Schaeffler Technologies Ag & Co .Kg

Rainer Pfeufer

Oliver Schnell

Peter Sailer

Debora Manther

Matthias Kapp

Christian Geers

Dieter Baumgarten

Armin Liebel

Ulrich Elgas

Stefan Weidlich

A switchable support element () for a valve train of an internal combustion engine is disclosed, including a housing (), in the bore of which () an axially displaceable inner element () is located, wherein two coupling slides () run in a radial bore () of the inner element () and can be brought into engagement with a driver surface of the housing () in an axially extended position, wherein the extended position is limited by a height stop (), which is formed of a circlip assembly, which runs peripherally on an annular shoulder () of the inner element () and which, in the event of contact, lies radially externally above the upper annular end () thereof in abutment against a lower annular edge () of an annular groove () of the housing () near the upper edge thereof (), and wherein an outer casing () of the housing is enclosed by a rotationally fixed ring as an outer anti-twist mechanism () with an offset bore ().

Switchable support element

A switching roller finger follower, including: a housing with a first wall with a first opening, a second wall with a second opening, and an interior space at least partially formed by the walls; first and second outer arms; and a locking pin disposed in the openings and including a longitudinal axis, a body, and first and second protrusions extending radially outward from the body, formed of a same piece of material as the body, and at least one of which is located within the space. A respective portion of at least one of the first or second protrusions is aligned with the first or second wall in a direction parallel to the first longitudinal axis. The locking pin is displaceable such that: in a locked mode, the locking pin blocks pivoting of the arms; and in an unlocked mode, the locking pin is free of contact with the arms.

Switching roller finger follower with locking mechanism

Growing community of inventors

Hagenbuchach, Germany

Rainer Pfeufer