Schaeffler Technologies Ag & Co .Kg

Bodo Roerig

Joachim Seitz

Robert Heinemann

Stefan Gemein

Nicola Morelli

Matthew Evans

Tracy Novinski

The invention proposes a switchable component () for a valve train of an internal combustion engine, said component () comprising a housing () in whose bore () an axially displaceable inner element () comprising coupling elements () is received, said coupling elements (), for effecting coupling, being able to be brought partially into engagement with an entraining surface () of the housing (), the inner element () being biased in outward direction from the housing () by a lost motion spring (), and an (outer) anti-rotation device () extending from an outer casing () of the housing () projects beyond a surrounding structure (), the outer anti-rotation device () is configured as a C-shaped, thin-walled ring () comprising a slit (), said ring () extends after the manner of a clip in an annular groove () in the outer casing () of the housing () parallel to a transversal plane of the component () and, for effecting outer anti-rotation, said ring () projects with a sickle-like portion () of its outer peripheral surface () beyond the outer casing () of the housing ().

Switchable component for a valve train of an internal combustion engine

The invention proposes a switchable support element () for a valve train of an internal combustion engine, said support element comprising a housing () in whose bore () an axially displaceable inner element () is received, a coupling means () extending in the inner element () can be brought partially into engagement with an entraining surface () of the housing () for achieving coupling, and said support element () further comprising at least one vertical stop means () that overlaps an annular groove () between the inner element () and the housing () for defining a coupling position of said coupling means () with coupling lash relative to said entraining surface (), the vertical stop means () is constituted by at least one thin-walled ring comprising a slot (), the ring is placed or slipped, slot () ahead, onto an outer peripheral surface () of the housing () to extend parallel to a transverse plane of the support element (), the housing () comprises at least one aperture () through which an inner peripheral segment () of the ring extends, a longitudinal groove () extends in the outer peripheral surface () of the inner element (), and an underside () of the inner peripheral segment () comes to abut against a lower end () of said groove for defining the coupling position.

Switchable support element for a valve train of an internal combustion engine

A switchable drag lever () of a valve timing mechanism of an internal combustion engine having an outer lever (), and inner lever () extending in the cut-out () of the said outer lever () between its side walls (), the drag lever () having a rest () for a gas exchange valve on an underside () at one end () and a pivoting bearing () for supporting element at the other end () with the levers () extending at the end () on a common pin ().

Switchable drag lever of a valve timing mechanism of an internal combustion engine

A switchable drag lever () of a valve timing mechanism of an internal combustion engine is proposed, having an outer lever () and an inner lever () which is arranged between the said outer lever (). The drag lever () has a rest () for a gas exchange valve on an underside () at one end (), and a pivoting bearing () for a supporting element on an underside () at the other end (). The levers () extend at one end () on a common pin (). Receptacles () for coupling means are provided which extend longitudinally at the end () facing away from the pin () and are aligned with respect to one another in the cam base circle. The side walls () of the outer lever () have contact faces () for lifting cams on their upper sides (). A segment-like collar () protrudes inwards from each upper side (), which segment-like collar () forms a structural unit with the respective contact face (), the corresponding underside () of the collar () bearing against a complementary stop face () of an upper side () of the adjacent arm () of the inner lever () in the coupling case. Alignment of the receptacles () is therefore provided in a simple way for the coupling case.

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Weisendorf, Germany

Bodo Roerig