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1 引言 众所周知在柴油燃油系统中喷油嘴及其总成的故障是较频繁的,实践表明目前国产喷油嘴和喷油器总成的质量还远未能满足用户的要求,据最新国家技术监督局油泵油嘴产品质量检测中心抽样结果:1993年对43家油泵油嘴厂的344台喷油器总成(其中长
1 Introduction As we all know in diesel fuel injection system and its assembly failure is more frequent, practice shows that the current domestic fuel injector and injector assembly is still far from the quality of the user’s requirements, according to the latest national technology Supervision Bureau of the pump nozzle product quality testing center sampling results: In 1993 43 pump nozzle factory of 344 injector assemblies (of which length