Schaeffler Technologies Ag & Co .Kg

Michael Kugler

Peter Sailer

Colin Foster

Faheem Ahmed

Wolfgang Christgen

Frank Himsel

Volker Schmidt

Jochen Tovar

Rainer Schwinn

Max Schafer

Jürgen Kretschmer

Philipp Streit

Max SCHÄFER

The invention relates to a locking device for a switchable valve drive component, including a first locking body and a second locking body which can be brought into engagement with one another or out of engagement in order to couple to one another or to uncouple two component parts arranged movably with respect to one another, wherein at least one of the two locking bodies has at least one curved surface. In order to increase the wear resistance of the locking device, provision is made for at least one of the two locking bodies to have a plurality of curved surfaces of which the respective curvature is described by radii of identical length having constructional center points spaced apart from one another.

Locking device for a switchable valve drive component

A clip for a switchable roller finger follower that includes a retainer for a hydraulic lash adjuster, and an anti-rotation feature that prevents rotation of a coupling pin is provided. The clip includes a first leg arranged adjacent to a dome-shaped recess on a bottom surface of an outer lever of the switchable roller finger follower that includes a retainer for the hydraulic lash adjuster, and a second leg of the clip includes an anti-rotation bar that extends laterally across a part of the coupling pin and prevents rotation of the coupling pin. A switchable finger follower with the clip is also provided.

Valve train retention clip with integrated locking pin anti-rotation feature

A double-flow hydraulic support element for a switchable finger lever of a valve train of an internal combustion engine is provided. A piston is arranged in an axial bore of the housing of the support element in an axially movable manner, and the piston includes a hollow cylindrical pressure part and a cup-shaped working part. A head of the pressure part is used as a support for the finger lever and projects beyond the housing edge, and an opening for the flow of a hydraulic medium is formed in the end face of the head. The housing has a first passage and a second passage axially spaced from the first passage for the hydraulic medium. The support element has a hydraulic play compensation device with a ball non-return valve for the finger lever. In order to achieve an optimal actuation of the coupling element, a sleeve which is closed on one side is inserted into the pressing part; the closed end of the sleeve reaches the region of an outer annular groove in a sealing manner below the dome-shaped head of the pressing part; a storage space for supplying the play compensation device with the hydraulic medium is formed radially within and axially outside of the sleeve, in the pressure part, and in the working part of the piston; the storage space is connected to the first passage in the housing via a passage opening in the working part; an actuation space formed between the sleeve and the pressure part of the piston for hydraulically supplying the coupling device is connected to the second passage in the housing via a radial passage opening in the pressure part; and the volume of the storage space is substantially greater than the volume of the actuation space.

Support element

Growing community of inventors

Vestenbergsgreuth, Germany

Michael Kugler