Patent ID: 9121354
Filing Date: 2015-09-01
Classification: F01L,F02D,Y10T

Abstract:
1. A reciprocating-piston internal combustion engine comprises a crank mechanism, at least one cylinder head, intake and exhaust ducts for the at least one cylinder head which are controlled by in each case at least one gas exchange valve designed respectively as an intake valve and an exhaust valve, said gas exchange valves are actuatable by cams on at least one camshaft and by transmission elements driven by said cams, wherein the cams comprise sliding cams with at least two cams per sliding cam unit, said sliding cams are arranged via internal splines on an externally splined base shaft that prevents relative rotation but allows axial movement, at least one device which is fixed with respect to the internal combustion engine for moving the sliding cam unit into different axial positions via sliding grooves on a circumference of the sliding cam unit which interact with an actuator pin, and bearings for fixing the base shaft radially and axially on a component of the internal combustion engine, and rings acting as supporting elements for the bearings are secured on the external splines of the base shaft.