燃油泵应能在长时期内不加保养而可靠地运转。因此需要结构坚固、封油良好。新型的摇臂操纵活塞泵优点是体积小,外部密封,通过泵内的燃料方向并不改变。该泵的组成部分是壳罩1、法兰2、拧在油封内的活塞导向部分3、活塞4、挺杆5、摇臂6、两个阀门7、8。上述的优点是由各个零件相互装配的适宜而来的,特别在于泵内零件的分配关系。 Fuel pumps should be able to operate without any maintenance over a long period of time. Therefore, the need for a solid structure, sealing oil well. The advantages of the new rocker-arm piston pump are the small size, the external seal, and the direction of fuel flow through the pump. The pump consists of a housing 1, a flange 2, a piston guide 3 screwed into the oil seal, a piston 4, a tappet 5, a rocker arm 6, two valves 7, 8. The above advantages are due to the fitting of the individual parts to one another, in particular the distribution of the parts in the pump.