Schaeffler Technologies Ag & Co .kg

Resat Aras

Rainer Ottersbach

Juergen Weber

Richard Baier

Harald Hofmann

The invention relates to a gear device for a motor vehicle, as is used, for example, for adjusting a camshaft in a combustion engine in order to influence the phase angle between crankshaft and camshaft. Such gear devices have to be constructed compactly and also have to have high resistance to wear, in particular upon reaching end stops during adjustment of the phase angle. For this purpose, the gear device has hydraulic end stop damping by the drive unit and the output unit having communicating cavities.

Gear device, camshaft adjuster having the gear device, and internal combustion engine

A harmonic drive, more particularly in an electromechanical camshaft phaser, comprises a drive element (), a flexible transmission element () connected to the drive element () and having external teeth (), and an output element () that is designed as a ring gear and has internal teeth () that partially mesh with the external teeth (). The flexible transmission element () is pot-shaped, and is coupled in a torque-transmitting manner to the drive element () radially inside the outer teeth ().

Harmonic drive and method for producing harmonic drive

A variable-speed gear arrangement for a vehicle includes a harmonic drive device, a driven wheel and an optional stop disk. The stop disk can be arranged between the driven wheel and a shaft, with a fastener for connecting the shaft to the stop disk and the driven wheel. The fastener presses the shaft, the stop disk and the driven wheel together in an axial direction. The driven wheel and/or the shaft and/or the stop disk includes a deformation section, and the deformation section includes a contact surface and a deformation surface. In a first state of assembly, the deformation section brings a member of the clamping connection into contact with the contact surface, simultaneously forming a free deformation region. In a second state of assembly, the contact surface and the deformation surface are applied to the member of the clamping connection in a flat manner.

Variable-speed gear arrangement for a vehicle, vehicle comprising the variable-speed gear arrangement, and method for assembling the variable-speed gear arrangement

An electrically-actuatable camshaft adjuster includes an adjustment gear which has a drive wheel with an external toothing. The adjustment gear also has an additional ring-shaped component which is solidly screwed to the drive wheel. In particular, the drive wheel has internal threading into which outer threading of the ring-shaped component is screwed.

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Fürth, Germany

Resat Aras