CN202546210U - Engine oil pump for engine of mini vehicle - Google Patents
Engine oil pump for engine of mini vehicle Download PDFInfo
- Publication number
- CN202546210U CN202546210U CN2012200878402U CN201220087840U CN202546210U CN 202546210 U CN202546210 U CN 202546210U CN 2012200878402 U CN2012200878402 U CN 2012200878402U CN 201220087840 U CN201220087840 U CN 201220087840U CN 202546210 U CN202546210 U CN 202546210U
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- pump
- oil
- rotor
- engine
- oil pump
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Abstract
The utility model discloses an engine oil pump for an engine of a mini vehicle. The engine oil pump is a cycloid rotor pump and comprises a pump shell forming a pump cavity and an inner rotor and an outer rotor which are positioned in the pump cavity and are matched with each other; the pump cavity is provided with an oil inlet and an oil outlet; and eccentricity exists in the direction which is perpendicular to the connection line between the oil inlet and the oil outlet and the direction which is parallel to the connection line between the oil inlet and the oil outlet between the inner rotor and the outer rotor. The parameters of the eccentricity between the inner rotor and the outer rotor are changed, the appearance structure and size are not changed, the specific eccentricity direction can be set, the structure parameters are optimized, the engine oil pump is suitable for flow directions, and oil inlet space is increased, so that the oil supply of the engine oil pump can be increased, and the flow is uniform; the engine oil pump is small in noise, and the oil absorption vacuum degree can be improved; and therefore, the efficiency can be improved, and the engine oil pump is suitable for the mini vehicle.
Description
Technical field
The utility model relates to a kind of engine accessory, particularly a kind of engine oil pump that is used for.
Background technique
The oil pump of motor car engine be profit change be in the power source of engine oil pressure and flow, its assurance 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.Cycloid rotor pump mainly is made up of parts such as internal rotor, external rotor and pump cases.Inner and outer rotors produces the secondary engagement in engagement process, form the several separate enclosed space automatically, the engagement rotation of internal rotor and external rotor; The volume in each space changes, and this volume-variation sucks liquid and discharges each space, along with the continuous rotation of inner and outer rotors; Liquid constantly sucks and discharges the pump housing; Just form the suction liquid effects of pump, cycloid rotor pump has higher efficient, comparatively generally is used in motor.
Existing cycloid rotor pump is not because the meshing parameter between the inner and outer rotors obtains better optimized; Has the shortcoming that relative efficiency is not high and noise is bigger; Simultaneously for the little car of little discharge capacity; Motor is when the moment of torsion output that the slow-speed of revolution is had relatively high expectations, and existing cycloid rotor pump fuel delivery is obviously not enough.
Therefore, need be optimized existing cycloid rotor pump structural parameter, not change under the prerequisite of its form structure in assurance, increase its fuel delivery and make flow even, noise is little, improves oil suction degree of vacuum, thereby raises the efficiency, and is applicable to minicar.
The model utility content
In view of this, the utility model provides a kind of minicar engine oil pump, does not change under the prerequisite of its form structure in assurance; Optimize its structural parameter, increase its fuel delivery and make flow even, noise is little; Improve oil suction degree of vacuum, thereby raise the efficiency, be applicable to minicar.
The minicar engine oil pump of the utility model; Oil pump is a cycloid rotor pump; Comprise the pump case that forms pump chamber and be positioned at internal rotor and the external rotor that pump chamber cooperatively interacts, between said internal rotor and the external rotor between perpendicular to filler opening and oil outlet on the direction of line and be parallel on the direction of line between filler opening and the oil outlet and all have offset.
Further, between said internal rotor and the external rotor between perpendicular to filler opening and oil outlet the offset on the direction of line be 2～3mm, the offset on the direction that is parallel to line between filler opening and the oil outlet is 0.3-0.4mm.
Further, the axial dimension of said internal rotor and external rotor is 8-9mm;
Further, said internal rotor is 9 teeth, and external rotor is 10 teeth.
The beneficial effect of the utility model: the minicar engine oil pump of the utility model, change the offset parameter between internal rotor and the external rotor, guarantee that contour structure size is constant; Set concrete eccentric orientation, optimize its structural parameter, be more suitable for moving towards in fluid; Increase the oil-feed space, thereby increase its fuel delivery and make flow even, noise is little; Improve oil suction degree of vacuum, thereby raise the efficiency, be applicable to minicar.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Fig. 1 is the structural representation of the utility model;
Fig. 2 is internal rotor and external rotor cooperating structure schematic representation.
Embodiment
Fig. 1 is the structural representation of the utility model; Fig. 2 is internal rotor and external rotor cooperating structure schematic representation, and is as shown in the figure: the minicar engine oil pump of present embodiment, oil pump are cycloid rotor pump; Comprise the pump case 1 that forms pump chamber 11 and be positioned at internal rotor 2 and the external rotor 3 that pump chamber 11 cooperatively interacts; Said pump chamber 11 is provided with filler opening and oil outlet, and between perpendicular to filler opening and oil outlet on the direction of line and be parallel on the direction of line between filler opening and the oil outlet and all have offset, filler opening and oil outlet are formed at pump chamber 11 between said internal rotor 2 and the external rotor 3; Book and existing technology repeat no more at this.
In the present embodiment, between said internal rotor 2 and the external rotor 3 between perpendicular to filler opening and oil outlet the offset a on the direction of line be 2～3mm, the common mounting type according to oil pump promptly is meant vertical direction, present embodiment adopts 2.5mm; Offset b on the direction that is parallel to line between filler opening and the oil outlet is 0.3-0.4mm, and the common mounting type according to oil pump promptly is meant substantially horizontal, and present embodiment adopts 0.4mm; As shown in Figure 2, the eccentric setting between internal rotor 2 centers 5 and external rotor 3 centers 4, these structural parameter are applicable to that further minicar uses, and have effect preferably, more are applicable to the operating mode of low speed and large torque.
In the present embodiment, the axial dimension of said internal rotor 2 and external rotor 3 is 8-9mm; Present embodiment adopts 9 millimeters.
In the present embodiment, said internal rotor 2 is 9 teeth, and external rotor 3 is 10 teeth.
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 the utility model technological scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (4)
1. minicar engine oil pump; Oil pump is a cycloid rotor pump; Comprise the pump case that forms pump chamber and be positioned at internal rotor and the external rotor that pump chamber cooperatively interacts; Said pump chamber is provided with filler opening and oil outlet, it is characterized in that: between said internal rotor and the external rotor between perpendicular to filler opening and oil outlet on the direction of line and be parallel on the direction of line between filler opening and the oil outlet and all have offset.
2. minicar engine oil pump according to claim 1; It is characterized in that: between said internal rotor and the external rotor between perpendicular to filler opening and oil outlet the offset on the direction of line be 2～3mm, the offset on the direction that is parallel to line between filler opening and the oil outlet is 0.3-0.4mm.
3. minicar engine oil pump according to claim 2 is characterized in that: the axial dimension of said internal rotor and external rotor is 8-9mm.
4. minicar engine oil pump according to claim 3 is characterized in that: said internal rotor is 9 teeth, and external rotor is 10 teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200878402U CN202546210U (en) | 2012-03-09 | 2012-03-09 | Engine oil pump for engine of mini vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200878402U CN202546210U (en) | 2012-03-09 | 2012-03-09 | Engine oil pump for engine of mini vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202546210U true CN202546210U (en) | 2012-11-21 |
Family
ID=47166847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200878402U Expired - Fee Related CN202546210U (en) | 2012-03-09 | 2012-03-09 | Engine oil pump for engine of mini vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202546210U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728585A (en) * | 2014-12-10 | 2015-06-24 | 马勒技术投资(中国）有限公司 | High-efficiency variable-displacement oil pump reducing periodical loads of liquid |
-
2012
- 2012-03-09 CN CN2012200878402U patent/CN202546210U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728585A (en) * | 2014-12-10 | 2015-06-24 | 马勒技术投资(中国）有限公司 | High-efficiency variable-displacement oil pump reducing periodical loads of liquid |
| CN104728585B (en) * | 2014-12-10 | 2017-04-19 | 马勒技术投资(中国）有限公司 | High-efficiency variable-displacement oil pump reducing periodical loads of liquid |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20160309 |