The pistons with high structural strength and rigidity are made of high-silicon aluminum alloy with low density and good heat-conducting property. It has the advantages of bearing high temperature and high pressure, being equipped with high abrasion resistance and corrosion resistance, and being provided with small expansion coefficient and light weight under high temperature. The first ring is made of steel with the inner edges and the outer edges being chamfered to avoid cylinder wall scratches and reduce the friction area between the piston ring and the cylinder wall.

The air inlet with the special angle matching with the combustion chamber in customized design enable the mixed gas to be inhaled in the shape of vortex, thus the extreme thin mixed gas can also be sufficiently burnt after fully mixing to immediately release great power and greatly improve the fuel efficiency.

The air inlet with the special angle matching with the combustion chamber in customized design enable the mixed gas to be inhaled in the shape of vortex, thus the extreme thin mixed gas can also be sufficiently burnt after fully mixing to immediately release great power and greatly improve the fuel efficiency.