High pressure pump VG1560080022 VG1560080023 for SINOTRUK HOWO 371HP PS8500 Truck Fuel Injection Pump Assembly Spare parts

Working principle of high-pressure pump VG1560080022 VG1560080023

1. Suction stroke: The fuel pump pumps the fuel from the fuel tank, passes through a filter with an oil-water separator, and enters the high-pressure pump through the fuel inlet pipe. During the suction process, the downward movement of the pump piston provides the power for suction, and at the same time, the fuel inlet valve opens, and the fuel is sucked into the pump chamber.

2. Pumping stroke: The camshaft makes the plunger of the pump move up and down according to the shape of the cam. When the plunger moves upward, the fuel in the pump chamber is compressed and the pressure increases. When a certain pressure is reached, the oil outlet valve opens, and the fuel is pressed into the common rail or fuel distribution pipe and delivered to the injector.

3. Return stroke: In some cases, such as when the fuel pressure is too high or the amount of fuel required by the engine is reduced, the excess fuel will flow back to the fuel tank through the return channel to adjust the fuel pressure and flow to ensure the normal operation of the fuel system.

Application advantages of high-pressure pump VG1560080022 VG1560080023

1. High reliability: After rigorous design and testing, it can adapt to the complex working environment and working conditions of heavy trucks. During long-term use, it maintains stable perforce, reduces the probability of failure, and reduces maintenance costs and downtime.

2. Good adaptability: specially designed for the engine fuel system of Sinotruk HOWO 371HP PS8500 truck, it can be well matched with other components of the vehicle, such as the engine, injector, fuel filter, etc., to ensure the efficient operation of the entire fuel injection system.

3. Meet emission standards: Through precise fuel injection control, the fuel is fully burned, which helps to reduce the emission of harmful substances in the exhaust gas, meet national and regional environmental emission standards, enable vehicles to legally drive on the road, and reduce pollution to the environment.