CTE that differs from the first CTE, wherein each of the beads has a bead void; and a thermoelectric junction around the outer boundary, or within one or more of the bead voids.
F03G 7/06 - Mécanismes produisant une puissance mécanique, non prévus ailleurs ou utilisant une source d'énergie non prévue ailleurs utilisant la dilatation ou la contraction des corps produites par le chauffage, le refroidissement, l'humidification, le séchage ou par des phénomènes similaires
B64C 9/24 - Surfaces ou éléments de commande réglables, p. ex. gouvernes de direction formant des fentes à l'avant de l'aile par volet unique
B64C 13/40 - Dispositifs de transmission avec amplification de puissance utilisant la pression d'un fluide
74.
COMPRESSOR SHROUD WITH CONTROLLABLE BYPASS COMPONENT FORMED OF THERMALLY ADAPTIVE MATERIALS AND A THERMOELECTRIC JUNCTION
A compressor case having a composition gradient defining a first coefficient of thermal expansion and a second coefficient of thermal expansion that differs from the first coefficient of thermal expansion; and a thermoelectric junction operationally coupled to the composition gradient, wherein the composition gradient is formed of either of a plurality of dissimilar metals or of plastic with fillings or fibers.
F04D 27/00 - Commande, p. ex. régulation, des pompes, des installations ou des systèmes de pompage spécialement adaptés aux fluides compressibles
H10N 10/10 - Dispositifs thermoélectriques comportant une jonction de matériaux différents, c.-à-d. dispositifs présentant l'effet Seebeck ou l'effet Peltier fonctionnant exclusivement par les effets Peltier ou Seebeck
An actuator having a composition gradient defining a first coefficient of thermal expansion and a second coefficient of thermal expansion that differs from the first coefficient of thermal expansion; and a thermoelectric junction operationally coupled to the composition gradient, wherein the composition gradient is formed of either of a plurality of dissimilar metals or of plastic with fillings or fibers.
H02N 10/00 - Moteurs électriques utilisant des effets thermiques
F03G 7/06 - Mécanismes produisant une puissance mécanique, non prévus ailleurs ou utilisant une source d'énergie non prévue ailleurs utilisant la dilatation ou la contraction des corps produites par le chauffage, le refroidissement, l'humidification, le séchage ou par des phénomènes similaires
76.
AIRFOIL FORMED OF THERMALLY ADAPTIVE MATERIALS AND A THERMOELECTRIC JUNCTION
An airfoil having: a composition gradient defining a first coefficient of thermal expansion and a second coefficient of thermal expansion that differs from the first coefficient of thermal expansion; and a thermoelectric junction operationally coupled to the composition gradient, wherein the composition gradient is formed of either of a plurality of dissimilar metals or of plastic with fillings or fibers.
A locking device having: a composition gradient defining a first coefficient of thermal expansion and a second coefficient of thermal expansion that differs from the first coefficient of thermal expansion; and a thermoelectric junction operationally coupled to the composition gradient, wherein the composition gradient is formed of either of a plurality of dissimilar metals or of plastic with fillings or fibers.
A flow control device, having: a flow tube extending between upstream and downstream, and a neck region between the first and second ends, wherein the flow tube includes: a wall defining an outer boundary and extending longitudinally from a first end to a second end and transversely from a first side to a second side, wherein: the wall is nonmetal; the wall defines: a first segment extending longitudinally between the first and second ends and transversely from the first side to a segment junction; and a second segment extending longitudinally between the first and second ends and transversely from the second side to the segment junction; and the first segment has a first coefficient of thermal expansion (CTE) and the second segment has a second CTE that differs from the first CTE, to define a transverse CTE gradient.
A compressor assembly is provided and includes a fluid pathway, a compressor disposed and configured to compress fluid flowing along the fluid pathway and a motor configured to drive operations of the compressor. The motor includes one or more hybrid airfoil bearings to support the shaft within a housing. Each of the one or more hybrid airfoil bearings includes airfoil bearing components including a top foil immediately surrounding the shaft and additional components and passive magnetic bearing components integrated into the shaft and the additional components of the airfoil bearing components to remove a static load of the shaft on the top foil.
A flow control device having: a composition gradient defining a first coefficient of thermal expansion and a second coefficient of thermal expansion that differs from the first coefficient of thermal expansion; and a thermoelectric junction operationally coupled to the composition gradient, wherein the composition gradient is formed of either of a plurality of dissimilar metals or of plastic with fillings or fibers.
F03G 7/06 - Mécanismes produisant une puissance mécanique, non prévus ailleurs ou utilisant une source d'énergie non prévue ailleurs utilisant la dilatation ou la contraction des corps produites par le chauffage, le refroidissement, l'humidification, le séchage ou par des phénomènes similaires
B64C 9/24 - Surfaces ou éléments de commande réglables, p. ex. gouvernes de direction formant des fentes à l'avant de l'aile par volet unique
B64C 13/40 - Dispositifs de transmission avec amplification de puissance utilisant la pression d'un fluide
81.
ACTUATOR FORMED OF THERMALLY ADAPTIVE MATERIAL AND A THERMOELECTRIC JUNCTION
An actuator, having: an actuator body extending between an actuator top and an actuator bottom, a top actuator support located at the actuator top and a bottom actuator support located at the actuator bottom, wherein the actuator body includes: a wall defining an outer boundary and extending longitudinally from a first end to a second end and transversely from a first side to a second side, wherein: the wall is nonmetal; the wall defines: a first segment extending longitudinally between the first and second ends and transversely from the first side to a segment junction; and a second segment extending longitudinally between the first and second ends and transversely from the second side to the segment junction; and the first segment has a first coefficient of thermal expansion (CTE) and the second segment has a second CTE that differs from the first CTE, to define a transverse CTE gradient.
H10N 10/817 - Détails structurels de la jonction la jonction étant inamovible, p. ex. obtenue par cémentation, frittage ou soudage
H10N 10/13 - Dispositifs thermoélectriques comportant une jonction de matériaux différents, c.-à-d. dispositifs présentant l'effet Seebeck ou l'effet Peltier fonctionnant exclusivement par les effets Peltier ou Seebeck caractérisés par les moyens d'échange de chaleur à la jonction
82.
AIR CYCLE MACHINE (ACM) WITH HYBRID AIRFOIL AND AUXILIARY MAGNETIC THRUST BEARINGS
A hybrid airfoil thrust bearing is provided for a shaft including a thrust disc that rotates with the shaft. The hybrid airfoil thrust bearing includes airfoil bearing components and passive magnetic bearing components. The hybrid airfoil bearing components include a first top foil immediately adjacent to a first side of the thrust disc and surrounding the shaft, first additional components, a second top foil immediately adjacent to a second side of the thrust disc and surrounding the shaft and second additional components. The passive magnetic bearing components are integrated into the thrust disc and into the first and second additional components to remove a static load of the thrust disc on the first top foil and on the second top foil.
A line replaceable unit (LRU) includes a data communication interface configured to receive identification (ID) data from an aircraft communication bus, an aircraft systems interface configured to receive aircraft systems data corresponding to an operation of at least one aircraft system, and an LRU data interface configured to receive LRU data corresponding to the LRU. The LRU further includes a processor and a memory unit. The processor processes the aircraft systems data and the LRU data and determine at least one data category. The memory unit includes a plurality of data partitions. The processor is configured to generate at least one configuration data package by combining the ID data with one or both of the aircraft systems data and the LRU data, and to store the configuration data package in a given data partition based on the data category.
A system includes an augmentor fuel pump (AFP) configured to be connected to be driven by a gearbox of an auxiliary power unit (APU). An augmentor fuel control (AFC) is connected in fluid communication with the AFP and configured to control supply of fuel to one or more engine augmentors. A controller can be operatively connected to control the APU for a startup mode, a run mode, and a powered down mode.
A fuel system includes a main fuel pump sub-system (MFP) with an inlet for receiving a supply of fuel from an inlet line. The MFP has a main outlet line configured to supply fuel to a main fuel throttle valve assembly (MFTV), a first cross-over outlet line, and a second cross-over outlet line. An augmentor fuel pump sub-system (ABFP) has an inlet connected in fluid communication with the first cross-over outlet line, and an outlet connected in fluid communication with a main augmentor supply line. A variable displacement pump sub-system (VDPP) has an inlet connected in fluid communication with the second cross-over outlet line, a first outlet line configured to connect to supply fuel to the MFTV, and a second outlet line configured to connect to supply fuel to an actuation system.
A fuel system a main fuel pump sub-system (MFP) with an inlet for receiving a supply of fuel from an inlet line. The MFP has a main outlet line configured to supply fuel to a main fuel throttle valve assembly (MFTV), and a cross-over outlet line. A variable displacement pump sub-system (VDPP) has a first inlet connected in fluid communication with the cross-over outlet line, a second inlet connected to a branch of the main outlet line, a first outlet line configured to connect to supply fuel to the MFTV, and a second outlet line configured to connect to supply fuel to an actuation system.
A power generation system includes a rotating machine having a mechanical rotational output. An electrical generator is connected to the mechanical rotational output, and has an electrical output electrically connected to a power distribution system. A generator control unit is controllably coupled to at least the electrical generator. The generator control unit includes a memory and a processor. The generator control unit is configured to operate in conjunction with an overvoltage protection unit including a redundant overvoltage operational test system. The redundant overvoltage operational test system includes an operational amplifier configured to operate as a voltage follower during a first mode of operations, and as a point of regulation gain amplifier during a redundant overvoltage operational test.
H02P 9/10 - Commande s'exerçant sur le circuit d'excitation de la génératrice afin de réduire les effets nuisibles de surcharges ou de phénomènes transitoires, p. ex. application, suppression ou changement brutal de la charge
H02P 9/00 - Dispositions pour la commande de génératrices électriques de façon à obtenir les caractéristiques désirées à la sortie
Aircraft electric machines are described. The aircraft electric machines include a laminated rotor operably connected to a shaft, the laminated rotor comprising a plurality of rotor teeth and air gaps defined between adjacent rotor teeth about a circumference of the laminated rotor, a modular stator assembly comprising at least one stator segment having a winding wrapped about a center body of the at least one stator segment, a cooling element arranged at least one of adjacent to or within the winding, and at least one power module system comprising an active rectifier and wherein the laminated rotor and modular stator are arranged as a switched reluctance rotor-stator assembly.
H02K 3/24 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre avec des canaux ou des conduits pour un agent de refroidissement entre les conducteurs
B64D 27/30 - Aéronefs caractérisés par des groupes moteurs électriques
B64D 33/08 - Aménagement sur les aéronefs des éléments ou des auxiliaires des ensembles fonctionnels de propulsion, non prévu ailleurs des systèmes de refroidissement des ensembles fonctionnels de propulsion
H02K 9/193 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile avec des moyens de remplissage de l'agent de refroidissementDispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile avec des moyens pour empêcher les fuites de l'agent de refroidissement
H02K 11/04 - Association structurelle de machines dynamo-électriques à des organes électriques ou à des dispositifs de blindage, de surveillance ou de protection pour le redressement
A fuel system a main manifold with an inlet and a plurality of main manifold branches. Each valve in a plurality of valves is connected in fluid communication with a respective one of the main manifold branches in the plurality of main manifold branches to receive flow from the main manifold. Each secondary manifold in a plurality of secondary manifolds connects a single one of the valves in the plurality of valves to a pair of secondary manifold branches. Each nozzle in a plurality of fuel nozzles includes a first inlet connected in fluid communication to one of the valves through one of the secondary manifold branches, and a second inlet connected in fluid communication to a different one of the valves through a different one of the secondary manifold branches so each of the fuel nozzles has a redundant connection to the main manifold through two of the valves.
A pressure sensing system includes a housing that houses one or more pressure transducers therein. A tube is sealed to the housing at a first end of the tube. One or more pressure transducers are in fluid communication with a second end of the tube through an inner passage of the tube for sensing pressure at the second end of the tube.
G01L 19/00 - Détails ou accessoires des appareils pour la mesure de la pression permanente ou quasi permanente d'un milieu fluent dans la mesure où ces détails ou accessoires ne sont pas particuliers à des types particuliers de manomètres
F01D 17/08 - Aménagement des éléments sensibles sensibles aux conditions de fonctionnement du fluide énergétique, p. ex. à la pression
91.
AN AIR COOLED ELECTRIC MOTOR HAVING AN INCREASED AIRFLOW AND A METHOD FOR INCREASING THE AIRFLOW THEREIN
A method for increasing stator cooling airflow in an air cooled electric motor is provided, wherein the air cooled electric motor includes a compressor outlet housing having a motor cavity separator wall and a separator plate defining a separator plate opening, wherein the compressor outlet housing defines a separator plate cavity and a compressor rotor back-face cavity configured to receive a back-face cavity airflow. The motor cavity separator wall separates the separator plate cavity from the compressor rotor back-face cavity and defines a motor cavity separator wall through-hole which communicates the separator plate cavity with the compressor rotor back-face cavity and a motor cooling housing including a motor cooling outlet structure which defines a stator outlet cavity, wherein the separator plate is disposed to separate the stator outlet cavity from the separator plate cavity.
H02K 5/20 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des canaux ou des conduits pour la circulation d'un agent de refroidissement
92.
ALUMINUM SHEET WITH DIELECTRIC COATING ISOLATION BARRIER
The present disclosure provides for barrier wall assemblies (e.g., isolation barrier wall assemblies having embossed aluminum sheets coated with dielectric coatings). More particularly, the present disclosure provides for barrier wall assemblies configured to be positioned between electric power distribution components (e.g., positioned between power distribution components of different voltages or different criticality so that a fault in one section or component functional group will not affect adjacent areas).
A pin for a core layer of a heat exchanger past which fluid flowing through the layer passes, the pin having a leading edge, a trailing edge, a first and a second end and, an outer surface between leading edge and trailing edge and the first and second ends, and wherein the pin comprises a pin core extending from the first end to the second end and defining the leading edge and the trailing edge, and a plurality of vanes extending from the pin core each vane extending between the leading edge and the trailing edge, and the vanes arranged one above another in the direction from the first end to the second end.
F28F 3/04 - Éléments ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p. ex. avec des ailettes, avec des évidements, avec des ondulations les moyens faisant partie intégrante de l'élément
F28D 9/00 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes en forme de plaques ou de laminés pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation
A cooling structure for a rotary electric machine. The structure includes an annular radiator body defining an axis X between a first end and a second end. The annular body has a radially inner wall and a radially outer wall and a plurality of channels defined between the radially inner wall and the radially outer wall. Each channel extends from the first end to the second end and each channel has an inner channel wall. A plurality of vanes extending inwardly into the channel from the channel wall.
H02K 9/22 - Dispositions de refroidissement ou de ventilation par un matériau solide conducteur de la chaleur s'encastrant dans, ou mis en contact avec, le stator ou le rotor, p. ex. des ponts de chaleur
H02K 9/10 - Dispositions de refroidissement ou de ventilation par un agent de refroidissement gazeux circulant en circuit fermé, dont une partie est à l'extérieur de l'enveloppe de la machine
An environmental control system of an aircraft has a plurality of inlets including a first inlet for receiving a first medium and a second inlet for receiving a second medium. A thermodynamic device includes a compressor and at least one turbine and is fluidly coupled to the second inlet. A ram air circuit has a plurality of heat exchangers including a first heat exchanger and a second heat exchanger and is fluidly coupled to both the first inlet and the thermodynamic device. In a first mode, an outlet of the thermodynamic device is fluidly connected to the ram air circuit downstream from both the first heat exchanger and the second heat exchanger. In a second mode, the outlet of the thermodynamic device is fluidly connected to an inlet of one of the plurality of heat exchangers.
B64D 13/08 - Aménagements ou adaptations des appareils de conditionnement d'air pour équipages d'aéronefs, passagers ou pour emplacements réservés au fret l'air étant climatisé l'air étant réchauffé ou refroidi
A data-enabled aircraft generator module includes a generator and a generator memory unit. The generator is configured to power an aircraft based at least in part on at least one control signal output from a generator control unit (GCU). The generator memory unit configured to exchange data with the GCU.
A pump assembly includes a cylinder block defining a piston bore therein extending in an axial direction. A sleeve lines the piston bore. A piston is included in the piston bore, configured to reciprocate along a stroke in the axial direction within the sleeve. A piston ring is engaged circumferentially about the piston. The piston ring is fixed to the piston and is slidingly engaged to an inner surface of the sleeve.
F16J 10/04 - Surfaces de contactChemises de cylindres
F16J 9/26 - Segments de piston, leurs logementsSegments d'étanchéité de structure similaire en général caractérisés par l'emploi de matériaux particuliers
In accordance with at least one aspect of this disclosure, a pump comprises a pump rotor having a plurality of vanes therein configured to pump a fluid from a pump inlet to a pump outlet through rotation of the rotor about a rotational axis, an input shaft operatively connected to drive rotation of the rotor, and a bearing operatively connected to the input shaft configured to facilitate rotation of the input shaft. A shaft extender is operatively connected radially between the input shaft and the bearing. The input shaft includes a conical portion and the shaft extender includes a conical portion complementary to the conical portion of the input shaft. The shaft extender interfaces with at least the conical portion of the input shaft, when on the input shaft.
F04C 15/00 - Parties constitutives, détails ou accessoires des "machines", des pompes ou installations de pompage non couverts par les groupes
F04C 2/344 - Machines ou pompes à piston rotatif possédant les caractéristiques couvertes par au moins deux des groupes , , , ou par l'un de ces groupes en combinaison avec un autre type de mouvement entre les organes coopérants avec à la fois le mouvement défini dans l'un des groupes ou et un mouvement alternatif relatif entre les organes coopérants les organes obturateurs ayant un mouvement alternatif par rapport à l'organe interne
99.
Self-actuated bleed valves for gas turbine engines
A bleed valve includes a housing. The housing includes an inlet and an outlet with a cylindrical flow path defined between the inlet and the outlet. A diametral plane is defined diametrically spanning the cylindrical flow path. A butterfly disc inside the housing is rotatably mounted to the housing along a rotation axis for rotation between an open position and a closed position. A link rotatably is connected to a pivot point on the butterfly disc for relative rotation of the link and the butterfly disc along a pivot axis parallel to the rotation axis. The pivot axis is on an opposite side of the diametral plane from the rotation axis.
F02C 9/18 - Commande du débit du fluide de travail par prélèvement, par bipasse ou par action sur des raccordements variables du fluide de travail entre des turbines ou des compresseurs ou entre leurs étages
F01D 19/00 - Démarrage des "machines" ou machines motricesDispositifs de régulation, de commande ou de sécurité en rapport avec les organes de démarrage
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 method includes detecting a modulating undervoltage state having transients above an undervoltage threshold and triggering a protection upon detecting the modulating undervoltage state. The method can include detecting a steady state undervoltage condition, wherein triggering a protection includes triggering the protection upon detecting the steady state undervoltage condition or the modulating undervoltage state. A system includes a power source including a feedback sensor at a point of regulation (POR) of the power source configured to generate feedback indicative of voltage at the POR. A controller is operatively connected to receive the feedback. The controller includes controller logic that is configured perform a method as described above.
