Patent ID: 6260533
Filing Date: 2001-07-17
Classification: F01L,F01M,F02B

Abstract:
An oil passageway structure for an internal combustion engine having a crankshaft rotatably supported on a cylinder block of the engine, a crankshaft timing sprocket positioned on the crankshaft, a camshaft disposed and rotatably carried on a cylinder head for opening and closing intake and exhaust valves, the cylinder head being disposed on the cylinder block, a camshaft sprocket positioned on the camshaft, a timing chain, disposed around the crankshaft timing sprocket and the camshaft sprocket, an enclosing member extending over the cylinder block and the cylinder head so as to cover the timing chain to form a chain chamber, an oil pump provided on a side of the cylinder block, an oil control valve disposed on a side of the cylinder head for actuating hydraulic equipment, whereby oil from the oil pump is introduced into the oil control valve, the oil passageway structure comprising: an oil pipe disposed between a passage located at a downstream side of the,oil pump and the oil control valve, the oil pipe being provided inside the chain chamber.