Zf Friedrichshafen Ag

Zf Sachs Ag

Klaus Reuter

Klaus Krappmann

Ralf Koberstein

Matthias Reisch

Juergen Wafzig

Daniel Schmitt

Andreas Ratte

Matthias Cudok

Christian Brückner

Peter Fenn

Sebastian Baumgart

Tomas Vnuk

Ralf Steinfeldt

André Gemeinhardt

Ralf Obergfell

A stator of an electric machine includes a stator winding having a plurality of coils, the coils are connected to one another by connection conductors. A temperature sensor is arranged at a connection conductor and is in thermal contact with the connection conductor for detecting a temperature. Two parallel current paths are formed at the connection conductor and the temperature sensor is arranged at one of the current paths.

Stator of an electrical machine, comprising an arrangement for temperature detection, and electrical machine comprising such a stator

A torque transmission arrangement, particularly for an arrangement with an electric machine in a drive module of a hybrid vehicle or electric vehicle, for transmitting a torque from an output shaft, particularly a motor output shaft, to a drive shaft, particularly a transmission input shaft. The drive shaft further has at least one fluid guide channel in which a fluid can be guided in direction of the output shaft. A fluid-carrying element which guides fluid out of the fluid guide channel of the drive shaft into a radially outer region of the output shaft and is provided at the output shaft.

Torque transmission arrangement, and drive module comprising same

An actuating device for applying actuating forces in a friction clutch device for engaging and disengaging a friction clutch assembly of the friction clutch device. The torque transmission device comprises the actuating device for transmission of torque between a drive unit and a transmission which also includes the friction clutch device. A method for installing a torque transmission device of this type. Various aspects relate to setting of a pre-load on a bearing of the actuating device, setting an over-dead-point configuration for a compensation spring associated with at least one rotary member of the actuating device, setting a rotation movement range for the rotary member and/or an axial movement range for an actuating element which can be displaced axially by rotation movement imparted to the rotary member, and producing either a normally engaged or disengaged characteristic in a normally-engaged or normally-disengaged friction clutch assembly with the compensation spring.

Actuating device for a friction clutch device and torque transmission device formed by the same

A clutch-release mechanism for actuating the friction clutch of a motor vehicle, installed concentrically around a guide sleeve, includes a release bearing with an inner ring and an outer ring as well as a sliding sleeve. The inner ring is in working contact with a release spring of the friction clutch and the outer ring is in working contact with the sliding sleeve by way of a sliding surface, and the release mechanism has both a first device for compensating for a tilt of the center axis of the friction clutch with respect to the center axis of the guide sleeve and/or for a wobbling eccentricity of the release spring, and a second device for compensating for an offset between the above-mentioned center axes. The first device consists of a modified raceway for the balls, where the race has both a first race radius and a second race radius to form a surface in the form of a spherical segment, where differences between the angles of the release spring and of the release bearing are compensated. Because the raceway can be produced in any case with high precision in the outer ring and because the rolling contact of the parts is lubricated with grease and protected from the outside environment by seals, no additional components are required for the release mechanism, and there are no additional friction points to be lubricated and sealed.

Clutch release mechanism with a device for compensating for lack of precision in a friction clutch of a motor vehicle

A master cylinder for a hydraulically actuated clutch or brake system in a motor vehicle includes a piston in a housing, the piston being axially movable in the housing by a piston rod. The piston rod has a ball-shaped head, at least certain areas of which are surrounded by first and second shell-like support elements which form a ball socket, so that the piston and the piston rod are connected to each other essentially without play, but are still free to swivel with respect to each other. The support elements are arranged at least in part inside a piston shaft sleeve, against which these elements may be supported when forces introduced via the piston rod act upon them. The first support element has a hemispherical shell to enclose half of the ball-shaped head. The other side of the ball-shaped head, except for a certain clearance required for swiveling, is surrounded by a support element with a spherical-segment-shaped ring, through the opening in which the piston rod passes.

Master cylinder

A pressure cylinder for a hydraulic actuation device in motor vehicles includes a housing () with an internal cylinder (). A piston () is displaceable in the internal cylinder for forming a pressure space () for a hydraulic fluid. The piston includes a hemispherical socket () in an indentation (). A spring () is arranged in the pressure space (), and a tappet () is connected by a transmission part with a hemispherical cap (). The tappet () is in a frictional and swivelable engagement in the socket () in an indentation () by the force of the spring (). The piston is a deep-drawn, cup-shaped part and includes a filling piece () in the interior of the piston (). An annular space () is disposed at a piston surface () facing toward the pressure space (). The annular space () is for receiving the spring () in a compressed state when the piston () is in a top dead center position.

Growing community of inventors

Oberthulba, Germany

Klaus Reuter