The invention relates to an electrohydrostatic drive system (100) for moving a hydraulic spindle, comprising a kinetic energy storage device (140), and wherein the electrohydrostatic drive system comprises at least one hydraulic cylinder (110) for moving the hydraulic spindle, in particular a hydraulic press. Furthermore, a motor-pump unit (120) is provided which comprises an electric motor (121) and a pump (122) for supplying a hydraulic volume flow for moving the hydraulic cylinder. In addition, a motor control device (130) is provided which is designed to exchange electrical power with the electric motor. Furthermore, the electrohydrostatic drive system contains a supply device (170) which is arranged between a supply grid (160) and the motor control device. The electrohydrostatic drive system also comprises the kinetic energy storage device (140), which is electrically connected to the supply device and to the motor control device, the kinetic energy storage device being designed to exchange electrical power with the motor control device and the supply device, and to store kinetic energy.
The invention relates to an electro-hydrostatic drive system for moving a hydraulic axle, comprising a computer unit, wherein the computer unit is designed for controlling the charging of an electrical storage device, and wherein the electro-hydrostatic drive system comprises at least one hydraulic cylinder for moving a hydraulic axle. The invention further relates to a fluid-hydraulic motor pump unit having an electric motor and a pump, which is designed to provide a fluid-hydraulic volume flow having a fluid-hydraulic pressure for moving the hydraulic cylinder. In addition, a motor control device is provided which is designed to exchange electrical power with the electric motor. Furthermore, the electro hydrostatic drive system contains a feed device which is arranged between a supply network and the motor control device. The electro-hydrostatic drive system also has an electrical storage device with a storage capacity, which is electrically connected to the feed device and the motor control device, wherein the electrical storage device is designed to exchange electrical power with the motor control device and the feed device and to store electrical energy, and a computer unit which is designed to receive at least one system parameter of a plurality of system parameters of the electro-hydraulic drive system, and to automatically determine an energy content of the electro-hydrostatic drive system for the run time based on the received system parameter, and to continuously control the determined energy content of the electrical storage device, by adjusting a power flow into the electrical storage device, in such a way that, with a reduction in the fluid-hydraulic pressure, the fluid-hydrualic and mechanical energy stored in the electro-hydrostatic drive system is regenerated and stored in the electrical storage device as electrical energy, without the storage capacity of the storage device being exceeded.
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
F15B 7/00 - Systèmes de manœuvre utilisant la pression d'un fluide dans lesquels le mouvement produit est lié de façon définie au débit d'une pompe volumétriqueTélémoteurs
H02J 7/34 - Fonctionnement en parallèle, dans des réseaux, de batteries avec d'autres sources à courant continu, p. ex. batterie tampon
The invention relates to a control valve having at least one switchable control edge, comprising: • a main control piston (4), which is linearly movable in a valve body (1), wherein the main control piston (4) has an axial bore (50) and is designed to provide at least two switching states by way of a linear movement, • a secondary control piston (5), which is coaxially arranged in the axial bore (50) of the main control piston (4) and is designed to switch at least one control edge of the main control piston (4), wherein the axial bore (50) of the main control piston (4) is closed by a closure screw (16), • an actuating piston (9), which is arranged in the closure screw (16) and is designed to move the secondary control piston (5), • a switching valve (19), which is hydraulically connected to the actuating piston (9) and is designed to hydraulically actuate the actuating piston (9), wherein the main control piston (4) has at least one longitudinal groove which forms at least part of the hydraulic connection between the switching valve (19) and the actuating piston (9).
F16K 11/07 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des tiroirs à éléments de fermeture glissant linéairement à glissières cylindriques
F16K 31/122 - Moyens de fonctionnementDispositifs de retour à la position de repos actionnés par un fluide le fluide agissant sur un piston
F15B 13/04 - Dispositifs de distribution ou d'alimentation du fluide caractérisés par leur adaptation à la commande de servomoteurs pour utilisation avec un servomoteur unique
The present invention relates to a computer-implemented method for operating a motion simulation system, the method comprising: receiving first data from a motion base comprising a moveable platform, the first data indicative of motion of the moveable platform; determining one or more first values based on the received first data, the one or more first values indicative of an estimated motion of a head mounted display worn by a user on the movable platform; receiving second data from one or more sensors of the head mounted display, the second data indicative of a detected motion of the head mounted display; determining one or more second values based on the received second data; comparing the one or more first values to the one or more second values; based on the comparison, identifying a movement of the head mounted display relative to the movable platform; determining a field of view of a virtual environment based at least in part on the identified movement of the head mounted display relative to the platform; and causing the field of view to be displayed via one or more display screens of the head mounted display.
G09B 9/12 - Systèmes de déplacement pour simulateurs d'aéronef
G09B 9/30 - Simulation de vue à partir d'un aéronef
A63F 13/21 - Dispositions d'entrée pour les dispositifs de jeu vidéo caractérisées par leurs capteurs, leurs finalités ou leurs types
G09B 9/042 - Simulateurs pour l'enseignement ou l'entraînement pour l'enseignement de la conduite des véhicules ou autres moyens de transport pour l'enseignement de la conduite des véhicules terrestres avec une simulation dans un véhicule réel
G09B 9/06 - Simulateurs pour l'enseignement ou l'entraînement pour l'enseignement de la conduite des véhicules ou autres moyens de transport pour l'enseignement de la manœuvre des navires, des vaisseaux ou autres véhicules flottants
The invention relates to a control valve having a switchable control edge, and comprising a valve body (1) having a first control slide (400) and at least two control terminals (501; 502; 503; 504; 505) and at least one control edge (6; 44; 45), wherein the first control slide (400) has an axial bore (40) and a second control slide (41) is formed in the axial bore (40); and further comprising an end cap (57) having an actuating piston (48), wherein the actuating piston (48) is designed to engage in the axial bore (40), and the actuating piston (48) is designed to move the second control slide (41) in the axial bore (40).
F15B 13/04 - Dispositifs de distribution ou d'alimentation du fluide caractérisés par leur adaptation à la commande de servomoteurs pour utilisation avec un servomoteur unique
B29C 45/00 - Moulage par injection, c.-à-d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule ferméAppareils à cet effet
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
6.
Axial piston machine having a seal ring which is spherical in sections
The invention relates to an axial piston machine in which pistons carry out a stroke movement in cylinders and in which the pistons have a seal ring receptacle for a seal ring. In order to improve robustness, wear resistance, friction and stick-slip behavior, according to the invention, the seal ring is spherical, wherein the curvature radius of the seal ring, which is spherical in regions, substantially corresponds to half the diameter of the cylinder inner wall.
The present invention relates to a method for determining a present state of wear of a hydrostatic machine during the operation of the hydrostatic machine. The hydrostatic machine comprises a drive with variable rotational speed and a hydrostatic pump, wherein the drive is designed to drive the hydrostatic pump for generating a volume flow of a fluid, and wherein the hydrostatic machine is connected to a fluid transport channel in which the fluid is transported in a manner driven by the hydrostatic machine. The method has a step for determining a first torque of the drive at a specified drive vector. Furthermore, the method has a step for ascertaining a second torque of the drive at the specified drive vector using a first calculation method, and in addition, the method has a step for determining the present state of wear of the hydrostatic machine using a second calculation method, in order to compare the first determined torque and the second ascertained torque to one another.
The present invention relates to an electrohydrostatic system having a hydraulic cylinder comprising a first cylinder chamber and a second cylinder chamber. Furthermore, the electrohydrostatic system has a fluid hydraulic supply device for providing a hydraulic fluid, a fluid hydraulic motor pump unit, designed to provide a fluid hydraulic volume flow in order to move the hydraulic cylinder. A motor control device is designed to provide a rated current for an electrical drive of the fluid hydraulic motor pump unit. Moreover, the electrohydrostatic system has at least one fluid hydraulic safety valve, which on a first valve side is connected to one of the cylinder chambers of the hydraulic cylinder and on a second valve side is connected to the fluid hydraulic motor pump unit. The fluid hydraulic safety valve can be bridged via a bypass connection with a fixed orifice plate, wherein the bypass connection is connected to the first valve side and to the second valve side of the at least one fluid hydraulic safety valve. Moreover, the electrohydrostatic system has a pressure sensor that is connected to one of the cylinder chambers of the hydraulic cylinder. The pressure sensor is designed to detect a fluid hydraulic pressure on one of the cylinder chambers and, according to the detected fluid hydraulic pressure, to provide an enabling signal for the motor control device to provide the rated current for the electrical drive of the fluid hydraulic motor pump unit.
B30B 15/20 - Commande des presses actionnées pneumatiquement commandant le mouvement alternatif du pilon commandant la vitesse du pilon, p. ex. vitesse d'approche, de la course de pressage ou de la course de retour
B30B 15/28 - Dispositions pour empêcher la déformation ou l'avarie des presses ou des parties de presses
F15B 15/18 - Ensembles combinés comportant moteur et pompe
F15B 13/02 - Dispositifs de distribution ou d'alimentation du fluide caractérisés par leur adaptation à la commande de servomoteurs
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
An electro-hydrostatic actuation system and a method for driving a hydraulic actuator, e.g. a hydraulic cylinder, are described, wherein the system comprising a leakage branch, and wherein preferably an additional pump is arranged. The system further comprises a source for providing hydraulic liquid; a high-pressure circuit to direct the hydraulic liquid to a hydraulic actuator, such as e.g. a hydraulic cylinder; a low-pressure circuit having several branches; a main pump for hydraulic liquid arranged in the high-pressure circuit, comprising a housing having a high-pressure section and a low-pressure section, separated by gap sealings, wherein the high-pressure section comprises a first outlet and a second outlet to provide the hydraulic liquid flow in the high-pressure circuit; and wherein the low- pressure section comprises a leakage outlet; an electric motor driving the main pump.
F15B 7/00 - Systèmes de manœuvre utilisant la pression d'un fluide dans lesquels le mouvement produit est lié de façon définie au débit d'une pompe volumétriqueTélémoteurs
10.
Device and method for open-loop or closed-loop control of a movement of a die cushion of a die cushion press
In summary, the invention relates to a device and method for open-loop or closed-loop control of a movement of a die cushion of a die cushion press. The device has a control value encoder (11), a speed controller (12), a current controller (13), and a motor control device (14) for providing a nominal current for an electrical drive (15) of a fluid-hydraulic motor pump unit (20) for moving a die cushion of a die cushion press. The control value encoder (11) is provided in order to calculate a setpoint speed based on a die cushion control value command and a die cushion information. The speed controller (12) calculates a setpoint current based on the setpoint speed. The current controller (13) calculates a control signal based on the setpoint current, and the motor control device (14) calculates the nominal current based on the control current. In this respect, the dynamics of the control of the electrical machine can be improved.
B21D 24/14 - Dispositifs commandant ou manœuvrant les serre-flans indépendamment, ou en relation avec les matrices pneumatiquement ou hydrauliquement
G05B 19/18 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique
H02P 23/00 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par un procédé de commande autre que la commande par vecteur
The hydraulic system according to the invention comprises a hydraulic circuit with a low-pressure region and a high-pressure region; a volume- and/or speed-variable hydraulic machine, which is driven by a first electric motor and has an inlet and an outlet and provides a volume flow of a hydraulic fluid in the high-pressure region of the hydraulic circuit. The hydraulic system according to the invention further comprises at least one movable shaft, which is arranged in the high-pressure region of the hydraulic circuit; at least one valve, which separates the high-pressure region from the low-pressure region; and at least one hydraulic fluid container, which is hydraulically connected to the low-pressure region of the hydraulic circuit. The hydraulic system according to the invention also has a discharge line, which discharges hydraulic fluid from the leakage of the hydraulic machine, and a cooling line for transporting the hydraulic fluid in order to cool the electric motor, the discharge line and the cooling line being fluidically connected to at least one of the hydraulic fluid containers.
F15B 21/04 - Mesures particulières prises en rapport avec les propriétés du fluide
F15B 11/08 - Systèmes de servomoteurs dépourvus d'asservissement avec un seul servomoteur
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
F15B 7/00 - Systèmes de manœuvre utilisant la pression d'un fluide dans lesquels le mouvement produit est lié de façon définie au débit d'une pompe volumétriqueTélémoteurs
The hydraulic system according to the invention is a hydraulic system for controlling a stabilizer drive, in particular for controlling an angle of attack and/or a pivoting out and in of a stabilizer wing, preferably for ships. The hydraulic system according to the invention has a rotary vane motor that changes the angle of attack of the stabilizer wing and/or a hydraulic cylinder for pivoting the stabilizer wing out and in, along with a first hydraulic circuit. The first hydraulic circuit furthermore comprises a low-pressure circuit and a high-pressure circuit, a device for providing an admission pressure of the low-pressure circuit, and two anti-cavitation valves which separate the first low-pressure circuit from the first high-pressure circuit. The hydraulic system according to the invention is furthermore characterized in that a first hydraulic pump driven by an electric motor and having two connections is integrated in the high-pressure circuit.
B63B 39/06 - Installations pour diminuer le tangage, le roulis ou autres mouvements similaires indésirables du navireAppareils pour indiquer l'assiette du navire réduisant les mouvements du navire par l'effet d'ailerons agissant sur l'eau ambiante
F15B 11/16 - Systèmes de servomoteurs dépourvus d'asservissement avec plusieurs servomoteurs
The electrohydrostatic actuator system according to the invention comprises a volume-variable and/or rotational-speed-variable hydro machine, which is driven by an electric motor, for providing a volume flow of a hydraulic fluid, and a main shaft which is movable by the hydraulic fluid and which has at least one first chamber, wherein the first chamber, with at least one first main hydraulic line and a first main valve, is hydraulically connected to the hydro machine via a connection line. The actuator system according to the invention further comprises a secondary shaft which is movable by the hydraulic fluid and which has at least one first chamber, wherein the first chamber, with at least one first secondary hydraulic line and a first secondary valve, is hydraulically connected to the hydro machine via a connection line. Furthermore, according to the invention, a hydraulic accumulator is hydraulically connected to the first secondary hydraulic line in the area between the first chamber of the secondary shaft and the first secondary valve.
F15B 11/16 - Systèmes de servomoteurs dépourvus d'asservissement avec plusieurs servomoteurs
F15B 1/02 - Installations ou systèmes comprenant des accumulateurs
F15B 11/20 - Systèmes de servomoteurs dépourvus d'asservissement avec plusieurs servomoteurs commandant plusieurs organes réagissant les uns sur les autres ou fonctionnant successivement
B21D 24/14 - Dispositifs commandant ou manœuvrant les serre-flans indépendamment, ou en relation avec les matrices pneumatiquement ou hydrauliquement
F15B 11/22 - Synchronisation du mouvement de plusieurs servomoteurs
14.
AXIAL PISTON MACHINE HAVING A SEAL RING WHICH IS SPHERICAL IN SECTIONS
The invention relates to an axial piston machine in which pistons carry out a stroke movement in cylinders and in which the pistons have a seal ring receptacle for a seal ring. In order to improve robustness, wear resistance, friction and stick-slip behavior, according to the invention, the seal ring is spherical, wherein the curvature radius of the seal ring, which is spherical in regions, substantially corresponds to half the diameter of the cylinder inner wall.
The present invention relates to a method for determining a present state of wear of a hydrostatic machine during the operation of the hydrostatic machine. The hydrostatic machine comprises a drive with variable rotational speed and comprises a hydrostatic pump, wherein the drive is designed to drive the hydrostatic pump in order to generate a volume flow of a fluid, and wherein the hydrostatic machine is connected to a fluid transport channel in which the fluid is transported in a manner driven by the hydrostatic machine. The method has a step for determining a first torque of the drive in the case of a specified drive vector. Furthermore, the method has a step for ascertaining a second torque of the drive in the case of the specified drive vector using a first calculation method, and furthermore, the method has a step for determining the present state of wear of the hydrostatic machine using a second calculation method in order to correlate the first determined torque with the second ascertained torque.
An electrohydrostatic actuator system comprising: a volume- and/or speed-variable hydraulic machine which is driven by an electric motor, for providing a volumetric flow of a hydraulic fluid; a differential cylinder with a piston side and a ring side; and at least one pretensioning source. The actuator system has a closed hydraulic circuit, wherein, during operation, the hydraulic fluid in the hydraulic circuit is pressurized by means of the hydraulic machine and/or the pretensioning source. Furthermore, according to the invention, the differential cylinder provides a power motion operating mode and a rapid motion operating mode. In order to balance a volume of the hydraulic fluid in the closed hydraulic circuit, according to the invention an expansion reservoir is connected to the piston side of the differential cylinder via a valve.
F15B 1/26 - Réservoirs d'alimentation ou de pompage
F15B 7/00 - Systèmes de manœuvre utilisant la pression d'un fluide dans lesquels le mouvement produit est lié de façon définie au débit d'une pompe volumétriqueTélémoteurs
F15B 11/17 - Systèmes de servomoteurs dépourvus d'asservissement avec plusieurs servomoteurs utilisant plusieurs pompes
An actuator including a housing, an actuator rod and a snubber assembly. The actuator has an axis, the housing has a first end and an aperture positioned at the first end of the housing, and the actuator rod extends through the aperture along the axis of the actuator. The snubber assembly is mounted at the first end of the housing, and includes one or more energy absorbing devices. The snubber assembly is positioned on the housing such that an axis of each of the one or more energy absorbing devices is offset relative to the axis of the actuator. The snubber assembly is configured such that the one or more energy absorbing devices provide bidirectional end-of-stroke damping.
F04B 1/04 - "Machines" ou pompes multicylindres caractérisées par le nombre ou la disposition des cylindres ayant des cylindres disposés en étoile ou en éventail
F04B 51/00 - Tests des "machines", pompes ou installations de pompage
19.
Apparatus and method for cylinder changeover with a mechanically lockable force-building cylinder
An electro-hydrostatic drive for realizing a rapid movement and a force-building movement, comprising a hydro-machine with variable volume and/or rotational speed, driven by an electric motor, for providing a volume-flow of a hydraulic fluid, a first cylinder with a housing, a piston, a cylinder rod, and a first and a second cylinder chamber, a second cylinder with a piston, a cylinder rod, and a first and a second cylinder chamber, a moveable carrier plate, a pillar, and a clamping apparatus to clamp and/or unclamp the first cylinder to the pillar, where the hydraulic drive has a closed hydraulic circuit, which has, when run, a positive pressure above atmospheric pressure and which, by utilizing the hydro-machine, can pressurize either the first or the second cylinder chamber of the first cylinder and/or the first or the second cylinder chamber of the second cylinder. The moveable carrier plate is connected both to the first cylinder and to the second cylinder. For the force-building movement, the first cylinder is clamped, by the clamping apparatus, to the pillar and one cylinder chamber of the first cylinder is pressurized with the hydraulic fluid, and for the rapid movement, the first cylinder is unclamped, by the clamping apparatus, from the pillar and one cylinder chamber of the second cylinder is pressurized with the hydraulic fluid.
B30B 15/16 - Commande des presses actionnées pneumatiquement
B29C 45/67 - Dispositifs d'ouverture, de fermeture ou de serrage des moules hydrauliques
B30B 1/32 - Presses, utilisant un élément pilonnant, caractérisées par le mode d'entraînement du pilon, la pression étant transmise au pilon ou à la platine de presse directement ou uniquement par l'intermédiaire d'organes travaillant en simple poussée ou traction par des plongeurs sous pression de fluide
The present invention relates to an electrohydrostatic system having a hydraulic cylinder comprising a first cylinder chamber and a second cylinder chamber. Furthermore, the electrohydrostatic system has a fluid hydraulic supply device for providing a hydraulic fluid, a fluid hydraulic motor pump unit designed to provide a fluid hydraulic volume flow in order to move the hydraulic cylinder. A motor control device is designed to provide a rated current for an electrical drive of the fluid hydraulic motor pump unit. Moreover, the electrohydrostatic system has at least one fluid hydraulic safety valve, which on a first valve side is connected to one of the cylinder chambers of the hydraulic cylinder and on a second valve side is connected to the fluid hydraulic motor pump unit. The fluid hydraulic safety valve can be bridged via a bypass connection with a fixed orifice plate, the bypass connection being connected to the first valve side and to the second valve side of the at least one fluid hydraulic safety valve. Moreover, the electrohydrostatic system has a pressure sensor which is connected to one of the cylinder chambers of the hydraulic cylinder. The pressure sensor is designed to detect a fluid hydraulic pressure on one of the cylinder chambers and, according to the detected fluid hydraulic pressure, to provide an enabling signal for the motor control device to provide the rated current for the electrical drive of the fluid hydraulic motor pump unit.
B30B 15/20 - Commande des presses actionnées pneumatiquement commandant le mouvement alternatif du pilon commandant la vitesse du pilon, p. ex. vitesse d'approche, de la course de pressage ou de la course de retour
B30B 15/28 - Dispositions pour empêcher la déformation ou l'avarie des presses ou des parties de presses
F15B 11/00 - Systèmes de servomoteurs dépourvus d'asservissement
F15B 13/01 - Clapets de blocage ou autres dispositifs de détente
b), and a processor adapted to derive a first output force signal for output to the first admittance controller and actuator assembly based on a Lagrange multiplier dependent on a comparison of the first input force signal and the second input force signal.
The present invention relates to an extrusion press (10, 20, 30) with a press cylinder (111), the press cylinder (111) being driven with an electro-hydrostatic control system (104) for a power transmission and being connected to a separate drive (120, 400) for rapid traverse, with a container (115), wherein the container (115) is connected to a hydraulic cylinder (117) for a power transmission and to a further separate drive (119, 300) for rapid traverse, with a hydraulic cylinder (101) with a locking device (103) for driving a shearing tool (102), wherein the hydraulic cylinder (101) is connected to the electro-hydrostatic control system (104), and wherein the press cylinder (111) in the power transmission and the hydraulic cylinder (101) for driving a shearing tool (102) are controlled alternately via the common electro-hydrostatic control system (104).
B30B 1/32 - Presses, utilisant un élément pilonnant, caractérisées par le mode d'entraînement du pilon, la pression étant transmise au pilon ou à la platine de presse directement ou uniquement par l'intermédiaire d'organes travaillant en simple poussée ou traction par des plongeurs sous pression de fluide
B30B 15/16 - Commande des presses actionnées pneumatiquement
B30B 9/32 - Presses spécialement adaptées à des fins particulières pour rendre compacts des résidus métalliques ou pour comprimer des véhicules devenus inutilisables
B29C 48/00 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet
B29C 48/05 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet caractérisées par la forme à l’extrusion de la matière extrudée filamentaire, p. ex. fils
B29C 48/06 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet caractérisées par la forme à l’extrusion de la matière extrudée en forme de tige
An electro-hydrostatic actuator system for a press drive, having an upper piston with a press surface, which acts from a first direction, wherein the press surface of the upper piston is actuated by means of a piston rod in a hydraulic cylinder of the upper piston and traverses a first distance in a press run, and a first electro-hydrostatic actuator for driving the upper piston, comprising a first pump and a first motor generators which is controlled by a first controller. The system furthermore comprises at least one auxiliary piston with a press surface, which acts from a second direction opposite the first direction, wherein the press surface of the auxiliary piston is actuated by means of a piston rod in a hydraulic cylinder of the auxiliary piston and traverses a second distance in the press run, and a second electro-hydrostatic actuator for driving the at least one auxiliary piston, comprising a second pump and a second motor generator which is controlled by a second controller. The second motor generator is operated as a generator in the press run, thereby generating energy which is provided to the first motor generator or auxiliary piston, which are operated as motors, via the common DC bus.
An electro-hydrostatic actuation system and a method for driving a hydraulic actuator, e.g. a hydraulic cylinder, are described, wherein the system comprising a leakage branch, and wherein preferably an additional pump is arranged. The system further comprises a source for providing hydraulic liquid; a high-pressure circuit to direct the hydraulic liquid to a hydraulic actuator, such as e.g. a hydraulic cylinder; a low-pressure circuit having several branches; a main pump for hydraulic liquid arranged in the high-pressure circuit, comprising a housing having a high-pressure section and a low-pressure section, separated by gap sealings, wherein the high-pressure section comprises a first outlet and a second outlet to provide the hydraulic liquid flow in the high-pressure circuit; and wherein the low- pressure section comprises a leakage outlet; an electric motor driving the main pump.
F15B 7/00 - Systèmes de manœuvre utilisant la pression d'un fluide dans lesquels le mouvement produit est lié de façon définie au débit d'une pompe volumétriqueTélémoteurs
F15B 19/00 - Test des systèmes ou appareils de manœuvre utilisant la pression d'un fluide, dans la mesure où ils ne sont pas prévus ailleurs
F04B 17/03 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques
25.
Actuating drive having a hydraulic outflow booster
An electro-hydrostatic actuating drive has a variable-volume and/or variable-speed hydraulic machine, which is driven by an electric motor, for the provision of a volumetric flow of a hydraulic fluid. Furthermore, the actuating drive comprises a cylinder with a piston, a piston rod and a first piston chamber, a valve with a first position and a second position, which valve can be moved by a first hydraulic actuator into the first position and by a second hydraulic actuator into the second position, wherein the second position controls a greater volumetric flow of the hydraulic fluid than the first position, a sink, a main line which connects a first piston chamber of the cylinder to the sink and in which the hydraulic machine is arranged, an auxiliary line which connects the first piston chamber to the sink and in which the valve is arranged, a first control line to the first hydraulic actuator, and a second control line to the second hydraulic actuator. A hydraulic resistor is arranged in the main line in series with the hydraulic machine, the first control line is connected to the main line, and the second control line is connected between the hydraulic resistor and the first piston chamber.
F01D 17/26 - Dispositifs utilisant des éléments sensibles ou des organes de commande terminaux ou les organes de liaison entre les deux, p. ex. commande assistée l'énergie de fonctionnement ou de puissance assistée étant essentiellement non mécanique à fluide, p. ex. hydraulique
F15B 11/08 - Systèmes de servomoteurs dépourvus d'asservissement avec un seul servomoteur
The invention relates to a device and a method for open-open or closed-loop control of a movement of a die cushion of a die cushion press. The device has an control value encoder (11), a speed controller (12), a current controller (13) and a motor control device (14) for providing a nominal current for an electrical drive (15) of a fluid-hydraulic motor pump unit (20) for moving a die cushion of a die cushion press. The control value encoder (11) is provided in order to calculate a setpoint speed based on a die cushion control value command and a piece of die cushion information. The speed controller (12) calculates a setpoint current based on the setpoint speed. The current controller (13) calculates a control signal based on the setpoint current, and the motor control device (14) calculates the nominal current based on the control current. According to the invention, the dynamics of the control of the electrical machine can thus be improved.
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
H02P 23/16 - Commande de la vitesse angulaire d’un arbre
H02P 25/00 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de moteur ou par des détails de structure
B21D 24/14 - Dispositifs commandant ou manœuvrant les serre-flans indépendamment, ou en relation avec les matrices pneumatiquement ou hydrauliquement
F04B 17/03 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques
F04B 49/08 - Régulation par la pression de refoulement
F04B 49/20 - Commande des "machines", pompes ou installations de pompage ou mesures de sécurité les concernant non prévues dans les groupes ou présentant un intérêt autre que celui visé par ces groupes en modifiant la vitesse d'entraînement
The invention relates to a worm drive comprising a worm shaft and a first receiving unit. The worm shaft is rotatably mounted in the first receiving unit. Furthermore, the worm drive comprises a worm wheel and a second receiving unit. The worm wheel is rotatably mounted in the second receiving unit. The first receiving unit is arranged on the second receiving unit and the rotatably mounted worm shaft is in contact with the worm wheel of the second receiving unit in order to transmit a torque. Furthermore, the worm drive comprises guide pins for detachably connecting the first receiving unit to the second receiving unit. More particularly, the first receiving unit receives at least part of the guide pins and the second receiving unit is connected to one of the guide pins, preferably to a first end of the guide pin. A spring element is arranged on a second end of the guide pin between the first receiving unit and a fastening means.
The invention relates to a radial reciprocating engine (1) having cylinders (5) arranged in a cylinder carrier (16) and a piston element (21) arranged in every cylinder (6), which piston element is connected to a guide element (22), wherein the guide element (22) runs on a sliding surface (14), as a result of which a stroke movement is imposed on the piston element (21). Because the piston element (21) is spherical, at least in the region of the piston element (21) which effects a seal during the stroke movements on inner walls (51) of the cylinder (5), a linear seal is created which allows a more compact design compared to radial pumps having cylindrical piston elements.
F04B 1/0426 - Agencements pour presser les pistons contre la came actionnéeAgencements pour connecter les pistons à la came actionnée
F04B 1/1071 - "Machines" ou pompes multicylindres caractérisées par le nombre ou la disposition des cylindres ayant des cylindres disposés en étoile ou en éventail les cylindres étant mobiles, p. ex. rotatifs avec des éléments actionnants ou actionnés aux extrémités extérieures des cylindres avec des blocs-cylindres rotatifs
The hydraulic system according to the invention comprises: a hydraulic circuit with a low-pressure region and a high-pressure region; and a volume- and/or speed-variable hydraulic machine, which is driven by a first electric motor and which has an inlet and an outlet and provides a volume flow of a hydraulic fluid in the high-pressure region of the hydraulic circuit. The hydraulic system according to the invention further comprises: at least one movable shaft, which is arranged in the high-pressure region of the hydraulic circuit; at least one valve, which separates the high-pressure region from the low-pressure region; and at least one hydraulic fluid container, which is hydraulically connected to the low-pressure region of the hydraulic circuit. The hydraulic system according to the invention also has a discharge line, which discharges hydraulic fluid from the leakage of the hydraulic machine, and a cooling line for transporting the hydraulic fluid in order to cool the electric motor, the discharge line and the cooling line being fluidically connected to at least one of the hydraulic fluid containers.
F15B 21/04 - Mesures particulières prises en rapport avec les propriétés du fluide
F15B 7/00 - Systèmes de manœuvre utilisant la pression d'un fluide dans lesquels le mouvement produit est lié de façon définie au débit d'une pompe volumétriqueTélémoteurs
The invention relates to a hydraulic system for controlling a stabiliser drive, in particular for controlling an angle of attack and/or controlling the pivoting out and in of a stabiliser wing, preferably for ships. The hydraulic system according to the invention comprises: a rotary vane motor which changes the angle of attack of the stabiliser wing; and/or a hydraulic cylinder for pivoting the stabiliser wing out and in. The hydraulic system also comprises a first hydraulic circuit. The first hydraulic circuit also comprises a low-pressure circuit and a high-pressure circuit, a device for providing an admission pressure of the low-pressure circuit, and two anti-cavitation valves which separate the first low-pressure circuit from the first high-pressure circuit. The hydraulic system according to the invention is also characterised in that a first hydraulic pump which is driven by an electric motor and has two connections is integrated in the high-pressure circuit and is hydraulically connected to the rotary vane motor and/or the hydraulic cylinder.
An electro-hydrostatic drive for realizing a rapid movement during a rapid movement phase, a force-building movement during a force-building movement phase. The apparatus comprises a hydro-machine with variable volume and/or rotational speed, driven by an electric motor, for providing a volume-stream of a hydraulic fluid, a first cylinder with a piston chamber, an rod chamber, and a plunger rod, a reservoir, a pressure source, a relief valve, a check valve, a fluid connection between the piston chamber and the hydro-machine, a fluid connection between the rod chamber and the hydro-machine, a fluid connection between the piston chamber and the reservoir, a fluid connection between the rod-chamber-side port of the hydro-machine and the reservoir, a fluid connection, through the relief valve, between the reservoir and the pressure source. The relief valve is for pressure safety of the reservoir, and the check valve has a fluid connection from the pressure source to the rod-chamber-side port of the hydro-machine, during the rapid movement phase, a first part of the hydraulic fluid is piped through the fluid connection between the piston chamber and the hydro-machine and the fluid connection between the rod chamber and the hydro-machine, and a second part of the hydraulic fluid communicates through the fluid connection between the piston chamber and the reservoir, during the force-building movement phase, a first part of the hydraulic fluid is piped through the fluid connection between the piston chamber and the hydro-machine and the fluid connection between the rod chamber and the hydro-machine, and a second part of the hydraulic fluid is piped through the fluid connection between the rod-chamber-side port of the hydro-machine and the reservoir.
B30B 15/16 - Commande des presses actionnées pneumatiquement
B30B 15/18 - Commande des presses actionnées pneumatiquement commandant le mouvement alternatif du pilon
F15B 7/00 - Systèmes de manœuvre utilisant la pression d'un fluide dans lesquels le mouvement produit est lié de façon définie au débit d'une pompe volumétriqueTélémoteurs
F15B 11/02 - Systèmes comportant essentiellement des moyens particuliers pour commander la vitesse ou la puissance d'un organe de sortie
The electro-hydrostatic actuator system according to the invention comprises a volume-variable and/or rotational-speed-variable hydro machine, which is driven by an electric motor, for providing a volume flow of an hydraulic fluid, and a main shaft which is movable by the hydraulic fluid and which has at least one first chamber, wherein the first chamber, with at least one first main hydraulic line and a first main valve, is hydraulically connected to the hydro machine via a connection line. The actuator system according to the invention further comprises a secondary shaft which is movable by the hydraulic fluid and which has at least one first chamber, wherein the first chamber, with at least one first secondary hydraulic line and a first secondary valve, is hydraulically connected to the hydro machine via a connection line. Furthermore, according to the invention, a hydraulic accumulator is hydraulically connected to the first secondary hydraulic line in the area between the first chamber of the secondary shaft and the first secondary valve.
Electrohydrostatic drive with an electromechanical drive with a rotating drive shaft and a first receiving unit, wherein the electromechanical drive is arranged in the first receiving unit. Furthermore, the electrohydrostatic drive comprises a pump unit and a second receiving unit, wherein the pump unit is arranged in the second receiving unit and the second receiving unit contains a transport fluid, and the first receiving unit and the second receiving unit are arranged in contact with one another, with the result that the electromechanical drive and the pump unit are connected to one another via the drive shaft. In addition, the electromechanical drive comprises a slide ring seal, wherein the slide ring seal is arranged along the direction of extent of the drive shaft, between the electromechanical drive and the pump unit, in such a way that the first receiving unit with the electromechanical drive and the second receiving unit with the pump unit are connected along the rotating drive shaft in a fluid-tight manner with respect to one another by way of the slide ring seal.
F04B 1/0448 - Joints d’étanchéité, p. ex. des arbres ou des carters
F04B 17/03 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques
F04B 53/16 - Carcasses d'enveloppeCylindresChemises de cylindre ou culassesConnexions des tubulures pour fluide
F16J 15/34 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par bague glissante pressée contre la face plus ou moins radiale d'une des deux parties
34.
ELECTROHYDROSTATIC ACTUATOR SYSTEM WITH AN EXPANSION RESERVOIR
An electrohydrostatic actuator system comprising: a volume- and/or speed-variable hydraulic machine which is driven by an electric motor, for providing a volumetric flow of a hydraulic fluid; a differential cylinder with a piston side and a ring side, and at least one pretensioning source. The actuator system has a closed hydraulic circuit, wherein, during operation, the hydraulic fluid in the hydraulic circuit is pressurized by means of the hydraulic machine and/or the pretensioning source. Furthermore, according to the invention, the differential cylinder provides a power motion operating mode and a rapid motion operating mode. In order to balance a volume of the hydraulic fluid in the closed hydraulic circuit, according to the invention an expansion reservoir is connected to the piston side of the differential cylinder via a valve.
F15B 1/26 - Réservoirs d'alimentation ou de pompage
F15B 7/00 - Systèmes de manœuvre utilisant la pression d'un fluide dans lesquels le mouvement produit est lié de façon définie au débit d'une pompe volumétriqueTélémoteurs
F15B 11/17 - Systèmes de servomoteurs dépourvus d'asservissement avec plusieurs servomoteurs utilisant plusieurs pompes
An actuator including a housing, an actuator rod and a snubber assembly. The actuator has an axis, the housing has a first end and an aperture positioned at the first end of the housing, and the actuator rod extends through the aperture along the axis of the actuator.The snubber assembly is mounted at the first end of the housing, and includes one or more energy absorbing devices. The snubber assembly is positioned on the housing such that an axis of each of the one or more energy absorbing devices is offset relative to the axis of the actuator.The snubber assembly is configured such that the one or more energy absorbing devices provide bidirectional end-of-stroke damping.
The invention relates to an extrusion press (10, 20, 30) with a press cylinder (111), which is driven by a electro-hydrostatic control system (104) for a power mode and is connected to a separate drive (120) for a speed mode, a detector (115), which is connected to a hydraulic cylinder (117) for the power mode and to an additional separate drive (119, 300) for the speed mode, and a hydraulic cylinder (101) with a blocking device (103) for the drive of a shearing tool (102), wherein the hydraulic cylinder (101) is connected to the electro-hydrostatic control system (104), and the press cylinder (111), in the power mode, and the hydraulic cylinder (101) for the drive of the shearing tool (102) are controlled in an alternating manner via the common electro-hydrostatic control system (104).
123121233); control means for receiving the sensor signal and configured to control the switching circuit to provide a predetermined voltage and/or charging current.
11222) to the DC current or AC current requested by the electric vehicles (9). A control circuit (41) which is adapted to measure an output current provided by the at least one of the DC/DC converter (4) determines on basis of the measured output current a power control signal for controlling the power consumed by the input circuit (3).
The invention relates to a press drive, such as those used in powder presses for example. A system according to the invention comprises an electro-hydrostatic actuator system (10) for a press drive, having an upper piston (100) with a press surface (120), which acts from a first direction, wherein the press surface (120) of the upper piston (100) is actuated by means of a piston rod (118) in a hydraulic cylinder (110) of the upper piston (100) and traverses a first distance during a press run, and a first electro-hydrostatic actuator (130) for driving the upper piston (100), comprising a first pump (132) and a first motor generator (134) which is actuated by a first controller (140). The system additionally comprises at least one auxiliary piston (200) with a press surface (220), which acts from a second direction opposite the first direction, wherein the press surface (220) of the auxiliary piston (200) is actuated by means of a piston rod (218) in a hydraulic cylinder (210) of the auxiliary piston (100) and traverses a second distance during the press run, and a second electro-hydrostatic actuator (230) for driving the at least one auxiliary piston (200), comprising a second pump (232) and a second motor generator (234) which is actuated by a second controller (240). The system is characterized in that the second motor generator (234) of the second electro-hydrostatic actuator (230) is operated as a generator during the press run, thereby generating energy which is provided to the first motor generator or auxiliary piston that is being operated as the motor via a common DC bus.
The present invention relates to an actuating drive having a variable-speed pump, as used, for example, in steam turbines, gas turbines and die casting machines. The electrohydrostatic actuating drive (10) has a variable-volume and/or variable-speed hydraulic machine which is driven by an electric motor, for the provision of a volumetric flow of a hydraulic fluid. Furthermore, the actuating drive comprises a cylinder (200) with a piston (210), a piston rod (230) and a first piston chamber (220), a valve (100) with a first position and a second position, which valve (100) can be moved by a first hydraulic actuator into the first position and by a second hydraulic actuator into the second position, wherein the second position controls a greater volumetric flow of the hydraulic fluid than the first position, a sink, a main line (130, 160) which connects a first piston chamber (220) of the cylinder (200) to the sink and in which the hydraulic machine (50) is arranged, an auxiliary line (110, 120) which connects the first piston chamber (220) to the sink and in which the valve (100) is arranged, a first control line (140) to the first hydraulic actuator, and a second control line (150) to the second hydraulic actuator. The actuating drive is characterized in that a hydraulic resistance (180) is arranged in the main line (130, 160) in series with the hydraulic machine (50), the first control line (140) is connected at the main line (130, 160), and the second control line (150) is connected between the hydraulic resistance (180) and the first piston chamber (220).
The present invention relates to hydraulic presses that has an electro-hydrostatic drive (10) for realizing a rapid movement and a force-building movement, comprising a hydro-machine (50) with variable volume and/or rotational speed, driven by an electric motor (60), for furnishing / providing a volume-flow of a hydraulic fluid, a first cylinder (100) with a housing (105), a piston (110), a cylinder rod (122), and a first (120) and a second (130) cylinder chamber, a second cylinder (200) with a piston (210), a cylinder rod (222), and a first (220) and a second (230) cylinder chamber, a moveable carrier plate (430), a pillar (410), and a clamping apparatus (390) to clamp and/or unclamp the first cylinder (100) to the pillar (410), where the hydraulic drive (10) has a closed hydraulic circuit, which has, when run, a positive pressure above atmospheric pressure and which, by means of the hydro- machine (50), can pressurize either the first (120) or the second (130) cylinder chamber of the first cylinder (100) and/or the first (220) or the second (230) cylinder chamber of the second cylinder (200). The invention is characterized in that the moveable carrier plate (430) is connected both to the first cylinder (100) and to the second cylinder (200), for the force-building movement, the first cylinder (100) is clamped, by the clamping apparatus (390), to the pillar (410) and one cylinder chamber (120, 130) of the first cylinder (100) is pressurized with the hydraulic fluid, and for the rapid movement, the first cylinder (100) is undamped, by the clamping apparatus (390), from the pillar (410) and one cylinder chamber (220, 230) of the second cylinder (200) is pressurized with the hydraulic fluid.
B30B 1/32 - Presses, utilisant un élément pilonnant, caractérisées par le mode d'entraînement du pilon, la pression étant transmise au pilon ou à la platine de presse directement ou uniquement par l'intermédiaire d'organes travaillant en simple poussée ou traction par des plongeurs sous pression de fluide
B29C 45/67 - Dispositifs d'ouverture, de fermeture ou de serrage des moules hydrauliques
B30B 15/16 - Commande des presses actionnées pneumatiquement
The invention relates to a worm drive comprising a worm shaft and a first receiving unit. The worm shaft is rotatably mounted in the first receiving unit. Furthermore, the worm drive comprises a worm wheel and a second receiving unit. The worm wheel is rotatably mounted in the second receiving unit. The first receiving unit is arranged on the second receiving unit and the rotatably mounted worm shaft is in contact with the worm wheel of the second receiving unit in order to transmit a torque. Furthermore, the worm drive comprises guide pins for detachably connecting the first receiving unit to the second receiving unit. More particularly, the first receiving unit receives at least part of the guide pins and the second receiving unit is connected to one of the guide pins, preferably to a first end of the guide pin. A spring element is arranged on a second end of the guide pin between the first receiving unit and a fastening means.
The present invention relates to an electro-hydrostatic system (1) with a hydraulic machine (11) which is driven by an electric motor (10) and has a variable volume and/or rotational speed for providing a volumetric flow rate of a hydraulic fluid, a differential cylinder (20) with a piston surface and with an annular surface, and at least one equalization container (30, 37), wherein the drive system (1) has a closed hydraulic circuit and during operation has an overpressure relative to the environment by means of the hydraulic machine (11) and/or a pretensioning source (15, 37), and the drive system (1) provides a movement of the cylinder in a first direction by means of a volumetric flow rate of the hydraulic machine (11) and a volumetric flow rate from the equalization container (30, 37), and provides a movement in a second direction by means of a volumetric flow rate of the hydraulic machine (11) and a volumetric flow rate into the equalization container (30, 37), and a power operating mode and a speed operating mode are provided with the differential cylinder (20).
An energy storage assembly has a housing tray for holding one or more battery cells and one or more resiliently flexible straps for securing the battery cells within the housing. The resiliently flexible straps provide sufficient restraining force whilst being flexible to absorb stresses that would otherwise be transmitted to the battery cells.
H01M 2/10 - Montures; Dispositifs de suspension; Amortisseurs; Dispositifs de manutention ou de transport; Supports
H01G 11/76 - Bornes, p. ex. extensions des collecteurs de courant spécialement adaptées pour être intégrées dans des condensateurs hybrides ou EDL multiples ou empilés
H01G 11/82 - Fixation ou assemblage d’un élément capacitif dans un boîtier, p. ex. montage d’électrodes, de collecteurs de courant ou de bornes dans des récipients ou des encapsulations
The invention relates to an emergency power control device (1) for a DC motor (3). In a non-emergency mode the DC motor (3) is supplied with armature current and shunt current by a power converter (2). The emergency power control device (2) comprises connecting means configured to connect in an emergency mode at least one of a armature winding (31), a shunt winding (32), or a serial winding (33) of the DC motor (3) to an emergency power supply. For supplying the DC motor (3) in an emergency mode with armature current and shunt current the emergency power control device (1) comprises at least one of an armature connecting means controls the current supplied to the armature winding (31) of the DC motor (3) in emergency mode such that in an initial time period the current supplied to the armature (31) of the DC motor (3) is lower than in a time period following the initial time period, and a shunt connecting means controls the current supplied to the shunt winding of the DC motor (30) in emergency mode such that in an initial time period the current supplied to the shunt winding (33) is higher than in a time period following the initial time period.
H02P 7/298 - Dispositions pour réguler ou commander la vitesse ou le couple de moteurs électriques à courant continu pour réguler ou commander individuellement un moteur dynamo-électrique à courant continu en faisant varier le champ ou le courant d'induit par commande maîtresse avec puissance auxiliaire utilisant des tubes à décharge ou des dispositifs à semi-conducteurs utilisant des dispositifs à semi-conducteurs commandant l'alimentation de l'induit et du champ
47.
APPARATUS FOR CONTROLLING THE SWITCH OVER OF HYDRAULIC CYLINDERS
An apparatus according to the present invention is an electro-hydrostatic drive for realizing a rapid movement during a rapid movement phase, a force-building movement during a force-building movement phase. The apparatus comprises a hydro-machine (50) with variable volume and/or rotational speed, driven by an electric motor (60), for providing a volume-stream of a hydraulic fluid, a first cylinder (100) with a piston chamber (120), a rod chamber (130), and a plunger rod (132), a reservoir (200), a pressure source (400), a relief valve (480), a check valve (430), a fluid connection (125) between the piston chamber (120) and the hydro-machine (50), a fluid connection (135) between the rod chamber (130) and the hydro-machine (50), a fluid connection (125, 236, 235) between the piston chamber (120) and the reservoir (200), a fluid connection (237, 235) between the rod-chamber-side port of the hydro-machine (50) and the reservoir (200), a fluid connection, through the relief valve (480), between the reservoir (200) and the pressure source (400). The apparatus is characterized in that the relief valve (480) is for pressure safety of the reservoir (200), and the check valve (430) has a fluid connection from the pressure source (400) to the rod-chamber-side port of the hydro-machine (50), during the rapid movement phase, a first part of the hydraulic fluid is piped through the fluid connection (125) between the piston chamber (120) and the hydro-machine (50) and the fluid connection (135) between the rod chamber (130) and the hydro-machine (50), and a second part of the hydraulic fluid communicates through the fluid connection (125, 236, 235) between the piston chamber (120) and the reservoir (200), during the force-building movement phase, a first part of the hydraulic fluid is piped through the fluid connection (125) between the piston chamber (120) and the hydro-machine (50) and the fluid connection (135) between the rod chamber (130) and the hydro-machine (50), and a second part of the hydraulic fluid is piped through the fluid connection (237, 235) between the rod-chamber-side port of the hydro-machine (50) and the reservoir (200).
A coupling device (16, 116, 216, 316) configured optimally to communicate between a first and a second admittance controller and actuator assembly, the first and the second admittance control and actuator assembly respectively having a first and a second admittance controller (12a, 12b) configured to drive a respective first and a second actuator and each of the first and the second actuator being respectively connected to a first body having a first mass and a second body having a second mass, wherein the coupling device (16, 116, 216, 316) comprises: an input port having a first input for receiving a first input force signal (f1) from the first admittance controller and actuator assembly (12a) and a second input for receiving a second input force signal (f2) from the second admittance controller and actuator assembly (12b), and a processor adapted to derive a first output force signal for output to the first admittance controller and actuator assembly based on a Lagrange multiplier dependent on a comparison of the first input force signal and the second input force signal.
Method and arrangement for testing a controllable switching device for an mechanically operated device (4) wherein the mechanically operated device (4) rests in an actuated position at least as long as a controllable switching device supplies an electromagnetic actuator with a supply current. The method comprises the steps of measuring a first current flowing through the electromagnetic actuator when the controllable switching device is in a closed position (702); opening the contacts of the controllable switching device for a test time period, wherein the test time period is chosen as short as that the mechanically operated device rests in the actuated position (703); measuring a second current flowing through the electromagnetic actuator at the end of the test time period (704); calculate the ratio of the second current in relation to the first current (706); comparing the ratio with an expected range (707); indicating that the controllable switching device has not passed the test when the calculated ratio is outside the expected range (709).
A motion simulator is constructed from a base driving an intermediate member via a 6 DOF hexapod, and a platform driven by a 2 DOF simulator is provided on the intermediate member to supplement pitch and roll.
A safe hydraulic drive system and process, comprising at least one first cylinder chamber and a second, separate cylinder chamber which are connected to one another via a connecting line to form a fluid-filled hydraulic circuit, and a hydraulic drive for conveying the fluid from one cylinder chamber, via the connecting line, into the other cylinder chamber in which the connecting line is arranged. The connecting line has at least one parallel system, between the hydraulic drive and one of the two cylinder chambers, including at least one first sub-connection with at least one first stop valve and a second sub-connection with a baffle arranged therein. The connecting line, excluding the second sub-connection, has a first flow resistance and the second sub-connection has a second flow resistance due to the baffle arranged therein, which is greater than the first flow resistance for the fluid, wherein the drive system is provided with at least one open first stop valve in normal mode and with a closed first stop valve in safe mode for conveying the fluid, and a suitably high second flow resistance has been selected so that a maximum permissible speed for a piston rod is not exceeded in safe mode, even when an external force acts on the drive system in the direction of movement of the piston rod.
F15B 20/00 - Dispositions propres à la sécurité pour systèmes de manœuvre utilisant les fluidesUtilisation des dispositifs de sécurité dans les systèmes de manœuvre utilisant des fluidesMesures d'urgence pour les systèmes de manœuvre utilisant des fluides
F15B 11/04 - Systèmes comportant essentiellement des moyens particuliers pour commander la vitesse ou la puissance d'un organe de sortie pour commander la vitesse
The invention relates to an electro-hydrostatic system (1) comprising a hydraulic machine (11) which is driven by an electric motor (10) and has a variable volume and/or rotational speed for providing a volumetric flow rate of a hydraulic fluid, a differential cylinder (20) with a piston surface and with an annular surface, and at least one equalization container (30, 37). The drive system (1) has a closed hydraulic circuit and an overpressure relative to the surroundings during operation by means of the hydraulic machine (11) and/or a pretensioning source (15, 37). The drive system (1) provides a movement of the cylinder in a first direction by means of a volumetric flow rate of the hydraulic machine (11) and a volumetric flow rate from the equalization container (30, 37) and a movement in a second direction by means of a volumetric flow rate of the hydraulic machine (11) and a volumetric flow rate into the equalization container (30, 37). A speed operating mode and a power operating mode are provided by the differential cylinder (20).
F15B 7/00 - Systèmes de manœuvre utilisant la pression d'un fluide dans lesquels le mouvement produit est lié de façon définie au débit d'une pompe volumétriqueTélémoteurs
B30B 15/16 - Commande des presses actionnées pneumatiquement
B30B 15/20 - Commande des presses actionnées pneumatiquement commandant le mouvement alternatif du pilon commandant la vitesse du pilon, p. ex. vitesse d'approche, de la course de pressage ou de la course de retour
An energy storage assembly of capacitors (10) in a housing which is attached to a mounting surface (2). The mounting surface could be the inner surface of the rotary part (hub, (1)) of a wind turbine. The energy storage assembly being characterized in that it comprises a resiliently compressible material (40) situated between the energy storage element (capacitor) and a mounting surface. The resiliently compressible material serves to prevent damage to the energy storage caused by the movement of the wind turbine. The energy storage assembly acting as an emergency power supply for a pitch control mechanism of a wind turbine.
H01G 4/40 - Combinaisons structurales de condensateurs fixes avec d'autres éléments électriques non couverts par la présente sous-classe, la structure étant principalement constituée par un condensateur, p. ex. combinaisons RC
H01G 11/10 - Condensateurs hybrides ou condensateurs EDL multiples, p. ex. réseaux ou modules
H01G 11/82 - Fixation ou assemblage d’un élément capacitif dans un boîtier, p. ex. montage d’électrodes, de collecteurs de courant ou de bornes dans des récipients ou des encapsulations
H01G 17/00 - Combinaisons structurales de condensateurs ou d'autres dispositifs couverts par au moins deux groupes principaux différents de la présente sous-classe avec d'autres éléments électriques non couverts par la présente sous-classe, p. ex. combinaisons RC
H01G 2/06 - Dispositifs de montage spécialement adaptés pour le montage sur un support de circuit imprimé
F03D 80/80 - Disposition des composants dans les nacelles ou les tours
54.
MOVEMENT TRACKING AND SIMULATION DEVICE AND METHOD
Apparatus for dental simulation comprising: a display; one or more processors; a hand piece comprising a light emitter and an inertial measurement unit (IMU), wherein the IMU is in communication with at least one of the one or more processors, and wherein the IMU is configured to generate IMU position and orientation data, wherein the IMU position and orientation data describes the position and orientation of the hand piece; at least two cameras in communication with at least one of the one or more processors, wherein each of the at least two cameras is configured to generate a series of images using light emitted by the light emitter; wherein the one or more processors are configured to: receive the series of images from each of the at least two cameras, generate, based on two dimensional coordinate data derived from the series of images, three dimensional coordinate data identifying the position of the LED; receive the IMU position and orientation data;and further wherein the one or more processors are configured to combine the IMU position and orientation data and the three dimensional coordinate data to generate simulation instructions, and to display, on the display, a three dimension virtual image of an object and animate movement of the object according to the simulation instructions.
A computer-implemented method of generating a 3D model for dental simulation, comprising reading a file describing the surface of a 3D object having a volume; generating a voxel grid encompassing the 3D object, wherein the voxel grid contains a plurality of voxels; identifying a subset of voxels of the plurality of voxels which are located within the volume of the 3D object; generating a triangulated surface, wherein the triangulated surface encompasses the subset of voxels and defines the outer surface of the 3D model; assigning a density value to each voxel in the subset of voxels, wherein the subset of voxels defines the solid volume of the 3D model.
A dental simulation machine including a support having a support surface for engagement by a finger of a user to support a hand of the user, the support surface being moveable between a plurality of positions.
A method for controlling a wind turbine comprising a first control unit controlling the wind turbine or a part of the wind turbine, the first control unit having a first number of first states. In order to improve the safety integrity level of the wind turbine, the wind turbine further comprises a second control unit for controlling the first control unit, the second control unit having a second number of second states whereby the number of the second states of the second control unit is lower than the number of the first states of the first control unit. The second control unit maps to each second state a specific states of the number of first states of the first control unit as a target state and allows only a pre-defined set of transitions between the second states of the second control unit.
G05B 15/02 - Systèmes commandés par un calculateur électriques
G05B 19/045 - Commande à programme autre que la commande numérique, c.-à-d. dans des automatismes à séquence ou dans des automates à logique utilisant des machines à états logiques composées uniquement d'une mémoire ou d'un dispositif logique programmable contenant la logique de la machine commandée et dans lesquelles l'état de ses sorties dépend de l'état de ses entrées, ou d'une partie des états de sa propre sortie, p. ex. contrôleurs de décision binaire, automates finis
G05B 19/042 - Commande à programme autre que la commande numérique, c.-à-d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques
The invention relates to a hydraulic drive (1) comprising a working cylinder (2) and a travel cylinder (3) which is mechanically connected to the working cylinder (2). The working cylinder (2) and the travel cylinder (3) each comprise an upper and a lower cylinder chamber (21, 22, 31, 32), and all four cylinder chambers (21, 22, 31, 32) of the working and travel cylinder (2, 3) are connected to one another in a suitable manner in a closed pressure circuit (4) which is filled and prestressed with a hydraulic fluid (F). A rotational speed-variable hydraulic machine (5) with a first and second pressure connection (51, 52) is arranged in the pressure circuit (4) in order to conduct the hydraulic fluid (F) between the individual cylinder chambers (21, 22, 31, 32) of the working and travel cylinder (2, 3) during the operation (B) of the hydraulic drive (1). At least one first and second distributing valve (6, 7) are arranged in the pressure circuit (4) such that the respective valve switch positions (61, 62, 71, 72, 73) which are suitable for the different operating phases of the hydraulic drive (1) together with the suitably driven hydraulic machine (5) allow a common movement of the work and travel cylinder (2, 3) in one or the other piston movement direction (R1, R2). For this purpose, preferably only the first and the second distributing valve (6, 7) are arranged in the pressure circuit (4). The hydraulic drive (1) requires a minimum number of components, maintains a low installation complexity, improves the energy efficiency, can be constructed in a compact manner, and can be operated in a sufficiently variable manner.
F15B 11/02 - Systèmes comportant essentiellement des moyens particuliers pour commander la vitesse ou la puissance d'un organe de sortie
F15B 11/036 - Systèmes comportant essentiellement des moyens particuliers pour commander la vitesse ou la puissance d'un organe de sortie pour régler la puissance au moyen de servomoteurs comportant plusieurs chambres de travail
B30B 15/16 - Commande des presses actionnées pneumatiquement
B30B 1/32 - Presses, utilisant un élément pilonnant, caractérisées par le mode d'entraînement du pilon, la pression étant transmise au pilon ou à la platine de presse directement ou uniquement par l'intermédiaire d'organes travaillant en simple poussée ou traction par des plongeurs sous pression de fluide
F15B 7/00 - Systèmes de manœuvre utilisant la pression d'un fluide dans lesquels le mouvement produit est lié de façon définie au débit d'une pompe volumétriqueTélémoteurs
The invention relates to a safe hydraulic drive system and a process for operating such a drive system, moving a piston rod (23) of at least one cylinder (2), comprising at least one first cylinder chamber (21) and a second, separate cylinder chamber (22), which are connected to one another via a connecting line (3) to form a fluid-filled hydraulic circuit, and a hydraulic drive (4) for conveying (UN, US) the fluid (F) from one cylinder chamber (21, 22), via the connecting line (3), into the other cylinder chamber (21, 22), in which the connecting line (3) is arranged, wherein the connecting line (3) has at least one parallel system, between the hydraulic drive (4) and one of the two cylinder chambers (21, 22), consisting of at least one first sub-connection (31) with at least one first stop valve (311) and a second sub-connection (32) with a baffle (322) arranged therein, wherein the connecting line (3), excluding the second sub-connection (32), has a first flow resistance and the second sub-connection has a second flow resistance due to the baffle (322) arranged therein, which is greater than the first flow resistance for the fluid (F), wherein the drive system (1) is provided with at least one open first stop valve (311) in normal mode (N) and with a closed first stop valve (311) in safe mode (S) for conveying (UN) the fluid (F), and a suitably high second flow resistance has been selected so that a maximum permissible speed for the piston rod (23) is not exceeded in safe mode (S), even when an external force (FG) acts on the drive system (1) in the direction of movement (B) of the piston rod (23).
F15B 20/00 - Dispositions propres à la sécurité pour systèmes de manœuvre utilisant les fluidesUtilisation des dispositifs de sécurité dans les systèmes de manœuvre utilisant des fluidesMesures d'urgence pour les systèmes de manœuvre utilisant des fluides
F15B 11/04 - Systèmes comportant essentiellement des moyens particuliers pour commander la vitesse ou la puissance d'un organe de sortie pour commander la vitesse
This invention is about an apparatus (10) for measuring a hydraulic pressure of a hydraulic component (200), comprising a pressure sensor module (100) and a mounting plate (210), that is either an outer contour of the hydraulic component (200) or is connectable with the hydraulic component (200) in a substance-to-substance, form-locking and/or force-locking manner, wherein the pressure sensor module (100) comprises a housing (110), at least one pressure sensor (190) for determining the pressure of a fluid, at least one fluid connector (130) for hydraulic connection of the hydraulic component (200), at least one electrical connector comprising a conductive mating surface (125); the mounting plate (210) has a basic area (211) and at least one electrical connecting pin (222), whereby the connecting pin (222) spring loaded and is essentially perpendicular to the basic area (211) of the mounting plate (210), the first end (223) of the connecting pin (222) is oriented towards the basic area (211), the second end (224) of the connecting pin (222) is oriented away from the basic area (211), and the second end (224) of the connecting pin (222) is pressed, by means of an elastic element, away from the basic area (211) and towards the electrical connector (125) when the mounting plate (210) and the pressure sensor module (100) are assembled and the pressure sensor module (100) and/or the mounting plate (210) have at least one guiding element (341). The invention is characterized in that the pressure sensor (190), the fluid connector (130) and the electrical connector (125) are arranged within the housing (110), the mounting plate (210) is connectable with the pressure sensor module (100) in a force-locking manner and when the mounting plate (210) and the pressure sensor module (100) are assembled, the electrical connecting pin (222) is connected with the electrical connector (125) via its second end (224).
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
A method for testing the condition of a backup power supply of an axis in a wind turbine, wherein the backup power supply has an associated voltage, the method comprising: electrically isolating the axis of the wind turbine from a grid power supply; discharging the backup power supply for a first period of time at a first predefined current; measuring a first value of the voltage; operating the axis using the backup power supply until the voltage reaches a predefined second value; discharging the backup power supply for a second period of time at a second predefined current; measuring a third value of the voltage; and calculating a parameter based on at least the first and third values, wherein the parameter is characteristic of the condition of the backup power supply.
F03D 7/02 - Commande des mécanismes moteurs à vent les mécanismes moteurs à vent ayant l'axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
F03D 17/00 - Surveillance ou test de mécanismes moteurs à vent, p. ex. diagnostics
The present invention provides an electromechanical drive system (1) with at least one electromechanical drive unit (2) to actuate a movable component (3). The electromechanical drive unit (2) comprises a drive unit interface 20 for receiving drive unit control signals (DA), an electromechanical motor (21) controlled by actuation signals (AS) to actuate the component (3), a safety module (4) and a position sensor (5) connected to the safety module via a first data connection (51). The position sensor is adapted to monitor (S1) component (3) and/or motor (21) position and/or speed of the actuated component (3) and/or motor (21); where the safety module (4) is connected to the drive unit interface (20) for receiving the drive unit control signal (DA), and where the safety module is connected to the motor control unit (22) via a third data connection (41) to transmit actuation signals (AS) like actuation speed and desired component position to the motor control unit (22) for actuating (A) the component (3). The safety module (4) comprises as a safety function (SF) at least the actuation (A) of the component (3) in a resting or neutral position (FP), whereby the safety module (4) is configured to decide on basis of the sensor data received from the position sensor (5) whether to continue to actuate the component (3) until it has reached its resting or neutral position (FP) or to stop the actuation of the component (3).
G05B 19/4063 - Contrôle du système de commande général
F03D 7/02 - Commande des mécanismes moteurs à vent les mécanismes moteurs à vent ayant l'axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
63.
METHOD FOR PREPARING AN EMERGENCY ENERGY STORE FOR OPERATION
The invention describes and illustrates a method for preparing an emergency energy store having at least one energy storage element for operation, wherein the emergency energy store is designed to provide emergency electrical energy for at least one energy consumer, wherein the energy (EL) which can be drawn from the emergency energy store and/or the peak power (P max ) which can be drawn from the emergency energy store is determined and the readiness of the emergency energy store for operation is established as soon as the energy (EL) which can be drawn from the emergency energy store and/or the peak power (P max ) which can be drawn from the emergency energy store have/has reached a definable minimum value. A method for preparing an emergency energy store for operation, in which method the emergency energy store is discharged by means of a discharge device and the heat which is produced at the internal resistor (Ri) is used to heat the emergency energy store.
A medical simulator rest (106) has a model (116) mounted on a force sensing apparatus (118), which model (116) can be used as a hand rest providing force / displacement response to a simulation.
A medical simulator handpiece (112; 114) has a body (156; 180), a first formation (157; 184) representing a first medical tool and is characterised by a second formation (159, 161; 186) representing a second, different medical tool in which the first and second formations are connected and spaced apart to permit a user to manipulate one or other of the first and second formations.
A medical procedure simulator (100) has a computer (102) configured to run medical simulation software to simulate a medical procedure; at least one handpiece (112, 114) configured to be held in the hand of a user and manipulated by the user in a real space, which handpiece comprises an inertial measurement unit (220) for creation of position and / or orientation data of the handpiece in real space; and, a data link (222) to the computer from the handpiece for transmission of the position and / or orientation data.
A movement apparatus (10) for a limb e.g. a human shoulder (S) has a series of push rods (76, 88) and a torque rod (100) extending from a base (11) to a human-machine interface (22) to apply torques thereto without the need for mechanical joints proximate the biological joint.
The invention relates to a hydraulic drive (1) comprising a working cylinder (2) and a travel cylinder (3) which is mechanically connected to the working cylinder (2). The working cylinder (2) and the travel cylinder (3) each comprise an upper and a lower cylinder chamber (21, 22, 31, 32), and all four cylinder chambers (21, 22, 31, 32) of the working and travel cylinder (2, 3) are connected to one another in a suitable manner in a closed pressure circuit (4) which is filled and prestressed with a hydraulic fluid (F). A rotational speed-variable hydraulic machine (5) with a first and second pressure connection (51, 52) is arranged in the pressure circuit (4) in order to conduct the hydraulic fluid (F) between the individual cylinder chambers (21, 22, 31, 32) of the working and travel cylinder (2, 3) during the operation (B) of the hydraulic drive (1). At least one first and second distributing valve (6, 7) are arranged in the pressure circuit (4) such that the respective valve switch positions (61, 62, 71, 72, 73) which are suitable for the different operating phases of the hydraulic drive (1) together with the suitably driven hydraulic machine (5) allow a common movement of the work and travel cylinder (2, 3) in one or the other piston movement direction (R1, R2). For this purpose, preferably only the first and the second distributing valve (6, 7) are arranged in the pressure circuit (4). The hydraulic drive (1) requires a minimum number of components, maintains a low installation complexity, improves the energy efficiency, can be constructed in a compact manner, and can be operated in a sufficiently variable manner.
F15B 11/02 - Systèmes comportant essentiellement des moyens particuliers pour commander la vitesse ou la puissance d'un organe de sortie
B30B 15/16 - Commande des presses actionnées pneumatiquement
F15B 11/036 - Systèmes comportant essentiellement des moyens particuliers pour commander la vitesse ou la puissance d'un organe de sortie pour régler la puissance au moyen de servomoteurs comportant plusieurs chambres de travail
A movement simulator [100] has at least three translational degrees of freedom and has at least three actuator assemblies [106, 108, 110] each of which having a four bar parallelogram/trapezoidal link arrangement. A stiffener [214] is also disclosed.
The invention relates to a hydrostatic radial piston machine, in particular a hydrostatic radial piston machine for actuating a differential cylinder. According to the invention, the hydrostatic machine of radial piston design has a control pin in a housing, wherein the hydrostatic machine has three hydraulic working connectors. The first working connector can be connected to the piston side of a differential cylinder, whereas the second working connector can be connected to the rod side of the differential cylinder. Finally, the third working connector can be connected to a tank. As a result of this arrangement, the differential cylinder can be operated directly with the aid of a single hydrostatic machine, wherein the connection of proportional or regulating valves in between can be dispensed with.
F04B 1/04 - "Machines" ou pompes multicylindres caractérisées par le nombre ou la disposition des cylindres ayant des cylindres disposés en étoile ou en éventail
F04B 1/047 - "Machines" ou pompes multicylindres caractérisées par le nombre ou la disposition des cylindres ayant des cylindres disposés en étoile ou en éventail avec des éléments actionnants ou actionnés aux extrémités extérieures des cylindres
F04B 1/053 - "Machines" ou pompes multicylindres caractérisées par le nombre ou la disposition des cylindres ayant des cylindres disposés en étoile ou en éventail avec des éléments actionnants ou actionnés aux extrémités intérieures des cylindres
F03C 1/34 - Organes de distribution spécialement adaptés à des machines motrices à cylindres multiples
F03C 1/40 - Commande spécialement adaptée à ces machines motrices
F03C 1/047 - Machines motrices à liquide à pistons alternatifs avec des cylindres multiples et caractérisées par le nombre ou la disposition des cylindres avec cylindres disposés en étoile ou en éventail les moyens coopérant avec un élément actionné aux extrémités extérieures des cylindres
F03C 1/053 - Machines motrices à liquide à pistons alternatifs avec des cylindres multiples et caractérisées par le nombre ou la disposition des cylindres avec cylindres disposés en étoile ou en éventail les moyens coopérant avec un élément actionné aux extrémités intérieures des cylindres
A fail-safe actuation system comprising an actuator having first and second chambers, a working circuit with a motor/pump device configured to actuate the actuator in an operative state, and a safety circuit configured to move the actuator into the safety position in a failure state, the safety circuit having a tank that holds pressurized fluid and that, in the failure state, is automatically connected to the first chamber via a switching valve, and having a drain valve that, in the failure state, is moved into a through-flow position in order to drain fluid out of the second chamber, the safety circuit configured such that, in the operative state, an inflow into the actuator—in a manner that is decoupled from the tank—is established by the working circuit, and, in the failure state, an inflow from the tank into the first chamber—in a manner that is completely decoupled from the working circuit—is created by the safety circuit, whereby a short-circuit fluid connection is provided between the first and second chambers that, in the failure state, is through-connected in order to generate a short-circuit flow between the first and second chambers.
F16D 31/02 - Accouplements ou embrayages à fluide avec des groupes de pompage du type volumétrique, c.-à-d. dans lesquels passe un volume déterminé de liquide par tour de pompe utilisant des pompes à pistons ou à plongeurs travaillant dans des cylindres
F15B 1/02 - Installations ou systèmes comprenant des accumulateurs
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
G05D 16/20 - Commande de la pression d'un fluide caractérisée par l'utilisation de moyens électriques
F03D 7/02 - Commande des mécanismes moteurs à vent les mécanismes moteurs à vent ayant l'axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
F15B 15/17 - Dispositifs actionnés par fluides pour déplacer un organe d'une position à une autreTransmission associée à ces dispositifs caractérisés par la structure de l'ensemble moteur le moteur étant du type à cylindre droit du type à piston différentiel
72.
Delay-minimized detection of an auxiliary control variable
x and from an estimation error, whereby the estimation error is calculated from a comparison between the detected output variable and the integrated auxiliary control variable.
F04B 49/00 - Commande des "machines", pompes ou installations de pompage ou mesures de sécurité les concernant non prévues dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
G05B 11/42 - Commandes automatiques électriques avec les dispositions nécessaires pour obtenir des caractéristiques particulières, p. ex. proportionnelles, intégrales, différentielles pour obtenir une caractéristique à la fois proportionnelle et dépendante du temps, p. ex. P.I., P.I.D.
G05B 13/02 - Systèmes de commande adaptatifs, c.-à-d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques
F04B 43/12 - "Machines", pompes ou installations de pompage ayant des organes de travail flexibles à action péristaltique
A manipulator (110) for e.g. gait training is constructed from an Evans mechanism with an additional degree of freedom to provide a two dimensional workspace.
A linkage (100, 200) having a plurality of small angle links (114, 116; 208, 212) with axes of rotation directed to a single point to allow movement of an recipient object without moving the point of action of an applied force (F).
A driving simulator (100) comprises a slide rail (102) on which a yaw table (104) is mounted on which a hexapod (106) is mounted in turn, the hexapod providing acceleration input to a cabin (108) surrounded by a projection dome (110) carried on the static part of the yaw table (104).
G09B 9/04 - Simulateurs pour l'enseignement ou l'entraînement pour l'enseignement de la conduite des véhicules ou autres moyens de transport pour l'enseignement de la conduite des véhicules terrestres
A gait rehabilitation apparatus (12) uses a mechanical shadow leg (42) positioned behind the biological leg (18) to provide forces and guide the biological leg in use.
The invention relates to a converter system, comprising a rectifier (1) and at least two inverters (2), wherein the rectifier (1) can be supplied with energy by an alternating-current source (3), the rectifier (1) is connected to each of the inverters (2) by means of a common direct-current circuit (4) in order to supply energy to the inverter (2), and each inverter (2) can be connected to a respective electrical load (5) in order to supply energy to the respective load (5). According to the invention, a converter system that is especially reliable is realized in that a decoupling device (6) is arranged in at least one of the connections between the direct-current circuit (4) and one of the inverters (2), wherein the decoupling device (6) prevents electrical energy coming from the inverter (2) from being transmitted in the direction of the direct-current circuit (4). The invention further relates to a wind or water power plant, comprising a rotor, wherein the rotor has a rotor hub and at least two rotor blades and the rotor blades can be rotated about the respective longitudinal axes thereof by electrical loads (5). According to the invention, a wind or water power plant that is especially reliable is realized in that the wind or water power plant has a converter system according to one of the claims 1 to 11, wherein the converter system supplies the loads (5) with energy.
H02M 5/458 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant alternatif, p. ex. pour changement de la tension, pour changement de la fréquence, pour changement du nombre de phases avec transformation intermédiaire en courant continu par convertisseurs statiques utilisant des tubes à décharge ou des dispositifs à semi-conducteurs pour transformer le courant continu intermédiaire en courant alternatif utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans 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
78.
SYSTEM COMPRISING A BATTERY TRAY AND A TRAY HOLDER FOR MOUNTING THE BATTERY TRAY IN A BATTERY BOX OF A WIND POWER INSTALLATION
The invention relates to a system comprising at least one battery tray and a tray holder, in particular for mounting the at least one battery tray in a battery box of a wind power installation, wherein the tray holder has a bearing side by means of which the battery tray can be placed on the tray holder, characterized in that the tray holder has an interlocking receptacle, wherein the battery tray is placed on the bearing side in a mounting position when it is held in an interlocking manner in the interlocking holder by means of a first side, wherein the tray holder has, at a distance from the interlocking holder, a fastening means for a force-fitting connection of a second side of the battery tray, and wherein the second side of the battery tray is prealigned in relation to the fastening means when the battery tray is in the mounting position.
What is described and illustrated is: a switchgear cabinet (1) for a pitch system comprising a housing body (2), electrical devices (3) and an outer supporting framework (4), wherein the outer supporting framework (4) is arranged outside the housing body (2). A switchgear cabinet (1) for a pitch system which can be produced easily and in a material-saving manner is realized according to the invention by virtue of the fact that the switchgear cabinet (1) has an inner supporting framework (5) and at least one supporting framework connecting means (6), wherein the inner supporting framework (5) is arranged within the housing body (2), the one or several supporting framework connecting means (6) pass through the wall (7) of the housing body (2), the one or several supporting framework connecting means (6) connect the inner supporting framework (5) to the outer supporting framework (4), and the electrical devices (3) are fastened on the inner supporting framework (5).
H02B 1/04 - Montage sur ces dispositifs d'interrupteurs ou d'autres dispositifs en général, l'interrupteur ou le dispositif étant muni ou non d'une enveloppe
H02B 1/40 - Coffrets murauxParties constitutives ou accessoires
F03D 11/00 - Détails, parties constitutives ou accessoires non couverts par les autres groupes de la présente sous-classe ou présentant un intérêt autre que celui visé par ces groupes
Disclosed is a fail-safe fluidic actuation system (1) having a safety position, comprising a control element (2) having at least one first and one second chamber (3, 4); having a working circuit (5) with a motor/pump device (6), wherein the control element can be actuated by means of the working circuit at least in the operational state. Furthermore, the actuating system comprises a discharge valve (9) which, in a failure state, is placed into a pass-through position in order to discharge fluid from the second chamber, and the safety circuit is designed such that, in the operational state, an inflow decoupled from the store can be generated into the control element by means of the working circuit with the motor/pump device, wherein by means of the safety circuit, in a failure state, an inflow fully decoupled from the working circuit with the motor/pump device is provided into the first chamber by means of the store, wherein the control element has three chambers, and wherein the safety circuit is designed such that, in the operational state, an inflow decoupled from the store can be generated into the third chamber (15) by means of the working circuit with the motor/pump device.
F16D 31/02 - Accouplements ou embrayages à fluide avec des groupes de pompage du type volumétrique, c.-à-d. dans lesquels passe un volume déterminé de liquide par tour de pompe utilisant des pompes à pistons ou à plongeurs travaillant dans des cylindres
F15B 1/02 - Installations ou systèmes comprenant des accumulateurs
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
G05D 16/20 - Commande de la pression d'un fluide caractérisée par l'utilisation de moyens électriques
F03D 7/02 - Commande des mécanismes moteurs à vent les mécanismes moteurs à vent ayant l'axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
F15B 15/17 - Dispositifs actionnés par fluides pour déplacer un organe d'une position à une autreTransmission associée à ces dispositifs caractérisés par la structure de l'ensemble moteur le moteur étant du type à cylindre droit du type à piston différentiel
The invention relates to a wind turbine (1) having a pitch drive (3) for rotor blade adjustment, wherein the drive control (31) of the pitch drive (3) reacts to disturbing torques (SM) during operation of the wind turbine (1) in a balancing manner, and to a corresponding method for drive control (31). For this purpose, the wind turbine (1) comprises at least one load sensor (4), which is arranged in the area of the pitch drive (3) in order to determine a mechanical load on the drive mechanism (A) due to a disturbing torque (SM) and is provided in order to output a sensor signal (SS) corresponding to the mechanical load, and the drive control (31) comprises a feedback means (311) for feeding back (R) a torque signal (BDS) evaluated in accordance with the sensor signal (SS). Thus, a wind turbine having rotor blade adjustment and having an increased service life, increased reliability, and increased availability can be provided.
F03D 7/02 - Commande des mécanismes moteurs à vent les mécanismes moteurs à vent ayant l'axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
A motion simulator is constructed from a base driving an intermediate member via a 6 DOF hexapod, and a platform driven by a 2DOF simulator is provided on the intermediate member to supplement pitch and roll.
Drive system comprising a synchronous motor (1), an inverter (2) and a DC voltage source (3), wherein the synchronous motor (1) has a position sensor (4), an output signal can be generated by the position sensor (4), a DC voltage can be supplied by the DC voltage source (3) to the inverter (2), the DC voltage can be converted by the inverter (2) into an n-phase AC voltage, n being a whole number greater than one, the inverter (2) is connected via n connection lines to the synchronous motor (1) and the synchronous motor (1) can be operated by the n-phase AC voltage, wherein the drive system has a logic element (5), the output signal of the position sensor (4) can be supplied to the logic element (5), precisely one control signal corresponding to the output signal can be generated by the logic element (5) when the output signal is received, the number of different control signals that can be generated is at most 3n- 2n+1 + 1, the control signal can be supplied to the inverter (2) and the inverter (2) can be controlled by the control signal.
H02P 27/14 - 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 avec au moins trois niveaux de tension
G05B 19/35 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique caractérisée par systèmes de commande de positionnement ou de commande de contournage, p. ex. pour commander la position à partir d'un point programmé vers un autre point ou pour commander un mouvement le long d'un parcours continu programmé utilisant un dispositif de mesure analogique pour commande point par point
F03D 7/02 - Commande des mécanismes moteurs à vent les mécanismes moteurs à vent ayant l'axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
A movement simulator [100] has at least three translational degrees of freedom and has at least three actuator assemblies [106, 108, 110] each of which having a four bar parallelogram / trapezoidal link arrangement. A stiffener [214] is also disclosed.
Disclosed is a fail-safe fluidic actuation system (1) having a safety position, comprising a control element (2) having at least one first and one second chamber (3, 4); having a working circuit (5) with a motor/pump device (6), wherein the control element can be actuated by means of the working circuit at least in the operational state. Furthermore, the actuating system comprises a discharge valve (9) which, in a failure state, is placed into a pass-through position in order to discharge fluid from the second chamber, and the safety circuit is designed such that, in the operational state, an inflow decoupled from the store can be generated into the control element by means of the working circuit with the motor/pump device, wherein by means of the safety circuit, in a failure state, an inflow fully decoupled from the working circuit with the motor/pump device is provided into the first chamber by means of the store, wherein the control element has three chambers, and wherein the safety circuit is designed such that, in the operational state, an inflow decoupled from the store can be generated into the third chamber (15) by means of the working circuit with the motor/pump device.
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
The invention relates to a pitch drive device (10) capable of emergency operation for adjusting a rotor blade pitch of a wind or water power plant. The pitch drive device (10) comprises an inverter device (14) and a three-phase current drive motor. The drive motor is implemented as a three-phase IPM synchronous motor (12) (Interior Permanent Magnet). A direct current power storage device (20) can advantageously be substantially directly connected to an intermediate direct current circuit (18), at least for emergency operation, between a rectifier device (16) and the inverter device (14) for at least briefly supplying power to the synchronous motor (12), so that the IPM synchronous motor (12) can be operated at least briefly under speed control when the intermediate circuit voltage UZK is falling. The invention enables speed-controlled emergency operation of the pitch drive device at high torque when an intermediate circuit voltage UZK is falling in emergency operation, wherein the direct current energy storage device can, for example, improve the efficiency as an energy buffer, and reduce current transfer via the rotor slip ring.
H02J 9/04 - Circuits pour alimentation de puissance de secours ou de réserve, p. ex. pour éclairage de secours dans lesquels le système de distribution est déconnecté de la source normale et connecté à une source de réserve
The invention relates to a pitch drive device (26) for a wind power or hydroelectric power station (22) comprising a synchronous motor (13) and a motor operation switchover unit (21) for switching between normal operation and emergency operation. To do so, the synchronous motor (13) is operable in normal operation with three-phase AC and in emergency operation with DC. The invention furthermore relates to a method for operating a pitch drive device (26) of this type.
H02K 23/64 - Moteurs spécialement adaptés pour fonctionner au choix sous courant alternatif ou sous courant continu
H02P 29/00 - Dispositions pour la régulation ou la commande des moteurs électriques, adaptées à des moteurs à courant alternatif et à courant continu
B60L 11/18 - utilisant de l'énergie fournie par des piles primaires, des piles secondaires ou des piles à combustibles
H02P 25/02 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de moteur ou par des détails de structure caractérisés par le type de moteur
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
F03D 9/00 - Adaptations des mécanismes moteurs à vent pour une utilisation particulièreCombinaisons des mécanismes moteurs à vent avec les appareils qu’ils entrainentMécanismes moteurs à vent spécialement adaptés à l’installation dans des endroits particuliers
H02K 27/12 - Moteurs ou génératrices à courant alternatif à collecteur mécanique fonctionnant en polyphasé
88.
SKEWED-AXIS THREE DEGREE-OF-FREEDOM REMOTE-CENTER GIMBAL
A remote-center three degree-of-freedom gimbal (20) includes: a support (21 ); a first link (24) mounted on the support for pivotal movement about a first axis (z-z); a second link (25) mounted on the first link for pivotal movement about a second axis (x-x); and a member (26) mounted on the second link for pivotal movement about a third axis (y-y); wherein said axes intersect at an imaginary point (28); and wherein said first and second links are configured as arcuate segments.
The present invention relates generally to a weapon having an eccentrically-pivoted barrel (1) that is mounted on a movable base (2), and to a method of elevating and stabilizing such a barrel. A drive mechanism (3) acts between the barrel and the base to permit and enable the elevation of the barrel relative to the base to be selectively changed. A compensation device acts between the barrel and base to compensate for the unbalance of the barrel. The compensation device includes a gyroscope (13) mounted on the barrel and arranged to provide an output signal, a set point generator (12), a closed-loop control device (10) and an actuating element (16). The actual position of the barrel is sensed by the gyroscope, which supplies its output signal to the set point generator. The set point generator produces a set force value as a function of the gyroscope output signal. The set force value is supplied to the closed-loop control device, which produces a set point value that is, in turn, supplied to the actuator for controllably changing the elevation of the barrel.
An adjustment and stabilization unit (1), such as for a weapon, includes a movable platform (3), a rotational mass (2) mounted on the platform and stabilized in inertial space, and an adjustment drive (6) for adjusting the rotational mass. The adjustment drive includes a driving device (7) connecting the adjustment drive with the rotational mass, a force-sensing device (16) for measuring torque, and at least one stabilization control circuit for controlling the rotary adjustment drive by means of the measured torque. The force-sensing device (16) has an annular design and is arranged between the platform (3) and the adjustment drive (6). The driving device has a shaft (10) that extends through force-sensing device (16). The force-sensing device measures the torque transmitted between the adjustment drive and the platform, and being transmitted to the adjustment drive as a result of an acceleration of the rotational mass.
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