CN202419100U - 1.2 L and under engine oil pump - Google Patents
1.2 L and under engine oil pump Download PDFInfo
- Publication number
- CN202419100U CN202419100U CN 201120548748 CN201120548748U CN202419100U CN 202419100 U CN202419100 U CN 202419100U CN 201120548748 CN201120548748 CN 201120548748 CN 201120548748 U CN201120548748 U CN 201120548748U CN 202419100 U CN202419100 U CN 202419100U
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- China
- Prior art keywords
- oil pump
- rotor
- engine oil
- oil
- internal rotor
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- Expired - Fee Related
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Abstract
The utility model relates to the technical field of engine oil pumps, and particularly relates to a 1.2 L and under engine oil pump, which includes an oil inlet, an oil outlet, an oil pump casing, a pump cover of the oil pump, an inner rotor and an outer rotor, wherein the inner rotor is arranged in the outer rotor and is in transmission connection with a camshaft timing sprocket, the inner rotor and the outer rotor form an eccentric structure, and the axis of the inner rotor and the axis of the outer rotor have a horizontal eccentricity of 2.5-3 mm and a vertical eccentricity of 1-1.5 mm. The rotor oil pump is compact in structure; and through reasonably arranging the eccentricities of the inner rotor and the outer rotor, the oil supply amount and the oil pressure are improved, so that the oil supply is even, the noise is low, and the oil suction vacuum degree is high.
Description
Technical field
The utility model relates to the engine oil pump technical field, relates in particular to the rotor motor oil pump.
Background technique
The oil pump of motor car engine is the power source of engine oil pressure and flow in the lubricating system, and its guarantees the needed engine oil pressure of engine lubrication and flow.Mode of structure by oil pump has gear type, rotator type, blade type and plunger type.Rotor-type oil pump comprises filler opening, oil outlet, oil pump case, engine oil pump cover, internal rotor and external rotor, because advantages such as compact structure are widely used on the middle-size and small-size motor.And the existing common fuel delivery of rotor-type oil pump is big inadequately, and noise is big, and filler opening and oil outlet sealing are not good.
The model utility content
In view of this, the purpose of the utility model provides a kind of 1.2L and following engine oil pump, and its oil mass is bigger, and noise is less.
The purpose of the utility model realizes through following technological scheme: 1.2L and following engine oil pump; Comprise filler opening, oil outlet, oil pump case, engine oil pump cover, internal rotor and external rotor; Said internal rotor is arranged in the external rotor, and is in transmission connection with crankshaft timing sprocket, and said internal rotor and external rotor are eccentric structure; The horizontal offset in internal rotor axle center and external rotor axle center is 2.5～3mm, and vertically offset is 1～1.5mm.
Further, the profile of said internal rotor and external rotor working surface is a pair of conjugate curve.
Further, said filler opening and oil outlet are through the seal ring sealing.
Further, the thickness of said internal rotor and external rotor is 9～10mm.
Further, said oil pump housing at least a portion is fixedly set at engine cylinder and covers, and at least a portion is fixedly set on the crankcase assembly.
Further, said internal rotor is 7 teeth, and external rotor is 8 teeth.
1.2L of the utility model and following engine oil pump, the utility model rotor engine oil pump compact structure improves fuel delivery and oil pressure through the offset of inside and outside rotor rationally is set, and makes fuel feeding even, and noise is little, and oil suction degree of vacuum is high.In further technological scheme, the profile of internal rotor and external rotor working surface is a pair of conjugate curve, neither interferes also when therefore inside and outside rotor is meshing with each other not break away from; Filler opening and oil outlet have guaranteed the sealing and the reliability of engine oil passage through the seal ring sealing.
Other advantages, target and the characteristic of the utility model will be set forth in specification subsequently to a certain extent; And to a certain extent; Based on being conspicuous to those skilled in the art, perhaps can from the practice of the utility model, obtain instruction to investigating of hereinafter.The target of the utility model and other advantages can realize and obtain through following specification and claims.
Description of drawings
Fig. 1 shows the structural representation of 1.2L and following engine oil pump;
Fig. 2 shows 1.2L and following engine oil pump rigging position schematic representation;
Fig. 3 shows 1.2L and the inside and outside rotor axis position view of following engine oil pump;
Fig. 4 shows the inner rotor core schematic representation;
Fig. 5 shows the side view of Fig. 5;
Fig. 6 shows the outer-rotor structure schematic representation;
Fig. 7 shows the side view of Fig. 6.
Embodiment
Below will carry out detailed description to the preferred embodiment of the utility model.Should be appreciated that preferred embodiment has been merely explanation the utility model, rather than in order to limit the protection domain of the utility model.
Referring to Fig. 1-7,1.2L and following engine oil pump comprise oil pump case 1, engine oil pump cover 2, filler opening, oil outlet, internal rotor 3 and external rotor 4; Said oil pump housing 1 at least a portion is fixedly set on engine cylinder cover 5; At least a portion is fixedly set on the crankcase assembly 6, and said internal rotor 3 is arranged in the external rotor 4, and is in transmission connection with crankshaft timing sprocket 7; Said internal rotor 3 is an eccentric structure with external rotor 4; The horizontal offset in internal rotor 3 axle center and external rotor 4 axle center is 2.5～3mm, and vertically offset is 1～1.5mm, and the thickness of said internal rotor 3 and external rotor 4 is 9～10mm.Said internal rotor is 7 teeth, and external rotor is 8 teeth.
The profile of said internal rotor 3 and external rotor 4 working surfaces is a pair of conjugate curve, neither interferes also when therefore inside and outside rotor is meshing with each other not break away from; Filler opening and oil outlet have guaranteed the sealing and the reliability of engine oil passage through the seal ring sealing.
Internal rotor 3 is driven by crankshaft timing sprocket 7, and internal rotor 3 drives external rotor 4 and rotates, and when a certain active chamber turned over filler opening, volume increased, and produced vacuum, and machine oil is in filler opening is inhaled into active chamber.When active chamber turned over oil outlet, volume reduced, and oil pressure raises, and lubricant oil is forced out through oil outlet.
Explanation is at last; Above embodiment is only unrestricted in order to the technological scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technological scheme of the utility model; And not breaking away from the aim and the scope of present technique scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (6)
1.2L and following engine oil pump; Comprise oil pump case (1), engine oil pump cover (2), filler opening, oil outlet, internal rotor (3) and external rotor (4); Said internal rotor (3) is arranged in the external rotor (4), and is in transmission connection with crankshaft timing sprocket (7), it is characterized in that: said internal rotor (3) and external rotor (4) are eccentric structure; The horizontal offset in internal rotor (3) axle center and external rotor (4) axle center is 2.5～3mm, and vertically offset is 1～1.5mm.
2. 1.2L according to claim 1 and following engine oil pump is characterized in that: the profile of said internal rotor (3) and external rotor (4) working surface is a pair of conjugate curve.
3. 1.2L according to claim 1 and following engine oil pump is characterized in that: said filler opening and oil outlet are through the seal ring sealing.
4. according to each described 1.2L and following engine oil pump in the claim 1 to 3, it is characterized in that: the thickness of said internal rotor (3) and external rotor (4) is 9～10mm.
5. 1.2L according to claim 4 and following engine oil pump is characterized in that: said oil pump housing at least a portion is fixedly set on engine cylinder cover (5), and at least a portion is fixedly set on the crankcase assembly (6).
6. 1.2L according to claim 5 and following engine oil pump is characterized in that: said internal rotor is 7 teeth, and external rotor is 8 teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120548748 CN202419100U (en) | 2011-12-23 | 2011-12-23 | 1.2 L and under engine oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120548748 CN202419100U (en) | 2011-12-23 | 2011-12-23 | 1.2 L and under engine oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202419100U true CN202419100U (en) | 2012-09-05 |
Family
ID=46743863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120548748 Expired - Fee Related CN202419100U (en) | 2011-12-23 | 2011-12-23 | 1.2 L and under engine oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202419100U (en) |
-
2011
- 2011-12-23 CN CN 201120548748 patent/CN202419100U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20201223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |