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Oil return hole: In conjunction with the inclined groove, the plunger moves up and down to achieve the processes of oil inlet, oil pressure, and oil return.Details View More
Slant/Spiral Groove: Some plungers are designed with slanted or spiral grooves to control fuel metering and injection timing.Details View More
Slant/Spiral Groove: Some plungers are designed with slanted or spiral grooves to control fuel metering and injection timing.Details View More
Piston sleeve: It is precisely matched with the plunger body to form a fuel flow channel, and the material is mostly carburizing steel or stainless steel.Details View More
The plunger body is usually made of high-strength alloy steel (such as 20CrMnTi), and the surface is quenched to improve wear resistance.Details View More
By adjusting the relative position (injection advance angle) between the fuel injection pump and the engine crankshaft, ensure that fuel is injected into the combustion chamber at the optimal time.Details View More
The plunger continues to ascend to the inclined groove or spiral groove and connects with the return hole. High pressure fuel flows back to the low-pressure chamber through the return hole, and the injection ends.Details View More
The camshaft continues to rotate, the plunger moves upward to close the inlet hole, the fuel is compressed to high pressure, and enters the high-pressure oil pipe through the outlet valve.Details View More
Oil absorption process: The camshaft rotates to push the plunger down, and the inlet hole on the plunger sleeve opens, allowing fuel to enter the plunger chamber from the low-pressure oil chamber.Details View More
Atomized fuel is fully mixed with air to improve combustion efficiency and reduce emissions.Details View MoreXUYAN
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No. 16, Building 39, Pangkou Market, Gaoyang County, Baoding City
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