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柴油机喷油器上的回油管常常被机手所忽视,其实它对于保证发动机的正常工作起了很大作用,在实际使用中应做到“三保持”.保持畅通 设置回油管的目的,是让难以避免的、从喷油器针阀与针阀体间隙泄漏的柴油回收利用.如果回油管被堵死,这些柴油便积聚在喷油器的上方,严重时阻碍针阀的上下运动,使喷油器无法正常喷油,因此不可拆除或堵死.保持密封 常见一些柴油机的回油管接头处漏油,不仅影响车容,而且容易吸入空
The return pipe on the diesel injector is often neglected by the driver, in fact, it plays a very important role in ensuring the normal operation of the engine and should be “three-maintained” in actual use. The purpose of keeping the return pipe open is So that it is difficult to avoid the diesel oil leaked from the gap between the injector needle and the needle valve body, and if the oil return pipe is blocked, these diesel oil will accumulate on the top of the injector and block the vertical movement of the needle valve Injector can not be normal fuel injection, it can not be removed or blocked. Maintain a seal common Some diesel oil return pipe joints at the oil leakage, not only affect the car capacity, but also easy to breathe empty