Magna Powertrain & Ag & Co. Kg

Magna Powertrain Gmbh & Co. Kg

Manfred Rahm

Peter Pisek

Thomas Linortner

Gerhard Hofer

Jürgen Schranz

Hansdieter Wiedner

Jan Wiechmann

Klaus Nenninger

Walter Sackl

Werner Brendl

Rene Kraxner

Bernd Jeitler

A transmission arrangement () for the controllable distribution of drive torque from an input element () to at least one output element (), comprising a first transmission part region (), namely a planetary gear mechanism, and an additional drive unit (), the first transmission part region () being drive-connected directly or indirectly to the input element () and to the additional drive unit (), and the first transmission part region () being drive-connected directly or indirectly to the output element ().

Gear assembly

Disclosed is a differential transmission unit featuring active controlling of the moment distribution. Said differential transmission unit comprises a differential transmission () with two output shafts (), the cage () of said differential transmission () forming the input member, and one respective controlled frictional clutch () that is associated with an output shaft. The primary part () of the clutch is drivingly connected to the input member () while the secondary part () of the clutch is drivingly connected to the associated output shaft (), at least one of the driving connections being provided with an increased or reduced transmission ratio. In order to create a lightweight and small unit, the clutch () surrounds the associated output shaft (), the central axis () thereof is offset relative to the central axis () of the associated output shaft (), and the secondary part () of the clutch, which surrounds the associated output shaft (), is provided with an internally toothed gear rim () which meshes with an externally toothed wheel () on the associated output shaft.

Differential transmission unit featuring active controlling of the moment distribution

A multi-disk clutch having a plurality of interengaging disks movable along a longitudinal clutch axis and a resetting device for the mutual release of adjacent disks along a release distance, with the release distance being bounded by an abutment device. The abutment device includes at least one contact section of a clutch part movable along the longitudinal clutch axis and at least one contact section of an axially fixed clutch part, with the moving clutch part and the axially fixed clutch part having different thermal coefficients of expansion and with the contact sections at both sides cooperating such that the bounding of the release distance varies in dependence on the temperature, with at least one of the contact sections having a sloping surface.

Multi-disk clutch

A method of connecting a rotationally symmetrical part () having precision-machined functional surfaces () to a hub part () by welding is to deliver a distortion-free end product. To this end, the rotationally symmetrical part () and the hub part (), in their longitudinal sections, are dimensioned in such a way that, when the rotationally symmetrical part () is shrunk onto or pressed onto the hub part (), stresses are produced in the former and said stresses produce deformations which are opposed to the stresses to be expected during the subsequent welding and to deformations caused by said stresses. This is achieved by one of the contact surfaces () being conical or by shaping the rotationally symmetrical part ().

Method for welding a rotationally symmetrical part of a hub part

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Eisbach-Rein, Austria

Manfred Rahm