Zf Friedrichshafen Ag

Stefan Csajagi

Gerhard Gumpoltsberger

Wolfgang Rieger

Matthias List

Michael Ebenhoch

Hans-Joachim Martin

Linus Eschenbeck

Michael Drabek

Markus Hoher

Christian Michel

Uwe Firzlaff

Bernd Austermann

Florian Pöhnlein

Gert Hanker

Berthold Schraff

Rudolf Kauffeldt

Gerhard Spindler

A vane cell pump for a transmission of a motor vehicle includes a housing. A rotor defines a plurality of slots. The plurality of slots runs radially. A plurality of vanes is arranged in the plurality of slots of the rotor. An end plate is positioned in a bottom area of the housing. The end plate is configured as a fluid guide with a suction channel and a pressure channel. The end plate forms a bottom wall of the housing.

Vane pump

A transmission parking lock has an actuating rod that is essentially translationally displaceable, which bears an actuating element, and with a locking lever that is essentially rotationally displaceable, bears a locking element For inserting the transmission parking lock through the displacement of the actuating rod, the locking lever is pivotable from a resting position of the same into a locked position in such a manner that the locking element engages in a recess of a gear wheel () allocated to a gear shaft, and with a device that withdraws the actuating element of the actuating rod in the resting position of the same from the locking lever.

Transmission parking lock

A shifting device () for shifting a motor vehicle transmission with a shift selector shaft on which a plurality of shift elements () such as shift forks or shift rockers () are arranged and can be displaced to carry out a shifting operation. The shifting device () includes one hydraulic shift cylinder (), that can be actuated from both sides, with a piston () that can be displaced within a cylinder housing () and which is actively connected with a shift element () to be actuated. To simplify a shifting device () of this type, the piston () has a piston rod () that follows the movement of the piston () and can be connected directly to the shift element () in a detachable manner.

Shifting device for shifting a motor vehicle gear box

A parking lock of an automatic transmission avoiding an undesirable engagement of a lock member () in a parking lock gear, during occurring extreme accelerations in normal driving of a motor vehicle. An arrester () is provided which, in the driving gear stages of the transmission, retains the lock member () with an arresting shape fit.

Parking lock of an automatic transmission

Growing community of inventors

Eriskirch, Germany

Stefan Csajagi