Patent ID: 8567361

Claim:
A valve drive for an internal combustion engine having a plurality of cylinders comprising: at least one camshaft to activate gas exchange valves of the internal combustion engine, the at least one camshaft having at least one sliding cam which is configured to be displaced axially on the camshaft, wherein the at least one sliding cam has a sliding block section with a plurality of grooves which are formed on an outer lateral face of the sliding block section and are positioned one behind the other on a circumference of the sliding block section, the plurality of grooves including a first groove for axial displacement of the sliding cam in a first direction and a second groove for axial displacement of the sliding cam in an opposing second direction, an actuator with a plurality of pins which are configured to be activated in order to bring about axial displacement of the respective sliding cam, the plurality of pins including a first pin for axial displacement of the sliding cam in the first and second directions about a first axial segment and a second pin for axial displacement of the sliding cam in the first and second directions about a second axial segment, and wherein, for an axial displacement of the sliding cam, both the first pin and the second pin are released from the actuator and moved axially radially inward in a radial direction of the sliding cam in a way that one of the pins projects into a groove of the sliding block section, while the other pin bears on an radially outer lateral face of the sliding block section, wherein the sliding block section includes sections having a high electrical conductivity and other sections having a low electrical conductivity.