出油阀偶件是柴油机燃油供给系中三对精密偶件之一。在使用过程中,由于阀与阀座的高速撞击和柴油中所含磨料的切削作用,使出油阀遭到磨损,严密性下降,进而对柴油机的性能产生不良影响。对出油阀的整个磨损过程及其特点缺乏全面认识,在制定有关保养规程和报废标准方面就会产生片面性。出油阀磨损给柴油机带来的不良影响又往往被使用修理人员所忽视,使柴油机长时间地在性能不佳,特别是耗油率较高的情况 Outlet valve coupling is one of three pairs of precision couplings in the diesel fuel supply. In use, due to the valve and the seat of the high-speed impact and the abrasive contained in the diesel cutting effect, so that the valve is worn, tightness, and thus adversely affect the performance of the diesel engine. The lack of a comprehensive understanding of the entire wear process and characteristics of the delivery valve creates one-sidedness in the development of the maintenance procedures and end-of-life standards. Oil valve wear to the adverse effects of diesel engines are often neglected by the use of repairer, the diesel engine for a long time in poor performance, especially in the case of higher fuel consumption