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Electric fuel oil pump

A kind of fuel oil and pumping technology, which is applied in the direction of electric components, pumps, pump devices, etc., can solve the problems of armature assembly structure damage, affecting performance, and unsatisfactory structural durability, so as to prolong the service life, maintain operating efficiency, The effect of stable operating performance

Inactive Publication Date: 2017-12-29
TRICORE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the aforementioned conventional patent case, the armature assembly will directly come into contact with the fuel, so that under long-term use, the armature assembly is easily corroded by the fuel, resulting in structural damage, and may even affect performance
Therefore, the structural durability of the aforementioned conventional patents is not ideal

Method used

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  • Electric fuel oil pump
  • Electric fuel oil pump
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Embodiment Construction

[0020] The structure, features, assembly or use methods and effects of the present invention will be described in detail with reference to the following embodiments and accompanying drawings.

[0021] Such as figure 1 and figure 2 As shown, the electric fuel pump 10 of the present invention includes a casing 20 , a booster unit 30 , a stator unit 40 , and a rotor unit 80 .

[0022] The casing 20 has a tubular shell 21 , an oil inlet cover 22 , an oil outlet cover 23 and a pair of power terminals 24 . The oil inlet cover 22 is located at one end of the tubular housing 21 and has an oil inlet 25 that runs through the inner and outer two ends. The inner end surface of the oil inlet cover 22 has an arc flow channel 26. One end communicates with the oil inlet 25; the oil outlet cover 23 is located at the other end of the tubular housing 21 and has an oil outlet 27 that runs through the inner and outer two ends; the power terminal 24 is located at the oil outlet cover 23, as Fi...

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PUM

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Abstract

The invention relates to an electric fuel oil pump which comprises a machine shell, an impeller, a stator unit and a rotor unit. The machine shell is provided with an oil inlet and an oil outlet. The stator unit is arranged in the machine shell and is provided with a stator and a starting terminal set connected with the stator. The stator and the starting terminal set are wrapped by a sealing compound body so as to form an oil guide channel located between the oil inlet and the oil outlet. The rotor unit is arranged in the machine and is provided with a rotor arranged in the stator and a rotating shaft arranged on the rotor and connected with the impeller so that the rotor unit can drive the impeller to extract and guide fuel into the oil guide channel after the stator unit is electrified. In the process that the fuel passes through the oil guide channel, due to the protection effect of the sealing compound body, the stator and the starting terminal set can be prevented from making contact with fuel, and therefore the purposes of prolonging the service life and improving durability are achieved.

Description

technical field [0001] The present invention relates to electric fuel pumps, in particular to an electric fuel pump with improved durability. Background technique [0002] The electric fuel pump is mainly used to deliver a certain pressure of fuel to the carburetor through the pipeline, so that the engine can start smoothly to output power. As far as the relevant prior art is concerned, such as the patent case No. M384242 announced by China Taiwan, the armature assembly and the pump unit are inserted into the yoke tube assembly respectively and then inserted into each other. When the armature assembly starts to rotate, The pump unit will use the rotation of the impeller to provide pressurization of the fuel, and deliver the pressurized fuel out, so that the fuel flows through the yoke pipe assembly and then is discharged from the oil outlet of the upper cover assembly to the carburetor. [0003] However, in the aforementioned conventional patent case, the armature assembly ...

Claims

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Application Information

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IPC IPC(8): F04D13/06F04D29/40F02M37/08H02K11/20
CPCF02M37/08F04D13/06F04D29/406
Inventor 林柏良
Owner TRICORE CORP