Abstract: The invention relates to an electrical machine having a housing, comprising two magnetic field elements arranged on the inside thereof, between which a retaining spring is arranged adjacent to the inside wall of the housing. The retaining spring has a linear carrier section extending in the axis direction of the housing and at least two spring clips which apply a holding force to the opposing magnetic field elements.

Abstract: The invention relates to a bushing (30) for a drive unit, in particular an eccentric bushing (30) for a wiper drive of a windshield wiper, having an axial mounting section (32) and a radial flange section protruding therefrom, wherein the bushing (30) can be mounted having the mounting section (32) and having the flange section in/on a component, wherein the bushing (30) has a relief channel (322, 342) such that a fluid can flow through the relief channel (322, 342) upon mounting of the bushing (30) in/on the component and/or in a mounted state on/in the component. The invention furthermore relates to a drive unit, in particular a wiper drive for a windshield wiper of a motor vehicle, having a bushing (30) according to the invention.

Abstract: The invention relates to a housing (2) for a drive device, especially for an adjusting device and/or a windshield wiper drive in a motor vehicle, comprising a pressure compensating membrane (4) obturating a housing opening (7). The invention is characterized in that the pressure compensating membrane (4) has a peripheral sealing surface (11) which extends continuously in the direction of circumference. The invention further relates to a drive device and to a method for testing the operativeness of a pressure compensating membrane (4).

Abstract: An electrical drive, especially for driving a windshield wiper system of a motor vehicle, comprises a worm gear having a worm shaft and a drive motor having a rotor. The rotor and the worm gear are arranged on axial sections of a shaft. The electrical drive furthermore comprises two shaft bearings on which the shaft is received, only one of said shaft bearings being arranged on the shaft in the vicinity of the rotor.

Abstract: The invention relates to a bushing (30) for a drive unit, in particular an eccentric bushing (30) for a wiper drive of a windshield wiper, having an axial mounting section (32) and a radial flange section protruding therefrom, wherein the bushing (30) can be mounted having the mounting section (32) and having the flange section in/on a component, wherein the bushing (30) has a relief channel (322, 342) such that a fluid can flow through the relief channel (322, 342) upon mounting of the bushing (30) in/on the component and/or in a mounted state on/in the component. The invention furthermore relates to a drive unit, in particular a wiper drive for a windshield wiper of a motor vehicle, having a bushing (30) according to the invention.

Abstract: The invention relates to a sealing ring (10) having a first sealing surface (26) arranged on the inner circumference thereof and at least one second sealing surface (13, 14) arranged on the outer circumference thereof. According to the invention, a compensation region (17, 18) that can be at least partially deformed in an elastic manner in the axial direction is arranged on at least one of the two faces of the sealing ring (10).

Abstract: The invention relates to a motor gearbox unit (1), particularly for a windshield wiper system in a motor vehicle, comprising an electric motor (12) and a gearbox (14) driven by the electric motor (12), and a housing (2). According to the invention, the housing 2) is designed as a shell housing receiving both the electric motor (12) and the gearbox (14) and comprises a first and a second shell part (3, 4).

Abstract: The invention relates to a housing (2) for a drive device, especially for an adjusting device and/or a windshield wiper drive in a motor vehicle, comprising a pressure compensating membrane (4) obturating a housing opening (7). The invention is characterized in that the pressure compensating membrane (4) has a peripheral sealing surface (11) which extends continuously in the direction of circumference. The invention further relates to a drive device and to a method for testing the operativeness of a pressure compensating membrane (4).

Abstract: An armature for a direct current motor, in particular for a permanent-magnet-excited DC motor, has an armature body, with armature teeth joined in one piece together via a short-circuit ring and offset by equal circumferential angles, each with a tooth neck for receiving an armature winding and with a tooth head that protrudes past the tooth neck in the circumferential direction. For an axial lengthening of the armature body that is simple and economical to produce, one preferably stacked flux-conducting element each, whose profile corresponds to the tooth head profile, is placed on the axially pointing end faces of the tooth heads.

Abstract: An armature for a direct current motor, in particular for a permanent-magnet-excited DC motor, has an armature body, with armature teeth joined in one piece together via a short-circuit ring and offset by equal circumferential angles, each with a tooth neck for receiving an armature winding and with a tooth head that protrudes past the tooth neck in the circumferential direction. For an axial lengthening of the armature body that is simple and economical to produce, one preferably stacked flux-conducting element each, whose profile corresponds to the tooth head profile, is placed on the axially pointing end faces of the tooth heads.

Abstract: A permanent magnet-excited electric motor with a rotating rotor having permanent magnets disposed with alternating polarities in a ring around its circumference, which magnets cooperate with coils of a stator encompassing the rotor. The permanent magnets, as individual magnets next to one another that are distributed uniformly over the circumference of the rotor, rest on an annular support and are clamped in place at their axial ends by a respective annular frame made of magnetically inactive material.

Abstract: The invention proposes a transverse flux machine, in particular a unipolar transverse flux machine, with at least one stator module contained in a housing composed of two axially joined housing parts and having an annular coil disposed concentric to the housing axis as well as stator elements that embrace this annular coil from the outside and inside. For ease of assembly of the individual parts and for a precisely toleranced maintenance of a small air gap between the stator and the rotor, clamps that protrude axially from the respective housing parts oriented toward each other are provided for the stator elements and have positioning elements for securing them in the radial direction.

Abstract: In a unipolar transverse flux machine, to attain a modular structure favorable in terms of production, the stator and the rotor each have the same number of identical stator modules and rotor modules. Each stator module includes an annular coil, disposed coaxially to the rotor shaft, and U-shaped stator yokes fitting over the annular coil. To achieve a high static torque, each rotor module comprises two rotor rings with external toothing, and the rotor rings surround two radially oppositely magnetized permanent magnet rings, which in turn are seated on a common flux-conducting element, which is formed for instance by the rotor shaft produced from ferromagnetic material.

Abstract: In a unipolar transverse flux machine, in particular a motor, having a rotor, which is comprised of two coaxial, ferromagnetic, toothed rotor rings, and a permanent magnet ring, which is magnetized in an axially unipolar fashion and is clamped axially between these rotor rings, and having a stator, which is concentric to the rotor shaft and has U-shaped stator yokes that represent the magnet poles, yoke elements, and a stator winding, in order to achieve an extremely flat design and to assure a definite start in a particular direction, the stator winding is embodied with two coils, whose one coil side extends respectively over a group of stator yokes and yoke elements arranged in succession in the circumference direction, along the side of the yoke elements remote from the rotor shaft, between the yoke legs, where the group spanned by the coil side of the one coil is disposed spatially offset on the stator circumference and electrically offset by 90° in relation to the group spanned by the coil side of the ot

Abstract: A claw pole rotor with at least one motor module is indicated, the claw pole rotor having a stator (11) and an external rotor (12). Stator (11) and rotor (12) are configured conical in shape to achieve cost and installation space advantages with the preferred use of the claw pole motor in a fan for a blower for an air conditioning system.

Abstract: In a unipolar transverse flux machine, to attain a modular structure favorable in terms of production, the stator and the rotor each have the same number of identical stator modules and rotor modules. Each stator module includes an annular coil disposed coaxially to the rotor shaft, and U-shaped stator yokes fitting over the annular coil. To achieve a high static torque, each rotor module comprises two rotor rings with external toothing, and the rotor rings surround two radially oppositely magnetized permanent magnet rings, which in turn are seated on a common flux-conducting element, which is formed for instance by the rotor shaft produced from ferromagnetic material.

Abstract: In a unipolar transverse flux machine, for its modular construction, at least one rotor module has two coaxial, ferromagnetic rotor rings, toothed with a constant tooth pitch over its outer circumference, and a unipolarly magnetized permanent magnet ring fastened between them, and as at least one stator module, concentric with it, has a number of yokelike stator poles corresponding to twice the number of teeth of the rotor module, the stator poles being offset from one another by a pole pitch (?) and with their two yoke legs facing the two rotor rings, with an air gap between them, and an annular coil. At least one pair of stator pole groups having the same number of stator poles is formed, and these groups are displaced relative to one another by an electrical angle ?=180°/?, where ? is the ordinal number of the harmonic in the torque that is suppressed by this displacement.

Abstract: A permanent magnet-excited electric motor with a rotating rotor having permanent magnets disposed with alternating polarities in a ring around its circumference, which magnets cooperate with coils of a stator encompassing the rotor. The permanent magnets, as individual magnets next to one another that are distributed uniformly over the circumference of the rotor, rest on an annular support and are clamped in place at their axial ends by a respective annular frame made of magnetically inactive material.

Abstract: The invention relates to an electromechanical wheel brake device, with an electric motor that can press a frictional brake lining against a brake body (brake disk) by a reduction gear (planetary gear) and a rotation/translation conversion gear (ball screw). The invention proposes embodying the electric motor as a transverse flux motor with three phase windings; each phrase winding has a circular, annular excitation winding that is disposed inside U-shaped yokes, which are distributed over the circumference of the excitation winding. This embodiment of the electric motor permits a compact design of the electric motor in an annular, hollow shaft design so that the reduction gear and the rotation/translation conversion gear can be disposed at least partially inside the electric motor.

Abstract: In a unipolar transverse flux machine, for its modular construction, at least one rotor module (15) has two coaxial, ferromagnetic rotor rings (16, 17), toothed with a constant tooth pitch over its outer circumference, and a unipolarly magnetized permanent magnet ring (18) fastened between them, and as at least one stator module (14), concentric with it, has a number of yokelike stator poles (24, 25) corresponding to twice the number of teeth of the rotor module (15), the stator poles being offset from one another by a pole pitch (&tgr;) and with their two yoke legs facing the two rotor rings (16, 17), with an air gap between them, and an annular coil (23).