Toyota Automobile Fuel Pump 1200 Hours 23220-OP010 CE ROHS

Fuel System Automobile Aftermarket Spare Parts Fuel Pump 23220-OP010 For Toyota

Introduction

Fuel pump is a professional term for the auto parts industry. It is one of the basic components of the EFI automobile fuel injection system. It is located inside the vehicle fuel tank. The fuel pump works when the engine is started and the engine is running. If the engine stops and the ignition switch is still ON, the HFM-SFI control module turns off the power to the fuel pump. To avoid accidental ignition.
The function of the fuel pump is to suck fuel out of the fuel tank, pressurize it, and deliver it to the fuel supply pipe, and cooperate with the fuel pressure regulator to establish a certain fuel pressure.

The fuel pump delivers high-pressure fuel to the fuel distribution pipe to ensure continuous fuel supply to the fuel injection nozzle.
The fuel pump consists of an electric motor, a pressure limiter, and a check valve. The electric motor actually works in the fuel in the fuel pump housing. Don’t worry, because there is nothing in the housing that can be ignited. The fuel can lubricate and cool the fuel motor. There is a check valve, and the pressure limiter is located on the pressure side of the oil pump housing, with a passage leading to the oil inlet.
The ZYB ignition booster fuel pump is suitable for conveying diesel, heavy oil, residual oil, fuel oil and other media, especially suitable for the fuel pump of the burner in the road and bridge engineering mixing station. It is an ideal product to replace imported products. The ZYB booster fuel pump is not suitable for transporting highly volatile or low flash point liquids, such as ammonia and benzene.
When the rotor disc rotates, the roller is pressed outward by centrifugal force. Like a rotating oil seal, the rotor rotates and the pump works. It sucks in fuel from the oil inlet and presses the fuel into the fuel system from the oil outlet. When the oil pump is turned off , The check valve at the fuel outlet is closed to prevent fuel from flowing back to the tank through the fuel pump. The fuel pipe pressure maintained by the check valve is called "residual pressure".
The maximum pump oil pressure of the fuel pump depends on the standard of the pressure limiter. If the pressure of the fuel pump exceeds the predetermined pressure limit, the pressure limiter will open the bypass to allow the fuel to flow back to the fuel pump inlet.

Testing method of fuel pump performance

Some hard faults (such as failure to work, etc.) of automobile fuel pumps are easier to judge, but some intermittent soft faults are difficult to judge. In this regard, the method of detecting the operating current of the fuel pump by the automobile digital multimeter can be used to judge its performance, and the specific method is as follows.
(1) Put the automobile digital multimeter in the current block, press the function key (SELECT) to adjust to the direct current (DC) block, and then connect the two meter pens in series to the connection line of the tested fuel pump.
(2) Start the engine and press the dynamic recording key (MAX/MIN) of the automobile digital multimeter when the fuel pump is working, and the maximum and minimum currents of the fuel pump can be automatically recorded when the fuel pump is working. By comparing the detected data with the normal value, the cause of the failure can be judged

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