Robert Boschgmbh

Guenter Kastinger

Anton Paweletz

Jan Dietrich

Detlef Lauk

Alexander Dudek

Norbert Wegner

Richard Hurst

Mike Obert

Gerald Roos

Mario Huesges

Harold Bitzer

Achim Kraus

Wilhelm Braun

Georg Blosch

Hartmut Krueger

Frank Schumann

Paul Geubel

Juergen Hilzinger

Hans-Peter Dommsch

Thomas Holzer

Gerald Zierer

Andreas Saum

Gabriele Pfeiffer

Werner Grosch

Markus Rauschning

Jochen Oser

Alexander Kuderer

Ottmar Seiler

Markus Petry

Thomas Singler

Klaus Riedinger

Wolfgang Schneider

Andreas Bechle

Simone Flink

Werner Maurer

Jens Meyer Zur Capellen

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

Bushing for a drive unit and drive unit

The invention relates to a housing () for a drive device, especially for an adjusting device and/or a windshield wiper drive in a motor vehicle, comprising a pressure compensating membrane () obturating a housing opening (). The invention is characterized in that the pressure compensating membrane () has a peripheral sealing surface () 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 ().

Housing for a drive device, drive device and method for testing the tightness of a pressure compensating membrane

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.

Armature for a direct current motor

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.

Electrical machines, especially engines excited by permanent magnets

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.

Transverse flux machine, in particular a unipolar transverse flux machine

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.

Unipolar transverse magnetic flux machine

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&#xb0; in relation to the group spanned by the coil side of the other coil.

Unipolar transverse flux machine

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 (&#x3c4;) 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 &#x3b1;=180&#xb0;/&#x3bd;, where &#x3bd; is the ordinal number of the harmonic in the torque that is suppressed by this displacement.

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.

Electromechanical wheel brake device

In a unipolar transverse flux machine, to achieve a modular construction, which is favorable from a production standpoint, the stator ( ) and the rotor ( ) have an equal number of identical stator modules ( ) and rotor modules ( ); the rotor modules ( ) are firmly seated, in alignment with one another, on the rotor shaft ( ), and the stator modules ( ) are rotated by a rotational angle from one another in the housing ( ). When there are two stator modules ( ), the rotational angle is 90&deg; electrically, and when there are m stator modules ( ), the rotational angle is 360&deg;/m electrically, where m is an integer and is greater than 2. Each stator module ( ) has an annular coil ( ), disposed coaxially to the rotor axis ( ), and U-shaped stator yokes ( ) that fit over the annular coil, along with short-circuit elements ( ) disposed between the stator yokes. Each rotor module ( ) comprises two rotor rings ( ) with teeth on the outside, and between them a permanent-magnet ring ( ), magnetized unipolarly in the direction of the rotor axis ( ).

Growing community of inventors

Gaggenau-Sulzbach, Germany

Guenter Kastinger