Abstract: A valve apparatus (4) is provided for a housing (2) of an electrochemical current source (1). Furthermore, the magnetic valve apparatus (4) is provided for, among other things, battery housings, fuel cell housings as well as chemical or biological reactors. As a result of using a magnetic valve apparatus (4) as an excess pressure valve, the housing (2) can be designed to operate safely even after years of use, and in addition, the valve apparatus (4) can automatically change back into the closed position after an opening and a pressure degradation and can thus build up again a protection against the penetration of fluids into the inner space (5) of the housing without external action.

Abstract: An angle-measuring system comprising at least one transmitter provided with a number of complementary signal-generating elements disposed in pairs and creating a pattern of signals. The elements create a reference mark irregularly configured at least at one spot. A device for acquiring the signals and an evaluation unit are also part of the angle-measuring system. The device is provided with at least one first sensor and one second sensor.

Abstract: An angle-measuring system comprising at least one transmitter provided with a number of complementary signal-generating elements disposed in pairs and creating a pattern of signals. The elements create a reference mark irregularly configured at least at one spot. A device for acquiring the signals and an evaluation unit are also part of the angle-measuring system. The device is provided with at least one first sensor and one second sensor.

Abstract: A bearing arrangement for a vibrating component having a bearing supported on a carrier for the vibrating component and having a damper which interacts with the carrier and has an inertial mass that is movable relative to the carrier by a damper drive. The damper drive being provided with a drive circuit which includes at least one first sensing element of the vibrating component and a downstream signal generator which generates two harmonic, out-of-phase first signals, whose frequencies correspond to each other and to vibrations of a machine part, as well as a second signal characterizing this frequency. The second signal is supplied to characteristic curve elements whose output signals are multiplied by the first signals of the signal generator, and the third signals obtained in this manner are added up in pairs. The signals obtained in this manner each are multiplied by a fourth signal, generated by a second sensing element, characterizing the relative movements of the carrier.

Abstract: An active, vibration-countering mount assembly for a vibrating component is disclosed. The mount assembly comprises a supported mount supported on a machine element, a supporting mount supported via a spring element on the supported mount, and an inertial mass, movable back and forth by means of a drive parallel to the direction of the vibrations introduced by the vibrating component. The inertial mass is joined to the supported mount by a spring such that the inertial mass and the spring are not contacted by a liquid.

Abstract: A mount assembly for a vibrating component, which mount includes a supported mount supported on a machine part; a supporting mount supported via a spring element on the supported mount; and an inertial mass, movable back and forth by a drive in a direction parallel to the direction of the vibrations introduced during operation. The inertial mass is spring-mounted and is controllably movable in a direction opposite from the exciting vibration and is joined to the supported mount by a spring, such that the inertial mass and spring are not contacted by a liquid. A control system is used to control the movement of the inertial mass.

Abstract: A hydraulically damped rubber bearing, that supports a vibrating mechanical subassembly on a substructure, has an actuator with an electromagnetic drive mechanism associated with a fluid filled chamber. The drive mechanism is responsive to performance characteristic controls which are electrically connected to at least one signal emitter in the subassembly and have a final stage in the front of a power amplifier.