PISTON FOR GAS VEHICLE

摘要

PURPOSE: A piston for a gas vehicle is provided to optimize the ignition timing of engine and achieve improved efficiency of engine by allowing for a quick combustion and reducing a knocking phenomenon. CONSTITUTION: A piston(20) has a top surface(21) which is cut into a square so as to ensure an intensity of turbulence and flame surface and allow for a lean combustion. The top surface of the piston which is cut into a square is cut into an inclined surface(22) having a predetermined angle so as to reduce the surface area to volume ratio of the combustion chamber and improve efficiency of engine.