Patent ID: 7980217
Filing Date: 2011-07-19
Classification: F01L,Y10T

Abstract:
1. A valve train of an internal combustion engine comprising at least one camshaft on which at least one rotatable cam is arranged fixed in an axial direction, a rotationally locked connection of the at least one cam with the camshaft can be selectively established and released by an associated coupling locking device, the locking device is held within the cam and has a spring-loaded, annular locking collar movable in the axial direction on the camshaft and, as a counter part to the locking collar, locking shoes coupled with the cam, wherein, in a locking position, the locking collar is pressed against the locking shoes by contacting, ramp-shaped boundary surfaces formed on the locking collar and the locking shoes, so that radial projections arranged in the locking shoes engage in adjacent pocket-shaped receptacles of the camshaft by a radial force and, in an unlocked position, the locking collar is released from the locking shoes by a force acting against the radial force.