Fuel pump assembly capable of automatically adjusting rotating speed

Abstract

The invention discloses a fuel pump assembly capable of automatically adjusting the rotating speed, and belongs to the technical field of automobile accessories. A pump core is fixedly installed on the inner wall of a fuel tank, one end of the pump core is fixedly connected with an oil inlet pipe, the surface of the oil inlet pipe is fixedly sleeved with a threaded head, the surface of the threaded head is connected with a coarse filter sleeve through threads, and an oil inlet is formed in the other end of the coarse filter sleeve; and the inner wall of the coarse filter sleeve is connected with an elastic cushion in a sleeving manner, one surface of the elastic cushion is connected with one surface of a filter piece in a contact manner, and a filter net is arranged in the center of the filter piece. According to the fuel pump assembly capable of automatically adjusting the rotating speed, an arranged buffer sleeve has the effect of buffering and releasing force, impact force generatedduring pressure releasing of a pressure release valve can be prevented from piercing the fuel tank, the anti-piercing function is achieved, the service life of the fuel pump assembly is prolonged, the arranged filter piece and the arranged coarse filter sleeve have the function of rapid disassembly and assembly, the coarse filter sleeve and the oil inlet pipe are convenient to assemble and disassemble, and the assembly speed of the fuel pump assembly is greatly increased.

Description

technical field [0001] The invention relates to the technical field of auto parts, and more specifically relates to a fuel pump assembly with automatic speed adjustment. Background technique [0002] The fuel pump draws fuel from the fuel tank, and sends the fuel to the fuel injector in the engine compartment through the delivery pipeline. The fuel injector injects the fuel under a certain pressure into the combustion chamber for combustion. [0003] At present, most of the pressure relief valves installed in the existing fuel pump assembly that automatically adjusts the speed have no anti-puncture function. When the pressure is released during use, the discharged fuel with a certain impact will continue to impact the inner wall of the fuel tank. , If things go on like this, it may cause damage to the fuel tank and oil leakage, shorten the service life of the fuel tank, and have certain safety hazards, and most of the coarse filter screens are welded and fixed with the pump ...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the pressure relief valves installed in the existing fuel pump assembly that automatically adjusts the speed have no anti-puncture function. When the pressure is released during use, the discharged fuel with a certain impact will continue to impact the inner wall of the fuel tank. , If things go on like this, it may cause damage to the fuel tank and oil leakage, shorten the service life of the fuel tank, and have certain safety hazards, and most of the coarse filter screens are welded and fixed with the pump core, which takes time to assemble and reduces the fuel pump. assembly efficiency

Images