Fuel pump is a technical term in the auto parts industry. It is one of the basic components of the fuel injection system of electro-hydraulic vehicles. It is located in the fuel tank of the vehicle. The fuel pump works when the engine is started and the engine is running.
The function of fuel pump is to suck the fuel out of the fuel tank, pressurize it and then transfer it to the supply pipe, and cooperate with the fuel pressure regulator to establish a certain fuel pressure.