Patent ID: 7424874
Filing Date: 2008-09-16
Classification: F01L,F02D,Y02T

Abstract:
1. An engine comprising a plurality of cylinders, intake valves provided to said cylinders respectively and a camshaft operating said intake valves in a predetermined order, said camshaft starting, during closing operation of a first intake valve of the plurality of intake valves, opening operation of a second intake valve, rotational speed of said camshaft during the closing operation of said first intake valve being slower than rotational speed of said camshaft during opening operation of said second intake valve, and a cam operating said first intake valve being disposed at a position displaced, in advance direction with respect to a cam operating said second intake valve, by a distance larger than a distance corresponding to an interval between a timing at which a piston of a cylinder provided with said first intake valve is at top dead center position and a timing at which a piston of a cylinder provided with said second intake valve is at a top dead center position.