Good Quality Manufacturer Heavy Duty Truck FUEL PUMP For BENZ 911/814
Fuel pump is a professional term in the auto parts industry. It is one of the basic components of the EFI vehicle fuel injection system, located inside the vehicle fuel tank, the fuel pump works when the engine is started and the engine is running, if the engine is stopped and the ignition switch is still ON, the HFM-SFI control module turns off the power of the fuel pump to avoid accidental ignition.
The function of the fuel pump is to suck the fuel from the fuel tank, pressurize it and then transport it to the oil supply pipe, and cooperate with the fuel pressure regulator to establish a certain fuel pressure.
The fuel pump delivers high pressure fuel to the distribution line to ensure a continuous supply of fuel to the nozzle.
The fuel pump is composed of an electric motor, pressure limiter, inspection valve, the electric motor actually works in the fuel oil pump shell, do not worry, because there is nothing in the shell that can be ignited, the fuel can lubricate and cool the fuel motor, the oil outlet is equipped with an inspection valve, the pressure limiter is located on the pressure side of the oil pump shell, with a channel leading to the oil inlet.
ZYB type ignition booster fuel pump is suitable for transporting diesel oil, heavy oil, residual oil, fuel oil and other media, especially suitable for the fuel pump of the burner in the mixing station of road and bridge engineering, is an ideal product to replace the imported products. ZYB type pressurized fuel pump is not suitable for transporting highly volatile or low flash point liquids, such as ammonia, benzene, etc.
When the rotor rotates, the roller is pressured outward by centrifugal force, like a rotating oil seal, the rotor rotates, the pump works, suction fuel from the oil inlet, and pressure the fuel from the oil outlet into the fuel system, when the oil pump is closed, the inspection valve of the oil outlet is closed to prevent the fuel from flowing back to the tank through the fuel pump, and the fuel pipe pressure maintained by the inspection valve is called "residual pressure".
The maximum pump pressure of the fuel pump depends on the standard of the pressure limiter. If the fuel pump pressure exceeds the predetermined pressure limit, the pressure limiter will open the bypass to allow the fuel to flow back to the fuel pump inlet.