SIZE OF VALVE OPENED AT BOTTOM DEAD CENTER AND CLOSED BEFORE TOP DEAD CENTER IN COMPRESSING PROCESS VERSUS VALVE OPENED AT TOP DEAD CENTER AND CLOSED AT BOTTOM DEAD CENTER IN INTAKE PROCESS, AND OPENING AND CLOSING AT HIGH AND LOW EXPLOSION ROTATING SPEED OF ENGINE

摘要

PROBLEM TO BE SOLVED: To provide a method of changing the amount of actual air-fuel mixture in a cylinder in a compressing process on the basis of the explosion rotating speed of an engine, for a four-cycle gasoline engine and a six-cycle gasoline engine, using a valve a and a valve b. (relating to the valve a and the valve b, refer to the description on codes in the specification).;SOLUTION: A dimension of the valve b is reduced compared to that of the valve a. The valve b is opened and closed on the basis of the explosion rotating speed of the engine. A passage (pipe) from the valve b to an empty space (place where the air-fuel mixture is temporarily retained) is opened and closed on the basis of the explosion rotating speed of the engine.;COPYRIGHT: (C)2003,JPO