喷油器的常见故障与保养维修

喷油器是柴油机的关键部件，它易产生的故障有：滴油、针阀咬死、针阀与针阀导向面磨损、喷孔扩大、喷油器雾化不良、用错针阀偶件、针阀体的端面磨损、喷油器与缸盖结合孔漏气窜油等。详细分析了这些故障产生的原因，并提出了排除故障的方法。

Trouble of Fuel Injector Easily occurred and Its Repair and Maintenance

The fuel injector is a critical part of Diesel engine,the troubles occurred easily are: dropping fuel,needle valve jamming,wear between needle valve and guiding surface of valve hole, enlarged injection orifice, inferior atomizing ability of fuel injector, incorrect use of needle valve coupling part,end wear of needle valve body,air leakage and fuel blow -by in the joint hole of fuel injector and the cylinder head, etc. The causes of troubles are analyzed in detail and the troubleshootings are introduced.