Vane type electric gasoline pump body

An electric gasoline and impeller-type technology, applied in the direction of non-variable pumps, pumps, pump devices, etc., can solve the problems of uneven thickness of hardened layer, low qualified rate of finished products, and difficult to reach 90%, and achieve qualified finished products The effect of high efficiency, easy detection, and easy processing and manufacturing

Active Publication Date: 2007-10-10
重庆德格科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem existing in the existing impeller pump body is: after the inner surface of the pump chamber is hardened, the thickness of the hardened layer is not uniform, and it is not easy to detect, so that the qualified rate of the assembled finished product is not high, and it is difficult to reach 90%.

Method used

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  • Vane type electric gasoline pump body
  • Vane type electric gasoline pump body
  • Vane type electric gasoline pump body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: Referring to Fig. 1 to Fig. 6, the motor rotor 11 passes through the inner pump cover 3 to cooperate with the impeller 1, the collar 4 is in dynamic fit with the outer circle of the impeller 1, one end surface of which is in close contact with the edge of the inner pump cover, and the outer The edge of the pump cover 2 is in close contact with the other end surface of the impeller 1, and it only needs to be fixed together by the cylindrical casing of the electric gasoline pump during assembly. When working, the impeller in the pump body rotates at high speed driven by the motor, and the fuel enters one side of the pump body from the oil inlet hole 9 on the outer pump cover 2, and the high-speed rotating impeller 1 delivers the fuel from one side of the pump body to the side of the pump body On the other side, it is discharged from the oil hole 10 on the inner pump cover 3 .

Embodiment 2

[0022] Embodiment 2: Referring to Fig. 7 to Fig. 13, the motor rotor 11 passes through the inner pump cover 3 to cooperate with the impeller 1, and the collar 4 is movably matched with the outer circle of the impeller 1, and one end surface thereof is in close contact with the edge of the inner pump cover; The positioning pin 8 passes through the positioning through hole 5 on the collar 4, one end of the positioning pin 8 is inserted into the second positioning pin hole 7 of the inner pump cover 3, the edge of the outer pump cover 2 is in close contact with the other end surface of the impeller 1, and Insert the other end of the locating pin 8 into the first locating pin hole 6 of the outer pump cover 2; when assembling, the cylinder shell of the electric gasoline pump can be fixed together.

[0023] When working, the impeller in the pump body rotates at high speed driven by the motor, and the fuel enters one side of the pump body from the oil inlet hole 9 on the outer pump cov...

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PUM

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Abstract

The present invention relates to a pump body of blade-wheel type gasoline pump. It includes blade-wheel matched with motor rotor and outer pump cover contacted with one side of blade-wheel. It is characterized by that its pump chamber is a combined structure, and is composed of inner pump cover and collar, said inner pump cover is contacted with another side of said blade-wheel, and said collar is movable fit with external circumference of blade-wheel, and its two end faces are respectively tightly contacted with edge of inner pump cover and edge of outer pump cover. On the outer pump cover an oil inlet is set and on the inner pump cover an oil through hole is set.

Description

technical field [0001] The invention relates to an electric gasoline pump component, in particular to an impeller type electric gasoline pump body. Background technique [0002] The electric gasoline pump is an important part of the fuel supply part of the electronically controlled injection system, which is controlled by the electronic control unit. Fuel flows from the fuel tank through the electric gasoline pump through the fuel filter at a certain pressure and enters the fuel distribution pipe. After the ignition switch of the engine is turned on and started, the electric gasoline pump starts to run continuously at high speed to supply fuel to the engine, and the amount of fuel supplied is greater than the maximum fuel injection required by the engine, so as to maintain the output under various operating conditions. oil pressure. Therefore, the processing accuracy and quality requirements of the pump body are very high, so as to ensure its reliable performance. The str...

Claims

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Application Information

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IPC IPC(8): F04D29/40F04D29/60F04D13/06F02M37/08
Inventor 胡小平
Owner 重庆德格科技发展有限公司
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