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一台成都内燃机厂生产的490直喷式柴油机,匹配了锦江油泵厂生产的Ⅰ号喷油泵,调速器为机械全程式。该机在使用中出现怠速运转不平稳现象,调整怠速螺钉没有合适的怠速转速,要不然怠速太高,要不就怠速又发抖。 初步分析:怠速油量不均匀度超差;拉杆衬套间隙过大;操纵轴套、滑动盘轴承磨损过大;拉杆回位弹簧松旷或者油嘴雾化严重不
A direct injection diesel engine produced by Chengdu Internal Combustion Engine Factory matches the No.1 injection pump manufactured by Jinjiang Oil Pump Factory and the governor is a mechanical full-process. The machine appears in use during the idle operation is not smooth, adjust the idle screw speed is not appropriate idle, or else idle speed is too high, or to idling and shaking. Preliminary analysis: idling oil unevenness; pull bushing clearance is too large; steering sleeve, sliding bearing wear is too large; pull rod return spring Song Kuang or nozzle atomization is not serious