CN2751155Y - Electric fuel pump for automobile engine - Google Patents
Electric fuel pump for automobile engine Download PDFInfo
- Publication number
- CN2751155Y CN2751155Y CN 200420081966 CN200420081966U CN2751155Y CN 2751155 Y CN2751155 Y CN 2751155Y CN 200420081966 CN200420081966 CN 200420081966 CN 200420081966 U CN200420081966 U CN 200420081966U CN 2751155 Y CN2751155 Y CN 2751155Y
- Authority
- CN
- China
- Prior art keywords
- pump
- outer ring
- endless belt
- utility
- electric jet
- 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 - Lifetime
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Abstract
The utility model discloses an electric fuel pump for an automobile engine. The utility model comprises a pump core which is composed of an eccentric planetary gear engaging driving mechanism, and an outer ring of a pump body, wherein the outer ring of the pump body is movably matched with the pump core. A layer of non-metal wear resistance lubricating isolating ring belt is fixedly arranged between the rotating combining surfaces where the outer ring of the pump body and the pump core are matched, which leads the frictional force caused by the rotation of the pump core to be decreased. Therefore, the utility model overcomes the defects that high heat can be generated between rigidity contact matching combining surfaces, the noise is large, the rate of energy consumption is low, the output efficiency is low, the abrasion is serious and the service life is short.
Description
Affiliated technical field
The utility model relates to a kind of electric jet pump that is used for motor car engine.
Background technique
The electric jet pump that is used for motor car engine in the known technology is pump core of being made by powder metallurgical body and the pump housing outer ring of matching with the pump core.The pump core is under the drive of motor, by the gear drive high speed rotating in the eccentric circumference of pump housing outer ring of self.Because there is not the relative movement of the perfect rigidity of isolation, it is bigger to wear and tear between pump core and the outer ring.Owing to be form movingly between fitting surface, thereby have bigger frictional force with the rigidity contact, cause the fitting surface wearing and tearing, shortened the working life of electric jet pump work.Fricative high hear rate energy rate height between fitting surface, noise is big, delivery efficiency is low.
The utility model is further improvement and the development to the prior art electric jet pump.
Summary of the invention:
The utility model provides a kind of friction factor little at prior art above shortcomings part, and it is low to generate heat, the electric jet pump of long service life.
The technical scheme in the invention for solving the technical problem is: a kind of electric jet pump that is used for motor car engine comprise a pump core of forming by gear drive with pump core movingly pump housing outer ring mutually, its special way is: be embedded with the nonmetal wear-resistant self-lubricating of one deck and isolate endless belt between the rotation junction plane that they match.
The utility model compared with prior art has following beneficial effect.
Because the build-in that moves with the touch between face at pump housing outer ring and pump core has nonmetal wear-resistant self-lubricating isolation endless belt, has less friction factor.The frictional force that makes the rotation of pump core produce reduces greatly, produces high heat between rigidity contact matching junction plane thereby overcome, and noise is big, and the power consumption rate is low, and delivery efficiency is low, serious wear, the defective that working life is short.
This description of drawings:
Fig. 1 is the utility model master TV structure schematic representation.
Fig. 2 is an isolating ring band structure schematic representation of the present utility model.
Embodiment:
Fig. 1 has described the most preferred embodiment of being produced by the machining manufacturing.On the circumferential end faces of pump housing outer ring 1, be evenly equipped with the fastener hole 3 of 90 ° of four each intervals.The inner cylindrical surface of described pump housing outer ring 1 tightens intrinsic one deck and its nonmetal wear-resisting lubricated isolation endless belt 6 with the circle footpath.This isolation endless belt 6 is made by Teflon material 9, also can be to be made or similarly had wear-resisting other lubricious nonmetallic material and make by the fluorine moulding material.Because the interior cylinder iron-based face 7 of pump housing outer ring 1 is difficult for and nonmetal polymerization, so should between rotation junction plane and nonmetal wear-resistant self-lubricating isolation endless belt 6 copper medium annulus matrix 8 be housed, this matrix can adopt honeycomb copper medium.
The cylindrical of the interior circle of affiliated isolation endless belt 6 and the inner ring 5 of the pump housing movingly.Pump in-core gear 2 cooperates with the eccentric planet meshed transmission gear form of known technology, or cooperates with the drive mechanism of other known forms.The middle part of pump in-core gear 2 is shaped on the composite bearing axis hole 4 that is connected with motor output shaft.Pump in-core gear 2 is rotating in pump housing outer ring under the drive of motor.In the above-described embodiments, do not get rid of those of ordinary skill change of present technique field or conversion, such as nonmetal wear-resisting lubricated endless belt is fixed on the excircle of pump in-core gear 2, also should be in protection domain of the present utility model.
Claims (5)
1. electric jet pump that is used for motor car engine, comprise: pump core of forming by gear drive with pump core movingly pump housing outer ring mutually, it is characterized in that: between the rotation junction plane that they match, be fixed with the nonmetal wear-resistant self-lubricating of one deck and isolate endless belt.
2. by the described electric jet pump of claim 1, it is characterized in that: described isolation endless belt is made by the Teflon material.
3. by the described electric jet pump of claim 1, it is characterized in that: described isolation endless belt is made by the fluorine moulding material or is similarly had wear-resisting other lubricious nonmetallic material and make.
4. by claim 1 or 2 or 3 described electric jet pumps, it is characterized in that: between the nonmetal wear-resistant self-lubricating isolation of the described rotation junction plane endless belt copper dielectric matrix is housed.
5. by the described electric jet pump of claim 3, it is characterized in that: described copper dielectric matrix is a honeycomb copper dielectric matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420081966 CN2751155Y (en) | 2004-08-19 | 2004-08-19 | Electric fuel pump for automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420081966 CN2751155Y (en) | 2004-08-19 | 2004-08-19 | Electric fuel pump for automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2751155Y true CN2751155Y (en) | 2006-01-11 |
Family
ID=35932331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420081966 Expired - Lifetime CN2751155Y (en) | 2004-08-19 | 2004-08-19 | Electric fuel pump for automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2751155Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102652225A (en) * | 2009-12-15 | 2012-08-29 | 本田技研工业株式会社 | Gear pump |
| CN103696981A (en) * | 2013-12-25 | 2014-04-02 | 绍兴协亨机械设备有限公司 | Spray pump device of automobile |
| CN106678077A (en) * | 2017-02-15 | 2017-05-17 | 深圳福世达动力科技有限公司 | Porous structure type light impeller |
-
2004
- 2004-08-19 CN CN 200420081966 patent/CN2751155Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102652225A (en) * | 2009-12-15 | 2012-08-29 | 本田技研工业株式会社 | Gear pump |
| CN102652225B (en) * | 2009-12-15 | 2014-12-17 | 本田技研工业株式会社 | Gear pump |
| CN103696981A (en) * | 2013-12-25 | 2014-04-02 | 绍兴协亨机械设备有限公司 | Spray pump device of automobile |
| CN106678077A (en) * | 2017-02-15 | 2017-05-17 | 深圳福世达动力科技有限公司 | Porous structure type light impeller |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140819 Granted publication date: 20060111 |