CN102003385A - Inner pump cover rotor oil pump installed on backside of pump cover - Google Patents
Inner pump cover rotor oil pump installed on backside of pump cover Download PDFInfo
- Publication number
- CN102003385A CN102003385A CN 201010582123 CN201010582123A CN102003385A CN 102003385 A CN102003385 A CN 102003385A CN 201010582123 CN201010582123 CN 201010582123 CN 201010582123 A CN201010582123 A CN 201010582123A CN 102003385 A CN102003385 A CN 102003385A
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- pump cover
- pump
- rotor
- cover
- sealing
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- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention discloses an inner pump cover rotor oil pump installed on the backside of a pump cover. The pump comprises a pump cover 6, a pump body 2, an inner rotor 3 and an outer rotor 4, wherein the outer rotor 4 is installed in the rotor hole of the pump body 2, the inner rotor 3 is sleeved in the hole of the outer rotor 4, the inner rotor 3 is provided with a stepped locating ring 31, the stepped locating ring 31 is located on the left side of the inner rotor 3, and the pump cover 6 is installed at the backsides of the inner rotor 3, the outer rotor 4 and the pump body 2. Because an oil pump front pump cover installed on the frontage of an engine is replaced by an inner pump cover installed on the backside of the engine, the invention has the advantages that the problem of surface oil leakage is solved, and the material cost is lowered; since the pump cover is installed in the inner part of the oil pump, the faying face of the pump cover and the pump body does not require a sealing gasket, a working procedure for manufacturing a sealing groove is omitted, the manufacturability of machine work is improved, and the production cost is reduced; and especially, after the front pump cover is replaced by the inner pump cover, the sealing ring hole of the front pump cover is in an integral structure, thus the installation sealing degree of the crank shaft oil sealing hole and crank shaft of the front pump cover is improved, and the sealing efficacy is improved.
Description
Technical field
The present invention relates to a kind of rotor engine oil pump of motorcar engine, pump cover rotor engine oil pump in particularly a kind of pump cover is back mounted.
Background technique
The bottom of the aluminium matter front cover of existing motorcar engine is provided with the whole front pump cover rotor engine oil pump that connects, comprise pump cover 1, the pump housing 2, internal rotor 3 and external rotor 4 (as shown in Figure 1), internal rotor 3 and external rotor 4 are installed in the rotor hole of the pump housing 2, stepped shape positioning ring 31 is arranged on the internal rotor 3, stepped shape positioning ring 31 is positioned at the right of internal rotor 3, pump cover 1 is installed in the front of inside and outside rotor, and pump cover 1 and the pump housing 2 junction planes are provided with fixing ring 5.Its deficiency is: because of pump cover 1 assembling centering difficulty big, influence the sealing of oil sealing and spindle nose, its sealability that connects the plane is relatively poor, seepage takes place easily, the seal groove difficulty of processing is bigger simultaneously, and precision is difficult to control, and manufacturing efficiency is low, the manufacture cost height is not suitable for the technical requirements that modernized high-performance enginer uses.
Summary of the invention
The objective of the invention is to overcome the deficiency on the prior art, and provide a kind of pump cover back mounted interior pump cover rotor engine oil pump, to improve the image appearance of oil pump integral body, solve the difficult problem of original pump cover, pump housing junction plane oil impregnate, improve machining accuracy and efficient, reduce production costs.
Technological scheme of the present invention is: pump cover rotor engine oil pump in a kind of pump cover is back mounted, comprise the pump housing, pump cover, internal rotor and external rotor, external rotor is installed in the rotor hole of the pump housing, internal rotor is sleeved in the hole of external rotor, the stepped shape positioning ring is arranged on the internal rotor, and pump cover is installed in the back side of inside and outside rotor.
The further technological scheme of the present invention is: the stepped shape positioning ring is positioned at the left side of internal rotor.
The present invention makes appearance complete more attractive in appearance owing to change the positive oil pump front pump cover of installing of motor into back mounted interior pump cover, has solved the difficult problem of surperficial oil impregnate fully; Pump cover changes steel plate into by aluminium, can reduce cost of material, simultaneously, pump cover is contained in oil pump inside, does not need sealing gasket with the junction plane of the pump housing, has saved the O RunddichtringO again, reduce the one procedure of processing seal groove, improved mach manufacturability, reduced cost of production; Behind the pump cover, the seal ring hole of front pump cover becomes overall structure, has improved the seal degree of front pump cover crank shaft oil seal hole and crankshaft installed, has improved sealing effect in particularly front pump cover being changed into.
Below in conjunction with the drawings and specific embodiments detailed content of the present invention is further described.
Description of drawings
Fig. 1 is the structural representation of existing front pump cover rotor engine oil pump;
Fig. 2 is a structural representation of the present invention.
Embodiment
As shown in Figure 2: pump cover rotor engine oil pump in a kind of pump cover is back mounted, comprise pump cover 6, the pump housing 2, internal rotor 3 and external rotor 4, external rotor 4 is installed in the rotor hole of the pump housing 2, internal rotor 3 is sleeved in the hole of external rotor 4, stepped shape positioning ring 31 is arranged on the internal rotor 3, stepped shape positioning ring 31 is positioned at the left side of internal rotor 3, and pump cover 6 is installed in the back side of internal rotor 3, external rotor 4 and the pump housing 2.
Claims (2)
- A pump cover back mounted in the pump cover rotor engine oil pump, comprise the pump housing, pump cover, external rotor and internal rotor, external rotor is installed in the rotor hole of the pump housing, and internal rotor is sleeved in the hole of external rotor, the stepped shape positioning ring is arranged on the internal rotor, it is characterized in that pump cover is installed in the back side of inside and outside rotor.
- 2. pump cover rotor engine oil pump in pump cover according to claim 1 is back mounted is characterized in that the stepped shape positioning ring is positioned at the left side of internal rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010582123 CN102003385A (en) | 2010-11-27 | 2010-11-27 | Inner pump cover rotor oil pump installed on backside of pump cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010582123 CN102003385A (en) | 2010-11-27 | 2010-11-27 | Inner pump cover rotor oil pump installed on backside of pump cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102003385A true CN102003385A (en) | 2011-04-06 |
Family
ID=43811012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010582123 Pending CN102003385A (en) | 2010-11-27 | 2010-11-27 | Inner pump cover rotor oil pump installed on backside of pump cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102003385A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261554A (en) * | 2011-05-04 | 2011-11-30 | 奇瑞汽车股份有限公司 | Rotor type oil pump |
| CN103047133A (en) * | 2011-10-12 | 2013-04-17 | 沈建光 | Energy-saving oil pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2396210Y (en) * | 1999-12-03 | 2000-09-13 | 江苏机油泵厂 | Cover postpositive machine oil pump |
| CN2763580Y (en) * | 2005-01-04 | 2006-03-08 | 王建干 | End face sealed integral lubricant pump |
| CN101303012A (en) * | 2008-07-02 | 2008-11-12 | 陈杰余 | Engine oil pump of internal combustion engine |
| CN201202633Y (en) * | 2008-04-17 | 2009-03-04 | 宁波圣龙汽车零部件有限公司 | Rotor type engine oil pump |
| CN201448232U (en) * | 2009-06-18 | 2010-05-05 | 唐建康 | Oil pump with built-in pump cover |
-
2010
- 2010-11-27 CN CN 201010582123 patent/CN102003385A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2396210Y (en) * | 1999-12-03 | 2000-09-13 | 江苏机油泵厂 | Cover postpositive machine oil pump |
| CN2763580Y (en) * | 2005-01-04 | 2006-03-08 | 王建干 | End face sealed integral lubricant pump |
| CN201202633Y (en) * | 2008-04-17 | 2009-03-04 | 宁波圣龙汽车零部件有限公司 | Rotor type engine oil pump |
| CN101303012A (en) * | 2008-07-02 | 2008-11-12 | 陈杰余 | Engine oil pump of internal combustion engine |
| CN201448232U (en) * | 2009-06-18 | 2010-05-05 | 唐建康 | Oil pump with built-in pump cover |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261554A (en) * | 2011-05-04 | 2011-11-30 | 奇瑞汽车股份有限公司 | Rotor type oil pump |
| CN103047133A (en) * | 2011-10-12 | 2013-04-17 | 沈建光 | Energy-saving oil pump |
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Legal Events
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|---|---|---|---|
| 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: 20110406 |