Auto engine valve working principle introduction

Auto engine valve,  is an important part of the Auto engine. The role of the valve is specifically responsible for the input of gas into the engine and exhaust the combustion exhaust. From the engine structure, divided into the intake valve (inlet valve) and exhaust valve (exhaust valve). The role of the intake valve is to inhale the air into the engine, mixed with fuel combustion; exhaust valve role is to exhaust the exhaust gas and heat. The company is located in:

Valve material in mainland China are usually divided into 40Cr, 4Cr9Si2, 4Cr10Si2Mo, 21-4N and 23-8N total of 5 species. 5Cr8Si2, 4Cr9Si3, 21-2N, 21-12N, 23-8N, XB, etc. have been used in large quantities on some imported models. High-temperature nickel-base alloy in high-load engine exhaust valve also began to apply. The company is located in:

From the valve structure of the finished product classification, usually divided into the entire root valve, bimetallic welding valves and hollow filling sodium valve.  Additional process is usually the top of the welding pad, the top of the surfacing, cone surfacing, surface nitriding, chrome surface treatment.

Its role is dedicated to the import of fuel into the engine and exhaust emissions, the traditional engine only one intake valve and one exhaust valve per cylinder, this design is relatively simple structure, low cost, easy maintenance, low speed performance is better, the disadvantage It is difficult to improve the power, especially when high speed inflation, low efficiency, weak performance. In order to improve the efficiency of intake and exhaust, multi-valve technology is now used, common is that each cylinder is arranged with four valves (there are three or five single-cylinder valve design, the same principle, such as the Audi A6 engine), a total of 4 cylinders Is 16 valves, we often see in the car data '16V' means that the engine a total of 16 valves. This multi-valve structure is easy to form a compact combustion chamber, the fuel injector is arranged in the center, so that the fuel-air mixture can be burned more quickly and more evenly, the weight and opening of each valve is properly reduced, the valve is opened or closed faster.

Engine valve precision matters the quality, high quality automatic engine valve manufacturing machine will priduce high quality engine  valve as requested.