Do you know these techniques? Safety operation technology of high pressure oil pump!

1. It is necessary to ground the power supply and the enclosure. The test can be carried out only after the insulation of the line is checked.
2. Before the high-pressure oil pump works, loosen the regulating valves of each oil circuit, and then start the oil pump. After the empty load works normally, lock the oil return valve, gradually screw in the oil valve rod, increase the load, and pay attention to whether the pointer of the pressure gauge is normal.
3. When the oil pump stops working, the oil return valve shall be loosened gradually, and the jack oil pipe joint nut can be removed after the pressure gauge returns to the zero position gradually. Prevent the removal and replacement of oil pipe or pressure gauge under load.
4. It is better to select two-way double oil pumps with the same oil delivery.
The high-pressure oil pump is the interface between the high-pressure circuit and the low-pressure circuit. Under all working conditions, it is mainly used to supply the high-pressure fuel that meets the requirements in the full service life of the vehicle, and it is also necessary to ensure the rated fuel supply and pressure demand for the smart start.
It is composed of three radial plungers with an angle of 120 degrees. The three oil plungers are driven by the cams on the driving shaft to stop reciprocating operation. When the plunger moves downward, the oil suction valve will open for oil suction stroke, allowing low-pressure fuel to enter the pump chamber. When the plunger reaches the bottom dead center, the oil inlet valve will close, and the fuel in the pump chamber will be pressurized under the effect of upward movement of the plunger, and then be delivered to the pressure storage In the vessel, waiting for eruption;
The high-pressure oil pump is the interface between the high-pressure circuit and the low-pressure circuit. Under all working conditions, it is mainly used to supply the high-pressure fuel that meets the requirements in the full service life of the vehicle, and it is also necessary to ensure the rated fuel supply and pressure demand for the smart start.
Loosen the regulating valves of each oil circuit, and then start the oil pump. After the no-load operation is normal, lock the oil return valve, gradually screw in the oil valve rod, increase the load, and pay attention to whether the pointer of the pressure gauge is normal.

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