CN102953980A - Oil pump assembly - Google Patents
Oil pump assembly Download PDFInfo
- Publication number
- CN102953980A CN102953980A CN2012104775895A CN201210477589A CN102953980A CN 102953980 A CN102953980 A CN 102953980A CN 2012104775895 A CN2012104775895 A CN 2012104775895A CN 201210477589 A CN201210477589 A CN 201210477589A CN 102953980 A CN102953980 A CN 102953980A
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- China
- Prior art keywords
- rotor
- rotors
- oil pump
- teeth
- internal rotor
- 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.)
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Abstract
The invention discloses an oil pump assembly comprising a pump body, a pump cover, an internal rotor and an external rotor, wherein the pump cover and the pump body are hermetically connected through a bolt; the internal rotor and the external rotor are arranged in the pump body and both have an eccentric distance; the tooth number of the internal rotor is 5-6 and that of the external rotor is 7-8; the two rotors are manufactured by using a material of high manganese steel containing 0.8-1.3% of carbon. The oil pump assembly disclosed by the invention adopts the internal rotor and the external rotor as a transmission mechanism to increase the oil quantity, wherein the internal rotor and the external rotor are differential in two teeth; at the same time the manufacturing material of two rotors adopts the material of high manganese steel, wherein the carbon content is higher, thereby improving hardness and abrasion resistance and prolonging useful life of the rotors.
Description
Technical field
The present invention is a kind of oil pump assy.
Background technique
Gear oil pump is to nibble mutually with two gears to rotate work, and less demanding to medium, general pressure is below 6MPa, and flow is larger.Because existing oil pump application requirements is more and more higher, and the Main Means that increases at present the oil pump feed amount is to increase rotor thickness, and such structure causes the oil pump rotating shaft support to reduce, and causes the oil pump serious wear.Existing fuel oil pump assembly is often little because of fuel pump internal rotor and external rotor gap simultaneously, and fuel delivery is little, causes being difficult to adapt to existing demand.
Summary of the invention
The purpose of this invention is to provide a kind of oil pump assy, solve the problem of existing oil pump assy serious wear.
Purpose of the present invention is come specific implementation by the following technical programs: a kind of oil pump assy, comprise the pump housing, pump cover, internal rotor and external rotor, pump cover is connected through bolt seal with the pump housing, internal rotor and external rotor are located in the pump housing, and two rotors have throw of eccentric, the number of teeth of internal rotor is the n tooth, and outer teeth is the n+1 tooth, and wherein n is 5-6; The high manganese steel material of the employing carbon containing 0.8-1.3% of two rotors is made.
Further, number of inner teeth is 6 teeth, and outer teeth is 7 teeth.
Further, carbon containing is 1.0-1.2% in the making material of two rotors.
Oil pump assy of the present invention adopts the internal rotor that differs two teeth and external rotor as driving mechanism, has improved oil mass; The making material of two rotors adopts high manganese steel material simultaneously, and wherein carbon content is higher, has improved hardness and wear resistance, has prolonged the working life of rotor.
Figure of description
The below is described in further detail the present invention with embodiment with reference to the accompanying drawings.
Fig. 1 is the structural representation of the described oil pump assy of the embodiment of the invention.
Embodiment
The below adopts specific embodiment to describe the present invention by reference to the accompanying drawings:
A kind of oil pump assy as shown in Figure 1, comprise the pump housing 1, pump cover 4, internal rotor 2 and external rotor 3, pump cover 4 and the pump housing 1 are connected through bolt seal, internal rotor 2 and external rotor 3 are located in the pump housing 1, and two rotors have throw of eccentric, and the number of teeth of internal rotor is the n tooth, outer teeth is the n+1 tooth, and wherein n is 5-6; The high manganese steel material of the employing carbon containing 0.8-1.3% of two rotors is made.
Preferably, the number of teeth of two rotors is made as, internal rotor is 6 teeth, and external rotor is 7 teeth; Carbon content is 1.0-1.2% in the making material of two rotors.Adopt such rotor, test than conventional rotors and prolonged 20% working life.
Claims (3)
1. an oil pump assy comprises the pump housing, pump cover, internal rotor and external rotor, and pump cover is connected through bolt seal with the pump housing, internal rotor and external rotor are located in the pump housing, and two rotors have throw of eccentric, and it is characterized in that: the number of teeth of internal rotor is the n tooth, outer teeth is the n+1 tooth, and wherein n is 5-6; The high manganese steel material of the employing carbon containing 0.8-1.3% of two rotors is made.
2. oil pump assy as claimed in claim 1, it is characterized in that: number of inner teeth is 6 teeth, outer teeth is 7 teeth.
3. oil pump assy as claimed in claim 1, it is characterized in that: carbon containing is 1.0-1.2% in the making material of two rotors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104775895A CN102953980A (en) | 2012-11-22 | 2012-11-22 | Oil pump assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104775895A CN102953980A (en) | 2012-11-22 | 2012-11-22 | Oil pump assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102953980A true CN102953980A (en) | 2013-03-06 |
Family
ID=47763231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104775895A Pending CN102953980A (en) | 2012-11-22 | 2012-11-22 | Oil pump assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102953980A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2270152Y (en) * | 1996-11-21 | 1997-12-10 | 郎维环 | Small cycloidal lubricating oil pump |
| CN2526542Y (en) * | 2001-12-25 | 2002-12-18 | 李文举 | Inductive machine oil pump |
| CN2607457Y (en) * | 2003-02-08 | 2004-03-24 | 自贡市川力实业有限公司 | Engine oil pump for motorcycle engine |
| CN1631583A (en) * | 2004-12-24 | 2005-06-29 | 上海汽车股份有限公司 | Powder metallurgy manufacturing method of inside and outside rotor in oil pump |
| CN1924059A (en) * | 2006-09-05 | 2007-03-07 | 杜雨默 | Modified high manganese steel |
| WO2007034888A1 (en) * | 2005-09-22 | 2007-03-29 | Aisin Seiki Kabushiki Kaisha | Oil pump rotor |
| CN2929257Y (en) * | 2006-07-25 | 2007-08-01 | 南京创新机油泵制造有限公司 | Internal cycloidal rotor type machine oil pump |
| CN201507444U (en) * | 2009-05-12 | 2010-06-16 | 江门天钇金属工业有限公司 | Oil pump for double-clutch motorcycle engine |
| CN201606644U (en) * | 2009-11-18 | 2010-10-13 | 淳安德盛机械制造有限公司 | Oil pump assembly |
| CN101892427A (en) * | 2010-06-21 | 2010-11-24 | 桃江县正茂福利铸造有限公司 | High manganese steel and manufacturing method |
| US20110182749A1 (en) * | 2008-09-25 | 2011-07-28 | Borgwarner Inc. | Turbocharger and adjustable blade therefor |
-
2012
- 2012-11-22 CN CN2012104775895A patent/CN102953980A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2270152Y (en) * | 1996-11-21 | 1997-12-10 | 郎维环 | Small cycloidal lubricating oil pump |
| CN2526542Y (en) * | 2001-12-25 | 2002-12-18 | 李文举 | Inductive machine oil pump |
| CN2607457Y (en) * | 2003-02-08 | 2004-03-24 | 自贡市川力实业有限公司 | Engine oil pump for motorcycle engine |
| CN1631583A (en) * | 2004-12-24 | 2005-06-29 | 上海汽车股份有限公司 | Powder metallurgy manufacturing method of inside and outside rotor in oil pump |
| WO2007034888A1 (en) * | 2005-09-22 | 2007-03-29 | Aisin Seiki Kabushiki Kaisha | Oil pump rotor |
| CN2929257Y (en) * | 2006-07-25 | 2007-08-01 | 南京创新机油泵制造有限公司 | Internal cycloidal rotor type machine oil pump |
| CN1924059A (en) * | 2006-09-05 | 2007-03-07 | 杜雨默 | Modified high manganese steel |
| US20110182749A1 (en) * | 2008-09-25 | 2011-07-28 | Borgwarner Inc. | Turbocharger and adjustable blade therefor |
| CN201507444U (en) * | 2009-05-12 | 2010-06-16 | 江门天钇金属工业有限公司 | Oil pump for double-clutch motorcycle engine |
| CN201606644U (en) * | 2009-11-18 | 2010-10-13 | 淳安德盛机械制造有限公司 | Oil pump assembly |
| CN101892427A (en) * | 2010-06-21 | 2010-11-24 | 桃江县正茂福利铸造有限公司 | High manganese steel and manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130306 |