Zf Friedrichshafen Ag

Dr. Ing. H.c. F. Porsche Aktiengesellschaft

Zf Transmission Technologies, L.l.c.

Andreas Salm

Ralf Vorndran

Manfred Fischer

Stephan Brussa

Rudolf Kauffeldt

Lothar Beigang

Thomas Fichtinger

Dietmar Illerhaus

Thomas Lindner

Dieter Blaser

A support for a pump drive wheel () on the clutch side of a pump with an off-axis pump arrangement in an automatic transmission, particularly in a dual clutch transmission, in which the pump drive wheel () is supported on the centering plate () of the pump ().

Support of a pump drive wheel on the side of the starting component with an off-axis pump arrangement in an automatic transmission

A device, in a continuously variable belt transmission system, for guiding a conical pulley () of a variator on a variator shaft (). The moveable conical pulley () is fitted onto two bearing sections () of the variation shaft (). At least one cylindrical pin (), which is fitted into an axial guide grove () in the variator shaft () and an axial guide groove () of the movable conical pulley (), is provided to transfer torque between the movable conical pulley () and the variator shaft ().

Device for guiding a moveable conical pulley disc of a CVT variator

A variator for ratio adjustment of a continuously variable chain drive transmission having one variator shaft () and one variator pulley () supported upon the variator shaft () and axially movable by pressurizing a variator pressure chamber (). The variator shaft () has on one end an axial hole () through which the variator pressure chamber () and a second pressure chamber () can be loaded with pressure independent of each other. The pressure is supplied to the variator pressure chamber () via a first section () of the axial hole () and the pressure is supplied to the second pressure chamber () via a non-rotating pipe () and a second section () of the axial hole (), the pipe () is situated within the first hole section (). It is proposed that the pipe () has two axially adjacently disposed sealing rings () for reciprocal dynamic sealing of the pressure supplies to the variator pressure chamber () and to the second pressure chamber () and that the variator shaft () has a vent hole () discharging, on one side between the two sealing rings () and on the other side in a transmission inner space ().

Variator

Growing community of inventors

Bodolz, Germany

Andreas Salm