Schaeffler Technologies Ag & Co .kg

Michael Schober

Wolfgang Christgen

Volker Schmidt

A method for mounting a valve train () of an internal combustion engine, having, parallel to a row of cam followers (), a camshaft () which has a cam () per cam follower (), which cam () acts on the roller () of said cam follower (), which camshaft () is supported with respect to the cylinder head () via an axial bearing (), wherein a) the cam followers () are provided presorted into two main groups (A, B); b) the two mounts () of each cam follower () of the first main group (A) run with offset in relation to the longitudinal extent of the cam follower () in the side surfaces () with respect to one another in such a way that an axial line of the pin () differs in the clockwise direction from perpendicular; c) the offset of the second main group (B) differs in the counterclockwise direction from perpendicular, and d) a partial quantity of the first and second main group (A, B) are selected and mounted for each row of cam followers () in order to minimize/compensate for an axial thrust of the camshaft ().

Method for mounting a valve train of an internal combustion engine

A variable lift valve train for an internal combustion engine, including a pivoted lever with a transmission surface on one end, a counter running surface in a central region and, on a further end, a support element and a contact element, the transmission surface has a zero lift path and, adjoining the zero lift path in lever pivoting direction, a lift path, the transmission surface being in contact with a valve opener, the counter running surface being loaded by at least one lift cam, the support element being guided on a lever guide section, the contact element, for adjusting a valve lift being loaded by an adjusting device in direction of the lever guide section, and the valve train including directly in a region of the pivoted lever, an effective and optionally additionally actuable element for creating an additional valve lift during a base circle phase of the lift cam.

Growing community of inventors

Vestenbergsgreuth, Germany

Michael Schober