Patent ID: 8490587
Filing Date: 2013-07-23
Classification: F01L

Abstract:
1. A cam drive, comprising: a camshaft having cams arranged thereon, a plunger-shaped abutment including an axis; at least one spring-loaded gas exchange valve of an associated cylinder; at least one rocker arm which has a cam follower, a first arm, and a second arm, and where the rocker arm is actively connected by means of the first arm to the plunger-shaped abutment and by means of the second arm to the at least one gas exchange valve; and a device varying lift of the at least one gas exchange valve, the device including an actuating element; wherein the device is formed as a clutch device which acts between the plunger-shaped abutment and the rocker arm and the actuating element is supported so as to be rotatable about the axis of the plunger-shaped abutment between at least a first coupled position and a second decoupled position; wherein a valve lift of the at least one gas exchange valve in the first coupled position of the actuating element is varied in comparison with the second decoupled position.