CN202209275U - Gear pump assembly of electric fuel pump - Google Patents
Gear pump assembly of electric fuel pump Download PDFInfo
- Publication number
- CN202209275U CN202209275U CN2011203489670U CN201120348967U CN202209275U CN 202209275 U CN202209275 U CN 202209275U CN 2011203489670 U CN2011203489670 U CN 2011203489670U CN 201120348967 U CN201120348967 U CN 201120348967U CN 202209275 U CN202209275 U CN 202209275U
- Authority
- CN
- China
- Prior art keywords
- gear
- pump
- electric fuel
- pump assembly
- sliding bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a gear pump assembly of an electric fuel pump, which includes a pump body, an inner gear and an outer gear, wherein the inner gear and the outer gear are eccentrically arranged with the inner hole of the pump body. The gear pump assembly of the electric fuel pump is characterized in that a sliding bearing is arranged between the excircle of the inner gear and the inner hole of the pump body and the sliding bearing is fixedly arranged in the inner hole of the pump body. The gear pump assembly of the electric fuel pump has low energy consumption, high working efficiency and long service life.
Description
Technical field
The utility model relates to a kind of electric fuel punp, is specifically related to a kind of gear pump assembly of electric fuel punp.
Background technique
Fuel oil pump assembly is installed in the automotive oil tank, and electric fuel punp is the critical piece of fuel oil pump assembly, and it provides pressure oil for the automobile oil feed line.The electric fuel punp of existing technology, its gear pump assembly comprises the pump housing, internal gear and external gear, the endoporus of internal gear, external gear and the pump housing is eccentric to be provided with, the rotatable cooperation between the cylindrical of internal gear and the endoporus of the pump housing.The shortcoming of said structure is: when the rotor of electric fuel punp drives the external gear rotation; Can produce relative high-speed rotation between the cylindrical of internal gear and the endoporus of the pump housing; Though have oil lubrication between the two, high friction coefficient is arranged after all, so the power consumption of gear pump assembly is higher, working efficiency is lower; Owing to wear and tear, the working life of part is shorter simultaneously.
Summary of the invention
To the deficiency that existing technology exists, the purpose of the utility model aims to provide the gear pump assembly of the electric fuel punp of a kind of low in energy consumption, high working efficiency, long service life.
The utility model is implemented through following technological scheme:
The gear pump assembly of electric fuel punp; Comprise the pump housing, internal gear and external gear; The endoporus of internal gear, external gear and the pump housing is eccentric to be provided with, and it is characterized in that: be provided with sliding bearing between the cylindrical of internal gear and the endoporus of the pump housing, sliding bearing fixedly installs at the endoporus of the pump housing.
The advantage of technique scheme is: through sliding bearing is set, the friction factor when reducing the internal gear rotation will effectively reduce power consumption when gear pump assembly is worked like this, increase work efficiency, because wearing and tearing are little, is able to prolongation the working life of part simultaneously.
As optimal technical scheme, said sliding bearing is the steel ring of surfaces coated agglomeration tetrafluoroethylene.The sliding bearing of said structure not only intensity is high, and wear resistance is good, and friction factor is low.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the A-A view of Fig. 1.
Embodiment
With reference to accompanying drawing 1,2 and 3; The gear pump assembly of the electric fuel punp of the utility model; Comprise the pump housing 1, loam cake 7, lower cover 6, gear pump bearing 5, internal gear 3 and external gear 4, loam cake 7 and lower cover 6 are fixedly connected on the both ends of the surface of the pump housing 1, and said gear pump bearing 5 is fixedly connected with lower cover 6; Said external gear 4 is movably set on the gear pump bearing 5; The endoporus of internal gear 3, external gear 4 and the pump housing 1 is eccentric to be provided with, and is provided with sliding bearing 2 between the endoporus of the cylindrical of internal gear 3 and the pump housing 1, and said sliding bearing 2 is the steel ring of surfaces coated agglomeration tetrafluoroethylene; The outer ring of sliding bearing 2 is press-fitted the endoporus of the into said pump housing 1 and fixes, the rotatable cooperation between the cylindrical of the endoporus of sliding bearing 2 and internal gear 3.Because during gear pump assembly work; Internal gear can be in the endoporus high-speed rotation of sliding bearing, but the friction factor that rotates is very little, so the power consumption during gear pump assembly work can lower, high working efficiency; Because wearing and tearing are little, be able to the working life of part prolong simultaneously.
Claims (2)
1. the gear pump assembly of electric fuel punp; Comprise the pump housing, internal gear and external gear; The endoporus of internal gear, external gear and the pump housing is eccentric to be provided with, and it is characterized in that: be provided with sliding bearing between the cylindrical of internal gear and the endoporus of the pump housing, sliding bearing fixedly installs at the endoporus of the pump housing.
2. the gear pump assembly of electric fuel punp as claimed in claim 1, it is characterized in that: said sliding bearing is the steel ring of surfaces coated agglomeration tetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203489670U CN202209275U (en) | 2011-09-09 | 2011-09-09 | Gear pump assembly of electric fuel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203489670U CN202209275U (en) | 2011-09-09 | 2011-09-09 | Gear pump assembly of electric fuel pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202209275U true CN202209275U (en) | 2012-05-02 |
Family
ID=45988825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203489670U Expired - Fee Related CN202209275U (en) | 2011-09-09 | 2011-09-09 | Gear pump assembly of electric fuel pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202209275U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953979A (en) * | 2012-10-25 | 2013-03-06 | 浙江吉利汽车研究院有限公司杭州分公司 | Internal gearing oil pump |
| CN105986994A (en) * | 2015-01-27 | 2016-10-05 | 宁波贝司特泵业有限公司 | 24V controller-built-in methanol external-connected fuel oil pump with brushless motor |
| CN108700062A (en) * | 2016-02-25 | 2018-10-23 | 罗伯特·博世有限公司 | Pump for fuel, preferably diesel fuel to be fed to internal combustion engine |
-
2011
- 2011-09-09 CN CN2011203489670U patent/CN202209275U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953979A (en) * | 2012-10-25 | 2013-03-06 | 浙江吉利汽车研究院有限公司杭州分公司 | Internal gearing oil pump |
| CN102953979B (en) * | 2012-10-25 | 2015-12-09 | 浙江吉利汽车研究院有限公司杭州分公司 | A kind of internal gear-meshing oil pump |
| CN105986994A (en) * | 2015-01-27 | 2016-10-05 | 宁波贝司特泵业有限公司 | 24V controller-built-in methanol external-connected fuel oil pump with brushless motor |
| CN105986994B (en) * | 2015-01-27 | 2019-05-03 | 宁波贝司特泵业有限公司 | A kind of 24V uses the built-in controller methanol circumscribed fuel pump of brushless motor |
| CN108700062A (en) * | 2016-02-25 | 2018-10-23 | 罗伯特·博世有限公司 | Pump for fuel, preferably diesel fuel to be fed to internal combustion engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120502 Termination date: 20120909 |