The function of the high-pressure oil pump solenoid valve. What will happen if the high-pressure oil pump solenoid valve is broken?

High pressure oil pump electromagnetic Valve function

The high-pressure oil pump is a key link in fuel pressurization. After the low-pressure oil pump sends the fuel to the high-pressure oil pump, the high-pressure oil pump can pressurize the gasoline to a pressure of more than ten MPa (this is Thirty to forty times the pressure of ordinary gasoline pumps) and sends it into the fuel rail. The high-pressure oil pump is usually driven by a camshaft, and has a double-head or three-head cam inside for pressurization.

The high-pressure oil pump is also integrated with an electronic rail pressure regulator (FRP), which is controlled by the ECMSolenoid valve, the ECM controls the oil pressure regulator in a pulse width modulation manner. The oil pressure regulator controls the inlet valve of the high-pressure fuel pump to control the fuel pressure. When the drive circuit fails, the high-pressure oil pump enters low-pressure mode and the engine can still run in emergency mode.

What will happen if the solenoid valve of the high-pressure oil pump is broken

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When the solenoid valve of the car's oil pump is damaged, the car's The oil system will malfunction, and the difficulty of throttle adjustment will also increase. When the car presses the accelerator, problems such as jumping or stopping of refueling may occur.

There is a closed chamber in the solenoid valve of the oil pump. There are basically holes at different positions, and each hole is basically connected to a different oil pipe. There is a piston in the middle of the chamber and electromagnets on both sides, which can open or close the oil drain hole by adjusting the movement of the valve body.

In most cases, the oil inlet hole is normally open, so that the hydraulic oil will enter the different oil drain pipes, and then the engine can work normally. When the oil pumpSolenoid Valve is damaged, the engine oil will not function properly. Transportation will affect the power output of the car when refueling, affect the normal operation of the engine, and cause symptoms such as weak acceleration, no refueling, idling jitter, and loud engine noise.

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