CN201715220U - Cycloid rotor lubricant pump - Google Patents
Cycloid rotor lubricant pump Download PDFInfo
- Publication number
- CN201715220U CN201715220U CN2010201969880U CN201020196988U CN201715220U CN 201715220 U CN201715220 U CN 201715220U CN 2010201969880 U CN2010201969880 U CN 2010201969880U CN 201020196988 U CN201020196988 U CN 201020196988U CN 201715220 U CN201715220 U CN 201715220U
- Authority
- CN
- China
- Prior art keywords
- cycloid rotor
- lubricant pump
- internal
- reflux hole
- return port
- 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 - Fee Related
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Abstract
The utility model relates to a cycloid rotor lubricant pump comprising a casing and an internal-meshing cycloid rotor, wherein the casing is provided with an internal reflux hole; one end of the internal reflux hole is connected with an oil outlet, and the other end thereof is connected with an oil inlet; and the internal reflux hole is further provided with a pressure adjustment valve, below which a spring for enabling the pressure adjustment valve to totally seal the internal reflux hole is arranged. With the arrangement of the internal-meshing cycloid rotor lubricant pump and the reflux hole, the cycloid rotor lubricant pump has the characteristics of small volume, low noise, stable oil outflow pressure, small drive bearing load and the like, and can be widely applied to structures of various oil pumps.
Description
Technical field
The utility model relates to a kind of cycloid rotor lubricating oil pump.
Background technique
The critical piece of automotive engine lubrication system--oil pump, the lubricant oil that will have certain pressure constantly is sent to friction surface in a steady stream, to reach lubricated, cooling, cleaning, effect such as antirust.Shortcomings such as at present automobile engine oil pump adopts outer gearing or interior engagement involute gear pump more, and these two kinds of structure oil pump volumes are big, and noise height, fuel-displaced pressure pulsation height, pressure transient, driving shaft bearing load are big.
Summary of the invention
The purpose of this utility model provides a kind of cycloid rotor lubricating oil pump, has characteristics such as volume is little, noise is low, fuel-displaced pressure stability, and active bearings load is little.
The technical solution of the utility model is: lubricating oil pump comprises housing, interior engagement cycloid rotor, has interior return port on the described housing, and an end of interior return port connects oil outlet, the other end with go into oilhole and be connected; Also be provided with pressure regulating valve on the return port in described, spring arranged under the described pressure regulating valve and make pressure regulating valve shut interior return port fully.
The utility model has adopted the cycloid rotor structure, when making rotor forward any angle to, total energy becomes the some contact mutually on the profile of tooth profile of inside and outside each tooth of rotor, therefore, certain aspect hydraulic coupling of driving gear almost all is delivered on the driven gear, and driven gear passes to housing with this power again and bears, so, very little bending moment is only born in the rotating shaft that drives driving gear, and transmitting torque makes rotor rotation.Therefore, the rotating shaft bending moment of bearing is than little many of gear pump.The design of this kind profile of tooth flank profil simultaneously increases the volume of between cog or reduces long much than the increase of the between cog volume of involute gear pump or cycle of reducing, make therefore that this pump volume is little, noise is low, pressure ratio steadily, pressure pulsation is little.Simultaneously, housing is provided with return port, the pressure regulating valve of sealing oil circuit under the spring action is arranged in the hole, when oil outlet pressure was excessive, the pressure of oil acted on the pressure regulating valve, and a lid is moved, open the oil circuit of shutting, the part high pressure oil is back to into the oilhole place, has reduced the pressure of oil outlet, keeps the stable of oil pressure.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in the figure, the utility model comprises housing 1, interior engagement cycloid rotor 2, it is characterized in that, return port 3 in having on the described housing 1, an end of interior return port 3 connects oil outlet 4, the other end with go into oilhole 5 and be connected; Also be provided with pressure regulating valve 6 on the return port in described, spring 7 arranged under the described pressure regulating valve and make pressure regulating valve shut interior return port 3 fully.
Claims (1)
1. cycloid rotor lubricating oil pump, it is characterized in that lubricating oil pump comprises housing (1), interior engagement cycloid rotor (2), has interior return port (3) on the described housing (1), one end of interior return port (3) connects oil outlet (4), the other end with go into oilhole (5) and be connected; Also be provided with pressure regulating valve (6) on the return port in described, spring (7) arranged under the described pressure regulating valve and make pressure regulating valve shut interior return port (3) fully.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201969880U CN201715220U (en) | 2010-05-20 | 2010-05-20 | Cycloid rotor lubricant pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201969880U CN201715220U (en) | 2010-05-20 | 2010-05-20 | Cycloid rotor lubricant pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201715220U true CN201715220U (en) | 2011-01-19 |
Family
ID=43461219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201969880U Expired - Fee Related CN201715220U (en) | 2010-05-20 | 2010-05-20 | Cycloid rotor lubricant pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201715220U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537630A (en) * | 2011-11-24 | 2012-07-04 | 王运生 | Variable displacement oil pump |
| CN102927428A (en) * | 2012-11-01 | 2013-02-13 | 上海幸福摩托车有限公司 | Internal variable-displacement rotor oil pump |
| CN103016940A (en) * | 2012-12-18 | 2013-04-03 | 中国人民解放军军事交通学院 | Vehicle energy-saving oil pump |
| CN107965657A (en) * | 2016-10-20 | 2018-04-27 | 瑞章精密工业股份有限公司 | Multistage variable oil pump |
-
2010
- 2010-05-20 CN CN2010201969880U patent/CN201715220U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537630A (en) * | 2011-11-24 | 2012-07-04 | 王运生 | Variable displacement oil pump |
| CN102927428A (en) * | 2012-11-01 | 2013-02-13 | 上海幸福摩托车有限公司 | Internal variable-displacement rotor oil pump |
| CN102927428B (en) * | 2012-11-01 | 2015-04-01 | 上海幸福摩托车有限公司 | Internal variable-displacement rotor oil pump |
| CN103016940A (en) * | 2012-12-18 | 2013-04-03 | 中国人民解放军军事交通学院 | Vehicle energy-saving oil pump |
| CN107965657A (en) * | 2016-10-20 | 2018-04-27 | 瑞章精密工业股份有限公司 | Multistage variable oil pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Harbin Dongan electromechanical Manufacturing Co., Ltd. Assignor: Harbin Dongan Engine (Group) Co., Ltd. Contract record no.: 2012230000699 Denomination of utility model: Cycloid rotor lubricant pump Granted publication date: 20110119 License type: Exclusive License Record date: 20120612 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20170520 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |