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The composition and function of the valve group

  • Time of issue:2021-08-13

The composition and function of the valve group

(Summary description)The structure of the valve group is mainly composed of valves, valve springs, valve lock clips, etc. Under normal circumstances, the diameter of the intake port is larger than the exhaust port, which is mainly to increase the intake volume to improve the combustion efficiency and obtain a better Power output.

　　The intake and exhaust valves of the automobile engine are both mushroom-shaped valves, which are composed of two parts: the valve head and the valve stem. The top surface of the valve has shapes such as flat top, concave top and convex top. At present, the flat-top valve is the most widely used valve, which has a simple structure, is convenient to manufacture, and has a small heating area. Both intake and exhaust valves can be used.

　　 The valve and the valve seat or the valve seat ring are sealed by a conical surface. The angle between the valve cone and the valve top surface is called the valve cone angle. The valve cone angles of intake and exhaust valves are generally 45 degrees, and only a few engines have intake valve cone angles of 30 degrees.

The function of the 　　 valve group is to control the intake and exhaust of each cylinder through the ejector rod driven by the camshaft to realize the normal operation of the engine.

  • Time of issue:2021-08-13
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The structure of the valve group is mainly composed of valves, valve springs, valve lock clips, etc. Under normal circumstances, the diameter of the intake port is larger than the exhaust port, which is mainly to increase the intake volume to improve the combustion efficiency and obtain a better Power output.

　　The intake and exhaust valves of the automobile engine are both mushroom-shaped valves, which are composed of two parts: the valve head and the valve stem. The top surface of the valve has shapes such as flat top, concave top and convex top. At present, the flat-top valve is the most widely used valve, which has a simple structure, is convenient to manufacture, and has a small heating area. Both intake and exhaust valves can be used.

　　 The valve and the valve seat or the valve seat ring are sealed by a conical surface. The angle between the valve cone and the valve top surface is called the valve cone angle. The valve cone angles of intake and exhaust valves are generally 45 degrees, and only a few engines have intake valve cone angles of 30 degrees.

The function of the 　　 valve group is to control the intake and exhaust of each cylinder through the ejector rod driven by the camshaft to realize the normal operation of the engine.

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