CNC Machine: Diagram fuel pump structure and its working principle

2019年11月3日星期日

Diagram fuel pump structure and its working principle

[Asia Pump Network News] Fuel pump is a professional term for the auto parts industry, which is mainly composed of two parts of the impeller pump and the metal pump. Fuel pump can be described as an integral part of automotive fuel. Then the structure is how, exactly how it works, presumably a lot of car owners want to know, the following Xiaobian on the combination of pictures, from the car fuel pump institutions and working principle for your specific elaboration. First, the schematic diagram of the fuel pump Fuel pump structure are used as a permanent magnet DC motor as a power, the motor structure is simple, low cost, with high speed characteristics, according to the size of the torque can automatically adjust the speed. The structure of the vane pump generally adopts high-speed rotation of the vane in the oil passage, and the fuel is sucked in from the inlet and discharged from the outlet. The metal pump relies mainly on the constant volume change to suck in the fuel in the oil inlet and extrude the fuel in the oil outlet, or In the fuel into the fuel inlet closed, the fuel will continue to export. No matter what kind of structure, the purpose is to import fuel into the fuel and export the fuel to be discharged. Schematic diagram of the working principle of the fuel pump The working principle is: After the permanent magnet motor is energized to drive the pump body to rotate, the fuel is sucked in from the oil sump, flows through the inside of the electric fuel pump, and then is pressed out from the oil outlet to supply oil to the fuel system. Fuel pump casing crimping riveting at both ends, so that the various components of a non-removable assembly, the electric fuel pump is generally not repaired. Additional features of the fuel pump by the safety valve and check valve to complete the role of safety valve is to avoid the fuel pipeline obstruction, the pressure is too high cause pipe rupture or damage the fuel pump phenomenon. The relief valve has a nominal pressure of 2.6 bar and the check valve is set to prevent oil from sealing the circuit when the fuel pump is out of service, keeping the fuel system at a residual pressure for the next engine start-up. The fuel pump is installed on the bottom shell in the fuel tank of the vehicle, and the bottom shell of the fuel tank is provided with a sump partially subsided. The oil pump sucks oil from the sump when it is working. The oil outlet is connected with the external oil supply pipe through the fuel tank cap through the oil pipe. The above is the description of the fuel pump structure and the working principle of the fuel pump instructions, I hope your understanding and understanding of the fuel pump to provide some help. This article is published by Asia Fluid Network Editor, please indicate Asia Fluid Network, Service Hotline:, QQ:, Editor: Zeng Fen

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