Patent ID: 8596238
Filing Date: 2013-12-03
Classification: F01L,Y10T

Abstract:
1. A valve train for actuating a plurality of gas exchange valves of an internal combustion engine, wherein a crankshaft of the internal combustion engine drives a camshaft, the valve train comprising: a plurality of individual cam sleeves axially displaceable relative to one another and disposed so as to form the camshaft, each of the plurality of individual cam sleeves including a plurality of different cam profiles each having a same base circle portion, the plurality of different cam profiles being configured to engage, by switching, one of the plurality of gas exchange valves; a switching shaft disposed inside the plurality of cam sleeves and configured to rotate together with the plurality of cam sleeves; an encircling switching contour disposed inside each of the plurality of cam sleeves; a switching pin operatively connecting one of the plurality of cam sleeves to the switching shaft, the switching pin configured to slide in the encircling switching contour; and an actuator operatively connected to the switching shaft so as to rotate the switching shaft relative to the plurality of cam sleeves.