Patent ID: 8794205
Filing Date: 2014-08-05
Classification: F01L

Abstract:
1. A switchable lever for a valve train of an internal combustion engine, said switchable lever comprising side walls connected by a crossbar and on one end, a bearing for enabling a pivotal support of said lever and, on another end, on an underside of said crossbar, a support for at least one gas exchange valve, said crossbar comprising between said one end and said another end, a recess with two cam rollers extending therein while being seated on an axle which is mounted in bores in said side walls and is displaceable in an axial direction, a hollow axle arranged on said axle extending out of the bore of the first side wall axially inwards, a first one of the cam rollers being guided, axially fixed on said hollow axle in front of an inner side of the first side wall, said first cam roller serving for a permanent contact of a first low lift or zero lift cam of a cam assembly, a second one of the cam rollers being axially fixed on said axle and being displaceable by said axle into two positions, a first one of said positions serving to switch to a high valve lift during which the second cam roller is displaceable by said axle into a central position in the recess, so that a contact of a high lift cam of the cam assembly is enabled, a second one of said positions serving to switch off the high valve lift during which the second cam roller is displaced by the axle into a position in front of the second side wall, so that a contact of a further low lift or zero lift cam of the cam assembly is enabled, and said cam rollers are situated opposite each other approximately equally spaced from a central longitudinal axis of the lever.