Abstract: The linear actuator comprises a double-chamber solenoid pump comprising at least one pump coil, a multi-way valve and at least one pump armature that can be moved by energizing the at least one pump coil and is provided with a switching armature by means of which the multi-way valve can be switched and which can be moved by energizing the at least one pump coil. In the method, both the switching armature and the pump armature are moved by energizing the pump coil.

Abstract: Embodiments relate to a magnetic coupling, comprising a first coupling part, that can be rotated about an axis of rotation, a second coupling part, that can be rotated about the axis of rotation, and at least one coil, that is configured to generate a magnetic field along the axis of rotation through the first and second coupling parts for contactless transmission of a torque between the first and second coupling parts. A magnetic coupling having a magnetic field along the axis of rotation reduces forces that act on the coupling parts in a radial direction.

Abstract: A mechanical circuit breaker unit for interrupting a line includes a contact arrangement and an electromagnetic drive. The contact arrangement has first and second fixed contacts and a guided moving contact. The electromagnetic drive moves the moving contact. The separating unit can assume a first state and a second state. No electric connection exists between the first and second fixed contacts in the first state. The moving contact electrically connects the two fixed contacts to each other in the second state. The separating unit can be transferred from the second state into the first state by moving the moving contact. The second fixed contact has a recess for receiving the moving contact, and the moving contact engages at least partly into the recess when the separating unit is in the first state.

Abstract: In addition to liquid in a thermal volume-neutral stroke transmitter, first and/or second displacement body(ies) is/are positioned in the stroke transmitter, for displacing the liquid. These three materials in the closed system are designed so that the stroke transmitter remains pressure-free during temperature changes.

Abstract: The hydraulic temperature compensator has at least one longitudinally extensible hydraulic chamber and a gas-filled chamber which is at least partly enclosed by the hydraulic chamber, wherein the hydraulic chamber is subdivided into a first sub-chamber and a second sub-chamber which are hydraulically connected to each other by at least one throttle point and wherein the second sub-chamber adjoins the gas-filled chamber. The stroke transmitter has at least the hydraulic temperature compensator, a stroke actuator acting on the temperature compensator, and a further hydraulic chamber which is fluidically connected to the first sub-chamber of the hydraulic chamber of the temperature compensator, wherein the further hydraulic chamber is in fluidic connection with a displaceably mounted actuating element.

Abstract: The embodiments relate to an actuator device including a drive unit and an output unit. The output unit includes a first translation unit having a first output and a second translation unit, connected in a fluid manner to the first translation unit via a pipeline system, having a second output. The drive unit is connected to the pipeline system in a fluid manner. To deflect the outputs, a fluid may be exchanged between the first translation unit and the second translation unit by the drive unit. The first translation unit and the second translation unit each have a pre-clamping element. The pre-clamping elements are supported in the opposite direction against a movably mounted clamping.

Abstract: A method for driving a vehicle comprising at least two motors is provided. If a plurality of motors are fed from an intermediate circuit via inverters, the current in the intermediate circuit has a plurality of harmonics (?5th, ?3th, ?1st, +1st, +3rd, +5th). To prevent coupling capacitors of the intermediate circuit becoming over-burdened, the switching frequency of the inverters is shifted in such a manner that the harmonics no longer fall into a resonance range.

Abstract: A mechanical circuit breaker unit for interrupting a line includes a contact arrangement and an electromagnetic drive. The contact arrangement has first and second fixed contacts and a guided moving contact. The electromagnetic drive moves the moving contact. The separating unit can assume a first state and a second state. No electric connection exists between the first and second fixed contacts in the first state. The moving contact electrically connects the two fixed contacts to each other in the second state. The separating unit can be transferred from the second state into the first state by moving the moving contact. The second fixed contact has a recess for receiving the moving contact, and the moving contact engages at least partly into the recess when the separating unit is in the first state.

Abstract: The invention relates to a lifting system, comprising a piezoelectric actuator, a support, and a hydraulic stroke multiplier having an input and an output side, wherein with the input side of the hydraulic stroke multiplier said hydraulic stroke multiplier is tied to the piezoelectric actuator, and with the output side of the hydraulic stroke multiplier said hydraulic stroke multiplier is tied to the support. In the method for electrically testing an electronic component, the component is placed on the support of such a lifting system, and is lifted for positioning relative to a test contact. The vibration damper comprises such a lifting system. The machine assembly has a machine and such a vibration damper.

Abstract: An electrical supply line for operating a first electric motor includes a first converter for supplying electric energy to the first electric motor in dependence of a first control variable, a connected network connecting the first converter to a DC voltage source, an oscillation suppression controller for generating first correction information, and a first correction module for generating the first control variable by taking into consideration an operating parameter of the first electric motor and by taking into consideration the first correction information. An electrical supply system includes two of the supply lines. A corresponding method for operating an electric drive is also described.

Abstract: A charging installation for inductively charging an electrical energy storage device of a vehicle, has a vehicle-side coil and a ground-side coil. At least one temperature sensor is disposed in the region of the ground-side coil and at least one heat source is disposed in the region of the vehicle-side coil.

Abstract: The invention relates to a torque transmission device (3), the stiffness of which can be variably adjusted, to an actuator (1) having such a torque transmission device (3), and to a robot (26). The torque transmission device (3) according to the invention has an inner ring (5), an outer ring (4) that is arranged as to be rotatable to the inner ring (5) from a neutral position (25) in a positive rotational direction (17) or a negative rotational direction (18) to the inner ring, at least one pair of receiving bellows (9, 10), comprising a positive receiving bellows (9) and a negative receiving bellows (10), at least one gas pressure spring (13), and an adjusting unit connected to the at least one gas pressure spring (13).

Abstract: Damage to an inverter due to an excessively high start-up current, when using space vector control without a voltage sensor in conjunction with small connection inductances, can be prevented with a method for controlling the inverter, and with a corresponding controller, wherein the controller is configured to transmit in a start-up phase of an inverter circuit a control signal to a control input of the inverter circuit, wherein the control signal simultaneously switches three first semiconductor switches, which are connected to a first DC voltage terminal of the inverter circuit, temporarily into a conducting state.

Abstract: A brake may include a bellows having an opening that leads into the interior of the bellows, a brake element joined to the bellows, a rotational element arranged at a distance from the brake element, a fluid reservoir or a pressure production unit, and a first conduit between the fluid reservoir or the pressure production unit and the opening.

Abstract: An actuating device for a vacuum switching tube has a connecting element which can be connected to an electric contact of the vacuum switching tube, an electromagnetic actuating device for displacing the connecting element between a first and a second position, and a retaining yoke, relative to which the connecting element can be displaced and has a first magnetic element. The first magnetic element generates a first and a second magnetic circuit in the retaining yoke. The actuating device further has a ferromagnetic retaining anchor, which is arranged on the connecting element. The retaining anchor is located in the first position of the connecting element in the first magnetic circuit and in the second position of the connecting element in the second magnetic circuit. The connecting element is held in the first and in the second position by a respective magnetic force between the retaining yoke and the retaining anchor.

Abstract: A method for driving a vehicle comprising at least two motors is provided. If a plurality of motors are fed from an intermediate circuit via inverters, the current in the intermediate circuit has a plurality of harmonics (?5th, ?3th, ?1st, +1st, +3rd, +5th). To prevent coupling capacitors of the intermediate circuit becoming over-burdened, the switching frequency of the inverters is shifted in such a manner that the harmonics no longer fall into a resonance range.

Abstract: An actuator device for producing a linear movement, has a hydraulic actuator which includes a first piston element for actuating the actuator and a second piston element for producing the linear movement. The piston elements are assigned respective fluidically coupled working chambers, the volumes of which can be changed by movement of the respective piston element. A piezoelectric actuator is provided for exerting a force on the first piston element.

Abstract: In order to store excess kinetic energy, an energy storage device and an operating method are described, in which the kinetic energy can be partially converted into electrical energy by a first electric machine using at least two electric machines arranged on a shaft and can be partially converted into additional kinetic energy, such as rotational energy, by a second electric machine. The method for energy storage of excess kinetic energy provides for converting kinetic energy partially into electric energy and partially into additional kinetic energy, such as rotational energy.

Abstract: A simplified magnetic reluctance coupling for coupling a first shaft to a second shaft, has a hollow cylindrical stator which has at least one magnet that is/are distributed around the circumference of the stator. The reluctance coupling also has a first rotor, which is supported in such a way that it can rotate within the stator, is connected to a first shaft in a rotationally fixed manner, and has a plurality of ferromagnetic first portions distributed around the circumference thereof and spatially separated from one another, as well as a second rotor, which is supported in such a way that it can rotate within the first rotor, is connected to the second shaft in a rotationally fixed manner, and has a plurality of ferromagnetic second portions distributed around the circumference thereof.

Abstract: For an object on a bearing mounting having a magnetic bearing providing a magnetic field generally produced by an electromagnet, the bearing is regulated based on a position of the object relative to the bearing. The position of the object is determined by reference to an estimate of the inductance obtained using a least squares method, in which the electrical resistance of the bearing is taken into account. The resistance is subject to variations, for example due to temperature fluctuations; however, the electrical resistance can be estimated by regulating the inductance error, ?{circumflex over (L)}={circumflex over (L)}2,sLS?{circumflex over (L)}1,sLS down to zero, where the resistance adjustment facility may be a low-pass filter and an integration controller.