Patent ID: 7934479
Filing Date: 2011-05-03
Classification: F01L

Abstract:
1. Camshaft adjuster for an internal combustion engine comprising a) a drive element and a driven element, which can be moved relative to each other with an adjustment movement of the camshaft adjuster, b) a locking device with a first locking element and a second locking element, each of which can be moved from an unlocked position into a locked position, in which the locking elements at least limit a relative movement between the drive element and the driven element, c) the first locking element is in a region of an advanced end position and the second locking element is in a region of a retarded end position and both of the locking elements can be moved from the unlocked position into the locked position, and d) a spring compensation element is connected between the drive element and the driven element, wherein the spring compensation element causes an adjustment in a direction of the advanced end position, in which the first locking element then can be moved from the unlocked position into the locked position, for an operating state, in which the camshaft adjuster is located between the advanced end position and the central position.