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1.磨损喷油器经常发生磨损的部位是密封锥面、喷孔、针阀与针阀孔导向面。密封锥面(针阀锥面与针阀体锥面)的磨损是由喷油器弹簧的冲击与柴油中杂质造成的。磨损后会使锥面密封环带接触面加宽、锥面变形、粗糙度增大,造成喷油嘴滴油,喷孔附近形成积炭,甚至堵塞喷孔,严重时还会出现断续的敲击声,导致柴油机工作不均匀,排气冒黑烟等。排除的方法是:拆开喷油器,
1. Wear parts of the injector often wear sealing cone, spray hole, needle valve needle hole guide surface. The wear of the sealing cones (needle cones and needle body cones) is caused by the impact of the injector spring and the impurities in the diesel fuel. Wear will make conical seal ring contact area widened, cone deformation, roughness increases, causing the nozzle drip, the formation of coke near the nozzle hole, or even plug the nozzle hole, there will be intermittent in severe cases Percussion, leading to uneven work diesel engine, exhaust black smoke and so on. Exclusion method is: open the fuel injector,