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1.7 化油器自动阻风门结构和工作原理 化油器阻风门的关闭时间和角度对发动机工作影响很大:关闭过严或关闭时间过长,会造成混合气过浓,使其不能完全燃烧,这不但使缸壁润滑变差,磨损加剧,而且使排气中的HC含量增加;关闭不严或关闭时间过短,将导致起动时混合气过稀,发动机起动困难、工作不稳或熄火。为此,进口汽车化油器上设置了自动阻风门。 目前应用的自动阻风门有排气加热控制式、水温加热控制和电加热控制式三种,前两
1.7 carburetor automatic choke structure and working principle Carburetor choke closing time and angle of great impact on the work of the engine: close too close or off time is too long, it will cause the mixture too thick, it can not be completely burned, This not only worsens the lubrication of the cylinder wall but also increases the wear and tear but also increases the HC content in the exhaust gas. Failure to close the valve or closing the valve for a short time will result in a lean mixture during start-up, difficulty in starting the engine, unstable operation or stalling. To this end, the import car carburetor set automatic choke. The current application of automatic choke exhaust gas heating control, water heating control and electric heating control of three, the first two