Patent ID: 6899070
Filing Date: 2005-05-31
Classification: F01L,F01M,F02B,Y10T

Abstract:
1. An internal combustion engine having a plurality of cylinders containing pistons connected with a crankshaft for transmitting power, the cylinders having closed ends, intake and exhaust ports communicating with the cylinders, valves operable to open and close the ports to air and exhaust flow to and from the cylinders, a pressure oil lubrication system including a first oil sump and a first oil pump operative to lubricate at least the cylinders, pistons and crankshaft of the engine, and the improvement comprising: a valve actuating system including hydraulic actuators operable to actuate the valves; and a pressure oil hydraulic system separate from the lubrication system and including a separate oil sump and a separate oil pump operative to selectively supply pressure hydraulic oil to the hydraulic actuators to actuate the valves in a predetermined manner.