Internal oil passing structure of diesel pump

A diesel pump and oil passing technology, which is applied in the direction of fuel injection pumps, internal combustion piston engines, charging systems, etc., can solve the problems of engine starting difficulties and cold starting difficulties, and achieve improved starting difficulties, reduced wear, and good oil pumping performance Effect

Active Publication Date: 2022-07-08
ZHEJIANG SHUANGLIANG AUTOMOBILE PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, the present invention provides an internal oil passing structure of the diesel pump, which solves the problem of difficult starting of the engine, especially the difficulty of cold starting

Method used

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  • Internal oil passing structure of diesel pump
  • Internal oil passing structure of diesel pump
  • Internal oil passing structure of diesel pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] like Figure 1-6 As shown, an internal oil passing structure of a diesel pump includes a filter screen assembly 2, a one-way valve assembly 3, an oil inlet assembly 4 and an oil pump motor 5, which are sequentially arranged in the casing 1 from bottom to top. The top of 1 is fixed with an organic cover 6, the bottom of the cover 6 is an oil cavity 7, the top is provided with an oil outlet assembly 8, and the oil cavity 7 is provided with a pressure relief valve assembly 9, and the one-way valve assembly 3. It is fixed above the filter screen assembly 2 through the mounting seat 10. The mounting seat 10 is provided with an oil inlet channel 11, and the oil inlet channel 11 is communicated with the oil inlet of the oil inlet assembly 4. The direction valve assembly 3 is communicated with the oil outlet of the oil inlet assembly 4. When the diesel pump is energized, the one-way valve assembly 3 is closed, and the fluid enters the oil inlet assembly 4 from the oil inlet cha...

Embodiment 2

[0032] like Figure 1-6 As shown, an internal oil passing structure of a diesel pump includes a filter screen assembly 2, a one-way valve assembly 3, an oil inlet assembly 4 and an oil pump motor 5, which are sequentially arranged in the casing 1 from bottom to top. The top of 1 is fixed with an organic cover 6, the bottom of the cover 6 is an oil cavity 7, the top is provided with an oil outlet assembly 8, and the oil cavity 7 is provided with a pressure relief valve assembly 9, and the one-way valve assembly 3. It is fixed above the filter screen assembly 2 through the mounting seat 10. The mounting seat 10 is provided with an oil inlet channel 11, and the oil inlet channel 11 is communicated with the oil inlet of the oil inlet assembly 4. The direction valve assembly 3 is communicated with the oil outlet of the oil inlet assembly 4. When the diesel pump is energized, the one-way valve assembly 3 is closed, and the fluid enters the oil inlet assembly 4 from the oil inlet cha...

Embodiment 3

[0037] like Figure 1-6 As shown, an internal oil passing structure of a diesel pump includes a filter screen assembly 2, a one-way valve assembly 3, an oil inlet assembly 4 and an oil pump motor 5, which are sequentially arranged in the casing 1 from bottom to top. The top of 1 is fixed with an organic cover 6, the bottom of the cover 6 is an oil cavity 7, the top is provided with an oil outlet assembly 8, and the oil cavity 7 is provided with a pressure relief valve assembly 9, and the one-way valve assembly 3. It is fixed above the filter screen assembly 2 through the mounting seat 10. The mounting seat 10 is provided with an oil inlet channel 11, and the oil inlet channel 11 is communicated with the oil inlet of the oil inlet assembly 4. The direction valve assembly 3 is communicated with the oil outlet of the oil inlet assembly 4. When the diesel pump is energized, the one-way valve assembly 3 is closed, and the fluid enters the oil inlet assembly 4 from the oil inlet cha...

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Abstract

The internal oil passing structure comprises a filter screen assembly, a one-way valve assembly, an oil inlet assembly and an oil pump motor which are sequentially arranged in a machine shell from bottom to top, a machine cover is fixed to the top of the machine shell, an oil cavity is formed in the bottom of the machine cover, an oil outlet assembly is arranged at the top of the machine cover, and a pressure relief valve assembly is arranged in the oil cavity. The one-way valve assembly is fixed above the filter screen assembly through a mounting seat, an oil inlet channel is arranged on the mounting seat and communicated with an oil inlet of the oil inlet assembly, the one-way valve assembly is communicated with an oil outlet of the oil inlet assembly, when the diesel pump is powered on, the one-way valve assembly is closed, and fluid enters the oil inlet assembly from the oil inlet channel, and when the diesel pump is powered off, the one-way valve assembly is closed. The one-way valve assembly opens and fluid enters the diesel pump from the one-way valve assembly. The problem that an engine is difficult to start is solved, the method is particularly suitable for oil supply systems such as diesel oil with weak fluidity, and good oil pumping performance and ignition speed can be kept even at low temperature.

Description

technical field [0001] The invention relates to an internal oil-passing structure of a diesel pump. Background technique [0002] The electric fuel pump delivers sufficient fuel to the injectors and maintains the rated pressure to ensure efficient fuel injection. The electric fuel pump is an extremely important component of the fuel supply system and plays an important role in ensuring the smoothness and stability of the fuel circuit. The electric fuel pump is usually a mechatronics component device composed of a micro-special motor connected to a micro-oil pump and packaged by a casing and auxiliary parts. It is used in the gasoline or diesel engine fuel supply system to deliver the fuel in the fuel tank to the engine (GB / T25984 .1-2010). [0003] Electric fuel pumps can generally be divided into two types: brushed electric fuel pumps and brushless electric fuel pumps. Brushless pumps are favored because of their long service life, not easy to wear, and low interference a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M37/34F02M37/44F02M59/46
CPCF02M59/46F02M59/464F02M37/34F02M37/44Y02T10/12
Inventor 蔡良宝蔡良丰杨奔
Owner ZHEJIANG SHUANGLIANG AUTOMOBILE PARTS
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