Patent ID: 6247436
Filing Date: 2001-06-19
Classification: F01L,F01M,F02F

Abstract:
An internal combustion engine having a crankshaft (14) and a camshaft the ends of which project from a front end of the engine, a hydraulically operable variable valve actuation mechanism at the front end of the engine for driving the camshaft, an engine driven oil pump (16) located at the front end of the engine and drive means located at the front end of the engine for transmitting torque from the crankshaft to the variable valve actuation mechanism, characterised by a front cover (10) overlying the variable valve actuation mechanism, the end of the crankshaft projecting from the front end of the engine and the torque transmitting drive means, and by oil supply passages (40, 42) formed in the front cover (10) and directly connected to the engine driven oil pump (16) and to the variable valve actuation mechanism, to enable the resistance to oil flow of the hydraulic circuit connecting the engine driven oil pump (16) to the variable valve actuation mechanism to be reduced.