CN201582106U - Rotor-type lubricant pump capable of preventing shoulder from leaking - Google Patents
Rotor-type lubricant pump capable of preventing shoulder from leaking Download PDFInfo
- Publication number
- CN201582106U CN201582106U CN2009202595410U CN200920259541U CN201582106U CN 201582106 U CN201582106 U CN 201582106U CN 2009202595410 U CN2009202595410 U CN 2009202595410U CN 200920259541 U CN200920259541 U CN 200920259541U CN 201582106 U CN201582106 U CN 201582106U
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- pump
- rotor
- shaft
- internal rotor
- oil
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- Expired - Fee Related
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Abstract
The utility model provides a rotor-type lubricant pump capable of preventing shoulder from leaking, comprising a pump cover, a pump shaft, an external rotor, an internal rotor, a pump body and a transmission gear; and the pump cover is provided with an oil inlet chamber and an oil outlet chamber. The pump shaft is arranged in the shaft hole of the pump cover and the pump body; the external end of the pump shaft is connected with the transmission gear; and the pump shaft is connected with the transmission gear by interference fit. The external rotor is arranged in the cavity of the pump body; the cavity of the external rotor is internally provided with the internal rotor; the internal rotor is arranged on the pump shaft; and the shaft hole of the internal rotor is connected with the pump shaft by interference fit. The pump cover and the pump body are connected with each other by a thread and are arranged at the front end of an engine body, thus playing the isolating and supporting functions. In order to prevent the shoulder of the rotor-type lubricant pump from leaking, a raised semi-round anti-leaking sealing area is added on the oil outlet chamber of the pump cover and just blocks the clearance K1 formed when the top round of the internal rotor is cross to the external rotor so as to stop the pressure oil from leaking back, thereby improving the working efficiency of the lubricant pump.
Description
Technical field
The utility model relates to a kind of rotor-type oil pump, particularly a kind of rotor-type oil pump that prevents that flank from leaking.
Background technique
Structure such as Fig. 1, Fig. 2 and shown in Figure 3 of existing rotor-type oil pump, it comprises pump cover 1, pump shaft 2, external rotor 3, internal rotor 4, the pump housing 5 and driving gear 6.On pump cover 1, be provided with oil suction chamber 1-2 and go out oil pocket 1-1.Pump shaft 2 is installed in the axis hole of the pump cover 1 and the pump housing 5, and the outer end is connected with driving gear 6, and pump shaft 2 and driving gear 6 adopt interference fit.External rotor 3 is installed in the die cavity of the pump housing 5, and internal rotor 4 is installed in the die cavity of external rotor 3, and internal rotor 4 is installed on the pump shaft 2, and the axis hole of internal rotor 4 and pump shaft 2 adopt interference fit.Pump cover 1 and the pump housing 5 play and isolate and supporting role by being installed in the motor front fuselage after being threaded.
The problem that existing rotor-type oil pump exists a flank to leak, when external rotor 3 in being installed in the pump housing 5 die cavities and internal rotor 4 rotate mutually, oil suction chamber 1-2 and the tip circle that goes out the inboard internal rotor 4 of oil pocket 1-1 and the intersection of external rotor 3 on pump cover 1, form slit K1 of two places and K2, the pressure oil that can use oil pocket 1-2 is like this let out from slit K1 and is got back to oil suction chamber 1-2, causes the loss of flow and the waste of power.
Summary of the invention
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art and a kind of rotor-type oil pump that prevents that flank from leaking is provided, and to reduce the loss of the inner oil transportation of lubricant oil, improves the efficient of rotor-type oil pump pump oil.
The technical solution of the utility model is: a kind of rotor-type oil pump of flank anti-leak, it comprises pump cover, pump shaft, external rotor, internal rotor, the pump housing and driving gear.On pump cover, be provided with oil suction chamber and go out oil pocket.Pump shaft is installed in the axis hole of the pump cover and the pump housing, and the outer end is connected with driving gear, and pump shaft and driving gear adopt interference fit.External rotor is installed in the die cavity of the pump housing, in the die cavity of external rotor internal rotor is installed, and internal rotor is installed on the pump shaft, and the axis hole of internal rotor and pump shaft adopt interference fit.Pump cover and the pump housing play and isolate and supporting role by being installed in the motor front fuselage after being threaded.
In order to prevent that the rotor-type oil pump flank from leaking, set up the semi-circular anti-leakage seal district of protruding on the oil pocket in going out of pump cover, semi-circular anti-leakage seal district just in time keeps off the K1 place, slit that forms when the tip circle of internal rotor and external rotor intersect, in order to stop returning of pressure oil to be let out, further improved the working efficiency of oil pump.
The utility model compared with prior art has following characteristics:
The utility model mainly is to have set up the semi-circular anti-leakage seal district of protruding on the oil pocket in going out of pump cover 1, semi-circular anti-leakage seal district just in time keeps off the K1 place, slit that forms when the tip circle of internal rotor and external rotor intersect, let out in order to stop returning of pressure oil, reduced the loss that lubricant oil flows backwards in pump chamber, improved the oil transportation efficient and the fuel delivery of oil pump, lubricity, Security and the reliability of motor are further enhanced.
Below in conjunction with the drawings and specific embodiments detailed structure of the present utility model is further described.
Description of drawings
Accompanying drawing 1 is existing rotor-type oil pump structural representation;
Accompanying drawing 2 is the left view of accompanying drawing 1;
Accompanying drawing 3 is existing rotor-type oil pump pump cover structural representation;
The pump cover structural representation that accompanying drawing 4 provides for the utility model;
The rotor-type oil pump structural representation that accompanying drawing 5 provides for the utility model;
Accompanying drawing 6 is the left view of accompanying drawing 5.
Embodiment
As shown in drawings: a kind of rotor-type oil pump of flank anti-leak, it comprises pump cover 1, pump shaft 2, external rotor 3, internal rotor 4, the pump housing 5 and driving gear 6.On pump cover 1, be provided with oil suction chamber 1-2 and go out oil pocket 1-1.Pump shaft 2 is installed in the axis hole of the pump cover 1 and the pump housing 5, and the outer end is connected with driving gear 6, and pump shaft 2 and driving gear 6 adopt interference fit.External rotor 3 is installed in the die cavity of the pump housing 5, and internal rotor 4 is installed in the die cavity of external rotor 3, and internal rotor 4 is installed on the pump shaft 2, and the axis hole of internal rotor 4 and pump shaft 2 adopt interference fit.Pump cover 1 and the pump housing 5 play and isolate and supporting role by being installed in the motor front fuselage after being threaded.
In order to prevent that the rotor-type oil pump flank from leaking, set up the semi-circular anti-leakage seal district 1-3 that protrudes on the oil pocket 1-1 in going out of pump cover 1, semi-circular anti-leakage seal district 1-3 just in time keeps off the K1 place, slit that forms when the tip circle of internal rotor 4 and external rotor 3 intersects, in order to stop returning of pressure oil to be let out, further improved the working efficiency of oil pump.
Claims (1)
1. the rotor-type oil pump of a flank anti-leak, it comprises pump cover, pump shaft, external rotor, internal rotor, the pump housing and driving gear; Be provided with oil suction chamber and go out oil pocket on pump cover, pump shaft is installed in the axis hole of the pump cover and the pump housing, and the outer end is connected with driving gear, and pump shaft and driving gear adopt interference fit; External rotor is installed in the die cavity of the pump housing, in the die cavity of external rotor internal rotor is installed, and internal rotor is installed on the pump shaft, and the axis hole of internal rotor and pump shaft adopt interference fit; Pump cover and the pump housing are by being installed in the motor front fuselage after being threaded, play and isolate and supporting role, it is characterized in that: leak in order to prevent the rotor-type oil pump flank, set up the semi-circular anti-leakage seal district of protruding on the oil pocket in going out of pump cover, semi-circular anti-leakage seal district just in time keeps off the K1 place, slit that forms when the tip circle of internal rotor and external rotor intersect, in order to stop time letting out of pressure oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202595410U CN201582106U (en) | 2009-11-26 | 2009-11-26 | Rotor-type lubricant pump capable of preventing shoulder from leaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202595410U CN201582106U (en) | 2009-11-26 | 2009-11-26 | Rotor-type lubricant pump capable of preventing shoulder from leaking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201582106U true CN201582106U (en) | 2010-09-15 |
Family
ID=42724104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202595410U Expired - Fee Related CN201582106U (en) | 2009-11-26 | 2009-11-26 | Rotor-type lubricant pump capable of preventing shoulder from leaking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201582106U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482386A (en) * | 2014-12-17 | 2015-04-01 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Engine oil pump |
| CN109827060A (en) * | 2019-04-08 | 2019-05-31 | 湖南机油泵股份有限公司 | A kind of rotor-type oil pump pump housing |
| CN109854931A (en) * | 2019-04-08 | 2019-06-07 | 湖南机油泵股份有限公司 | A kind of rotor-type oil pump that can improve volumetric efficiency |
| CN109854932A (en) * | 2019-04-08 | 2019-06-07 | 湖南机油泵股份有限公司 | A kind of rotor-type oil pump pump cover |
-
2009
- 2009-11-26 CN CN2009202595410U patent/CN201582106U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482386A (en) * | 2014-12-17 | 2015-04-01 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Engine oil pump |
| CN109827060A (en) * | 2019-04-08 | 2019-05-31 | 湖南机油泵股份有限公司 | A kind of rotor-type oil pump pump housing |
| CN109854931A (en) * | 2019-04-08 | 2019-06-07 | 湖南机油泵股份有限公司 | A kind of rotor-type oil pump that can improve volumetric efficiency |
| CN109854932A (en) * | 2019-04-08 | 2019-06-07 | 湖南机油泵股份有限公司 | A kind of rotor-type oil pump pump cover |
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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: 20100915 Termination date: 20171126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |