Fuel pump assembly with arch bridge type cantilever pump core fixing structure

Abstract

A fuel pump assembly with an arch bridge type cantilever pump core fixing structure comprises an oil storage barrel and a top cover, the oil storage barrel and the top cover are connected through a supporting piece, a reflux valve is installed on the top cover, a fuel pump is arranged in the oil storage barrel and horizontally installed in the oil storage barrel, the fuel pump is sleeved with a pump core fixing frame, and the pump core fixing frame is fixedly connected with the oil storage barrel. An arch bridge type cantilever is arranged between the pump core fixing frame and the inner wall of the oil storage barrel and comprises a claw part, an arch part and a connecting part, the arch part is located between the claw part and the connecting part, the claw part is connected with the inner wall of the oil storage barrel, the connecting part is connected with the pump core fixing frame, and a fine filter is arranged on one side of the fuel pump. The fine filter is fixedly mounted in the oil storage barrel, an arch bridge type cantilever is arranged, impact force is prevented from being transmitted to the oil storage barrel, inaccurate oil level caused by movement of the oil storage barrel is avoided, a rubber pad is arranged in a groove, vibration transmitted by a pump core can be absorbed, noise generated by vibration of the pump core is reduced, and comfort of the whole vehicle is improved.

Description

technical field [0001] The invention relates to a horizontal fuel pump assembly, in particular to an arch bridge type cantilever pump core fixing structure fuel pump assembly. Background technique [0002] At present, the existing horizontal fuel pump assembly mainly includes an upper cover and an oil storage box. The upper cover and the oil storage box are connected by a spring guide rod, and a fuel pump is installed in the oil storage box. , due to the impact of road conditions, bumps inevitably lead to vibrations. Therefore, in order to reduce the vibration force borne by the fuel pump, prevent damage to the fuel pump, and ensure the working stability of the fuel pump, the existing horizontal fuel pump assembly is fixed on the fuel pump. When pumping, a vibration damping pad is basically installed under the fuel pump in the oil storage box to buffer the vibration force of the fuel pump. Using this damping structure is not only inconvenient for production and assembly, but...

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Problems solved by technology

[0002] At present, the existing horizontal fuel pump assembly mainly includes an upper cover and an oil storage box. The upper cover and the oil storage box are connected by a spring guide rod, and a fuel pump is installed in the oil storage box. , due to the impact of road conditions, bumps inevitably lead to vibrations. Therefore, in order to reduce the vibration force borne by the fuel pump, prevent damage to the fuel pump, and ensure the working stability of the fuel pump, the existing horizontal fuel pump assembly is fixed on the fuel pump. When pumping, a vibration-damping pad is basically installed under the fuel pump in the oil storage box to buffer the vibration force of the fuel pump. Using this shock-absorbing structure is not only inconvenient for production and assembly, but also relatively high in cost.

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