The role of the intake and exhaust valve is specifically responsible for the engine to enter the air and exhaust after combustion. From the engine structure, is divided into the intake valve and exhaust valve . The function of the intake valve is to draw air into the engine and burn it with fuel; the function of the exhaust valve is to exhaust and dissipate heat.
The valve is composed of a valve head and a stem. Valve head temperature is very high (intake valve 570 ~ 670K, exhaust valve 1050 ~ 1200K) , but also bear the gas pressure, valve spring force and transmission components Inertia Force, valve has good strength, stiffness, heat resistance and wear resistance. Alloy steel is generally used for the intake valve and heat-resistant alloy for the exhaust valve.
||intake valve WP10
||exhaust valve WP10
||intake valve WP12
||exhaust valve WP12