SHAPE OF COMBUSTION CHAMBER FOR FOUR-CYCLE ENGINE AND SIX-CYCLE ENGINE AND SHAPE OF PISTON FOR THE ENGINES

摘要

PURPOSE:To provide the shape of a combustion chamber and the shape of a piston when a rotary valve is used in a four-cycle engine and a six-cycle engine and to provide the shape of a combustion chamber and the shape of a piston when a method corresponding to a mirror cycle is provided by using a piston valve and a rotary valve in a four-cycle gasoline engine and a six-cycle gasoline engine. CONSTITUTION:A dent starting from the ignition point of a plug 5 or a fuel injector is formed in a piston 6 in a spherical shape or thin section shape or in a shape in combination of the shapes.