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Top-mounted type fuel oil pump assembly

A fuel pump, top-mounted technology, applied in the field of fuel pumps, can solve the problems of protection, inability to make adaptive adjustments, inconvenient disassembly and assembly, etc.

Pending Publication Date: 2018-02-27
ZHEJIANG SHUANGLIANG AUTOMOBILE PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen from the above background technology that the fuel oil pressure delivered by the fuel pump assembly in the prior art is constant, and no adaptive adjustment can be made. When the fuel pressure is too high, the engine part needs to perform fuel return work, so it cannot play a role in the engine. Good oil pressure protection, badly in need of improvement
[0003] In addition, the various components of the existing fuel pump assembly are connected by screws, which is inconvenient to disassemble and assemble, and further optimization is urgently needed

Method used

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  • Top-mounted type fuel oil pump assembly
  • Top-mounted type fuel oil pump assembly
  • Top-mounted type fuel oil pump assembly

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Embodiment Construction

[0024] The preferred embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0025] Such as Figure 1~6 An overhead fuel pump assembly is shown, including an oil pump device, and a sensor assembly 4 and a filter screen assembly 5 arranged on the oil pump device. The oil pump device includes a pump core assembly 1 , a flange body 2 and a pressure regulating valve assembly 3 connected to the pump core assembly 1 .

[0026] The pump core assembly 1 includes a bracket 11 and a pump core 12 arranged in the bracket 11 . The bracket 11 includes a main frame 13, and a first valve end body 14 arranged on the side of the main frame 13. The main frame 13 is a hollow cylinder frame. The inside of the main frame 13 is provided with a first chamber 15, and the pump core 12 is installed on the second Inside a chamber 15 . The pressure regulating valve assembly 3 includes a valve seat 31 and a valve body 32 disposed in...

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Abstract

The invention relates to the field of fuel oil pumps, in particular to a top-mounted type fuel oil pump assembly comprising an oil pump device, a sensor assembly and a filter net assembly, wherein thesensor assembly and the filter net assembly are arranged on the oil pump device. The oil pump device comprises a pump core assembly, a flange body and a pressure adjusting valve assembly, wherein theflange body and the pressure adjusting valve assembly are connected with the pump core assembly. A first flow channel communicating with the pump core is arranged in a first end cover of a valve seat. A second flow channel communicating with a valve body is arranged in a second valve end body. A third flow channel is arranged in an output end body. The first flow channel, the second flow channeland the third flow channel constitute a tee joint. A flange body is connected to a support in a buckled manner. The pressure adjusting valve assembly is wrapped inside the flange body. An oil outlet channel communicating with the third flow channel is arranged in the flange body. According to the top-mounted type fuel oil pump assembly, the conveying pressure of fuel oil can be adjusted and controlled in real time, the fuel oil pressure is guaranteed to be constant, and good operation of an engine is guaranteed.

Description

technical field [0001] The invention relates to the field of fuel pumps, in particular to an overhead fuel pump assembly. Background technique [0002] The fuel pump assembly is installed on the fuel tank of the vehicle, and plays the role of pipeline connection in the fuel supply system of the vehicle. The fuel in the fuel tank enters into the oil storage barrel through the check valve of the oil storage barrel. After the fuel is filtered by the filter screen assembly of the fuel pump assembly, it is delivered to the The engine fuel rail is used for engine consumption, and the unconsumed fuel flows back through the filter assembly. Under the action of the assembly of the oil return joint and the assembly of the Venturi tube, a siphon effect is generated, and the excess fuel and storage in the oil return pipe are collected. The fuel oil outside the oil barrel and the fuel oil in the auxiliary fuel tank (at the far end) are transported back into the oil storage barrel to kee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M37/04F02M37/22F04B53/10F04B53/20F04B51/00F04B53/22
CPCF02M37/04F02M37/22F04B51/00F04B53/10F04B53/20F04B53/22
Inventor 蔡良宝
Owner ZHEJIANG SHUANGLIANG AUTOMOBILE PARTS