CN201090432Y - Rotor oil pump - Google Patents
Rotor oil pump Download PDFInfo
- Publication number
- CN201090432Y CN201090432Y CNU2007200645806U CN200720064580U CN201090432Y CN 201090432 Y CN201090432 Y CN 201090432Y CN U2007200645806 U CNU2007200645806 U CN U2007200645806U CN 200720064580 U CN200720064580 U CN 200720064580U CN 201090432 Y CN201090432 Y CN 201090432Y
- Authority
- CN
- China
- Prior art keywords
- rotor
- pump
- oil
- cover
- pump housing
- 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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- Rotary Pumps (AREA)
Abstract
The utility model relates to a rotor type oil pump, which is composed of a pump body, a pump cover, an inner rotor, an outer rotor, a framework oil seal, and a sealing ring, wherein a plurality of oil flutes are casted on one joint face of the pump body and the pump cover, the inner and outer rotors are meshed each other and are an eccentric structure, the inner and outer rotors are embedded in the rotor cavity of the pump body, a rotor driving shaft at front end of shift fork of torque converter, a Babbitt sleeve is added in the inner holes of the inner rotor and the spline shaft. The utility model has the advantages of simple and compact structure, small size, large pressure, smooth running, low noise, long service life and wide application range.
Description
Technical field
The utility model relates to a kind of car with the special-purpose oil pump of automatic transmission, belongs to technical field of hydraulic.
Background technique
More and more become the development trend of automobile along with automatic transmission, its control mode and traditional gear transmission are essentially different, needing the complete reliable hydraulic system of a cover is its service, consider from power character and Economy composite factor, oil pump does not need too many flow again under the prerequisite of the big pressure of needs, therefore the efficient to oil pump has proposed strict requirement.
Summary of the invention
Technical problem to be solved in the utility model is: solve the problem that above-mentioned prior art exists, and provide a kind of simple and compact for structure, volume is little, working pressure is big, running is steady, dry low, the life-span is grown, driving mode realizes easily, widely used rotor oil pump.
The technical solution adopted in the utility model is: this rotor oil pump is made up of the pump housing, pump cover, internal rotor, external rotor, outside framework oil seal, seal ring, the rotor oil pump case is combined by the pump housing, pump cover two halves, the one side that the pump housing, pump cover combine is cast with many oil grooves, inside and outside rotor is meshing with each other and is eccentric structure, inside and outside rotor is nested in the rotor chamber of the pump housing, torque-converters shift fork front end rotor drive shaft.Insert the groove of internal rotor correspondence, connect the transmission internal rotor.
In the technique scheme, set up the Babbitt cover and provide lubricated at internal rotor and splined shaft endoporus.
In the technique scheme, the splined shaft and the pump housing are made integral body.
The utility model drives external rotor by driving the internal rotor rotation, and suction pumping cavity volume is changed, and externally exports high pressure oil and uses for each parts work of automatic speed variator hydraulic system.This rotor oil pump structure is simply compact, and volume is little, and working pressure is big, and running is steady, and noise is low, and the life-span is long, and driving mode realizes easily, can be widely used in various car CVT (continuously variable transmission) or automatic transmission.
Description of drawings
Fig. 1 is the utility model section of structure
Fig. 2 is a pump housing junction plane planimetric map
Fig. 3 is a pump cover junction plane planimetric map
Fig. 4 is inside and outside rotor mounting structure figure
Fig. 5 is the utility model drive mechanism figure
Fig. 6 is the utility model fundamental diagram
Embodiment
Referring to accompanying drawing, the utility model is made up of the pump housing 1, pump cover 2, internal rotor 3, external rotor 4, outside framework oil seal 5, seal ring 6, the rotor oil pump case is combined by the pump housing 1, pump cover 2 two halves, the one side that the pump housing 1, pump cover 2 combine is cast with many oil grooves 7, the identical mutually required pressure oil duct of conducting that is used for, can make pump and speed changer become organic whole like this, structure is very compact.Internal rotor 3 is meshing with each other with external rotor 4 and is eccentric structure, and inside and outside rotor is nested in the rotor chamber of the pump housing 1, and fluid torque converter 8 shift fork front end rotor drive shafts 9 insert the groove of internal rotor correspondence, connect transmission internal rotor 3.An engine power part is passed to oil pump, and pump speed and motor are consistent.In the process of rotor rotation, the eccentric structure of inner and outer rotors makes it form the oil pocket of a variable volume, produce the function of oil suction and pressure oil along with the variation of oil chamber volume, make the oil suction in the process that volume increases of this oil pocket at the suitable oil groove of rotor chamber end face folding, in the process that volume diminishes, press oil.
Because oil pump internal rotor 3 and splined shaft 10 endoporus have relative high speed rotating, so the utility model is also set up Babbitt cover 11 and provided lubricated, can effectively reduce friction, guarantee oil pump and speed changer proper functioning.Splined shaft 10 is made integral body with the pump housing 1, for transmission input shaft provides support, the torque-converters guide wheel is fixed by flower keyboard, also can provide convenience for the layout of oil duct.The interior engagement cycloid rotor that powder metallurgy is made is wear-resisting, precision good, volumetric efficiency is high, and steady when high speed rotating, and noise is low.12 is suction passage among Fig. 5, and 13 is pump oil passage.
Claims (3)
1. rotor oil pump, it is characterized in that forming by the pump housing, pump cover, internal rotor, external rotor, outside framework oil seal, seal ring, the rotor oil pump case is combined by the pump housing, pump cover two halves, the one side that the pump housing, pump cover combine is cast with many oil grooves, inside and outside rotor is meshing with each other and is eccentric structure, inside and outside rotor is nested in the rotor chamber of the pump housing, torque-converters shift fork front end rotor drive shaft.Insert the groove of internal rotor correspondence, connect the transmission internal rotor.
2. rotor oil pump according to claim 1 is characterized in that setting up the Babbitt cover and providing lubricated at internal rotor and splined shaft endoporus.
3. rotor oil pump according to claim 1 is characterized in that the splined shaft and the pump housing make integral body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200645806U CN201090432Y (en) | 2007-09-26 | 2007-09-26 | Rotor oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200645806U CN201090432Y (en) | 2007-09-26 | 2007-09-26 | Rotor oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201090432Y true CN201090432Y (en) | 2008-07-23 |
Family
ID=39862193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200645806U Expired - Lifetime CN201090432Y (en) | 2007-09-26 | 2007-09-26 | Rotor oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201090432Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575376A (en) * | 2017-10-25 | 2018-01-12 | 哈尔滨东安汽车发动机制造有限公司 | A kind of oil pump for automatic transmission of automobile |
-
2007
- 2007-09-26 CN CNU2007200645806U patent/CN201090432Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575376A (en) * | 2017-10-25 | 2018-01-12 | 哈尔滨东安汽车发动机制造有限公司 | A kind of oil pump for automatic transmission of automobile |
| CN107575376B (en) * | 2017-10-25 | 2024-03-22 | 哈尔滨东安汽车发动机制造有限公司 | Automatic transmission oil pump for vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: No. 888, azalea Road, Changsha, Hunan, Yuelu District: 410205 Patentee after: Hunan Jianglu & Rongda Vehicle Transmission Limited Company Address before: No. 8, Lu Jing Road, Yuelu District, Hunan, Changsha: 410205 Patentee before: Hunan Jianglu & Rongda Vehicle Transmission Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: HUNAN JIANGLURONG VEHICLE DRIVE CO., LTD. Free format text: FORMER NAME: HUNAN JIANGLU-RONGDA VEHICLE TRANSMISSION LIMITED COMPANY |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080723 |
|
| CX01 | Expiry of patent term |