CN105240673A - Rotor type double-stage oil pump - Google Patents
Rotor type double-stage oil pump Download PDFInfo
- Publication number
- CN105240673A CN105240673A CN201510737626.5A CN201510737626A CN105240673A CN 105240673 A CN105240673 A CN 105240673A CN 201510737626 A CN201510737626 A CN 201510737626A CN 105240673 A CN105240673 A CN 105240673A
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- pump
- rotor
- auxiliary
- main
- housing
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- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention provides a rotor type double-stage oil pump which comprises a primary pump body, a primary pump inner rotor, a primary pump outer rotor, a drive shaft, a middle partition plate, a secondary pump body, a secondary pump inner rotor and a secondary pump outer rotor, wherein the primary pump body is positioned above the secondary pump body; the middle partition plate is positioned between the primary pump body and the secondary pump body; a primary pump oil inlet and a primary pump oil outlet are formed in the middle partition plate; the lower part of the secondary pump body is provided with a secondary pump oil inlet and a secondary pump oil outlet; the primary pump inner rotor and the primary pump outer rotor are positioned in a rotor cavity of the primary pump body; the secondary pump inner rotor and the secondary pump outer rotor are positioned in a rotor cavity of the secondary pump body; the drive shaft simultaneously penetrates through the primary pump body, the middle partition plate and the secondary pump body; the primary pump inner rotor and the secondary pump inner rotor are mounted on the drive shaft. According to the technical scheme, a rotor with relatively low cost is used to replace a gear with relatively high gear, so that the oil pump is more compact in structure and lower in cost.
Description
Technical field
The present invention relates to a kind of engine oil pump of internal combustion engine, especially a kind of rotator type double grade engine oil pump structure.
Background technique
In the engineering machinery of a few thing place injustice or the large vehicular engine of climbable gradient, generally all can increase an auxiliary pump, be used for because of engine tilts, the machine oil returned bottom less than oil sump is sucked back into bottom oil sump, ensure the oil level of oil sump, be unlikely to allow oil pump inhale empty, cause gassiness in fuel oil, thus adverse influence is caused to motor.In order to address this problem, prior art normally integrates main pump and auxiliary pump, forms a two-stage pump, but existing two-stage pump is all adopt ripe gear pump structure, and its shortcoming is that cost is high, is unfavorable for promoting in little vehicle.
Summary of the invention
The object of the invention is to overcome the high deficiency of existing gear type two-stage pump cost and the rotator type two-stage oil pump providing a kind of compact structure, cost low.
Technological scheme of the present invention is: a kind of rotator type two-stage oil pump, and it comprises the main pump pump housing, main pump internal rotor, main pump external rotor, driving shaft, intermediate clapboard, the auxiliary pump pump housing, auxiliary pump internal rotor, auxiliary pump external rotor; The described main pump pump housing is positioned at the top of the described auxiliary pump pump housing, described intermediate clapboard is between the main pump pump housing and the auxiliary pump pump housing, described intermediate clapboard has main pump filler opening and main pump oil outlet, the bottom of the described auxiliary pump pump housing has auxiliary pump filler opening and auxiliary pump oil outlet; Described main pump internal rotor and main pump external rotor are positioned at the rotor chamber of the main pump pump housing, and described auxiliary pump internal rotor and auxiliary pump external rotor are positioned at the rotor chamber of the auxiliary pump pump housing; Described driving shaft is simultaneously through the main pump pump housing, intermediate clapboard, the auxiliary pump pump housing, and described main pump internal rotor and auxiliary pump internal rotor are installed on driving shaft.
Preferably, described main pump internal rotor, main pump external rotor, auxiliary pump internal rotor, auxiliary pump external rotor all adopt powdered metallurgical material to sinter compacting and form.
In technique scheme, with the gear that lower-cost rotor alternative cost is higher, make machine oil pump structure more compact, cost is lower, it utilizes the throw of eccentric of different direction, is staggered in the turnover of two pairs of rotors oil direction, thus the rotator type two-stage pump that composition one is complete.In preferred technological scheme, because rotor material adopts powder metallurgy, internal rotor is cellular structure, has a large amount of hole, effectively can absorb noise, thus reduces the noise of oil pump.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is plan structure schematic diagram of the present invention.
Embodiment
A kind of rotator type two-stage oil pump as shown in Figure 1, 2, it comprises the main pump pump housing 1, main pump internal rotor 4, main pump external rotor 5, driving shaft 6, intermediate clapboard 2, the auxiliary pump pump housing 3, auxiliary pump internal rotor 7, auxiliary pump external rotor 8; The described main pump pump housing 1 is positioned at the top of the described auxiliary pump pump housing 3, described intermediate clapboard 2 is between the main pump pump housing 1 and the auxiliary pump pump housing 3, described intermediate clapboard 2 has main pump filler opening 9 and main pump oil outlet 10, the bottom of the described auxiliary pump pump housing 3 has auxiliary pump filler opening 11 and auxiliary pump oil outlet 12; Described main pump internal rotor 4 and main pump external rotor 5 are positioned at the rotor chamber of the main pump pump housing 1, and described auxiliary pump internal rotor 7 and auxiliary pump external rotor 8 are positioned at the rotor chamber of the auxiliary pump pump housing 3; Described driving shaft 6 is simultaneously through the main pump pump housing 1, intermediate clapboard 2, the auxiliary pump pump housing 3, and described main pump internal rotor 4 and auxiliary pump internal rotor 7 are installed on driving shaft 6; Described main pump internal rotor 4, main pump external rotor 5, auxiliary pump internal rotor 7, auxiliary pump external rotor 8 all adopt powdered metallurgical material to sinter compacting and form.
Claims (2)
1. a rotator type two-stage oil pump, is characterized in that: it comprises the main pump pump housing, main pump internal rotor, main pump external rotor, driving shaft, intermediate clapboard, the auxiliary pump pump housing, auxiliary pump internal rotor, auxiliary pump external rotor; The described main pump pump housing is positioned at the top of the described auxiliary pump pump housing, described intermediate clapboard is between the main pump pump housing and the auxiliary pump pump housing, described intermediate clapboard has main pump filler opening and main pump oil outlet, the bottom of the described auxiliary pump pump housing has auxiliary pump filler opening and auxiliary pump oil outlet; Described main pump internal rotor and main pump external rotor are positioned at the rotor chamber of the main pump pump housing, and described auxiliary pump internal rotor and auxiliary pump external rotor are positioned at the rotor chamber of the auxiliary pump pump housing; Described driving shaft is simultaneously through the main pump pump housing, intermediate clapboard, the auxiliary pump pump housing, and described main pump internal rotor and auxiliary pump internal rotor are installed on driving shaft.
2. rotator type two-stage oil pump according to claim 1, is characterized in that: described main pump internal rotor, main pump external rotor, auxiliary pump internal rotor, auxiliary pump external rotor all adopt powdered metallurgical material to sinter compacting and form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510737626.5A CN105240673A (en) | 2015-11-04 | 2015-11-04 | Rotor type double-stage oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510737626.5A CN105240673A (en) | 2015-11-04 | 2015-11-04 | Rotor type double-stage oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105240673A true CN105240673A (en) | 2016-01-13 |
Family
ID=55038439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510737626.5A Pending CN105240673A (en) | 2015-11-04 | 2015-11-04 | Rotor type double-stage oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105240673A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090589A (en) * | 2016-08-03 | 2016-11-09 | 湖南机油泵股份有限公司 | A kind of rotor-type oil pump |
| CN107327689A (en) * | 2017-08-17 | 2017-11-07 | 湖南机油泵股份有限公司 | A kind of duplex lubricating oil pump of variable displacement |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2270152Y (en) * | 1996-11-21 | 1997-12-10 | 郎维环 | Small cycloidal lubricating oil pump |
| CN201705410U (en) * | 2010-04-26 | 2011-01-12 | 重庆隆鑫机车有限公司 | Oil pump for engine double-lubrication system |
| CN201779430U (en) * | 2010-09-15 | 2011-03-30 | 重庆宗申发动机制造有限公司 | Oil pump |
| US20120061184A1 (en) * | 2010-09-14 | 2012-03-15 | Eaton Corporation | Transmission Pump |
| CN202469433U (en) * | 2011-12-30 | 2012-10-03 | 自贡市川力实业有限公司 | Dual-oil way structure for high-power engine oil pump |
| CN203641827U (en) * | 2013-10-18 | 2014-06-11 | 湖南机油泵股份有限公司 | Two-stage oil pump |
| CN204312978U (en) * | 2014-03-20 | 2015-05-06 | 自贡市川力实业有限公司 | Rotor oil pump |
| CN204592821U (en) * | 2015-03-12 | 2015-08-26 | 四川兆润摩托车制造有限公司 | A kind of engine for motorcycle oil pump |
| CN205155523U (en) * | 2015-11-04 | 2016-04-13 | 湖南机油泵股份有限公司 | Rotor formula double grade engine oil pump |
-
2015
- 2015-11-04 CN CN201510737626.5A patent/CN105240673A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2270152Y (en) * | 1996-11-21 | 1997-12-10 | 郎维环 | Small cycloidal lubricating oil pump |
| CN201705410U (en) * | 2010-04-26 | 2011-01-12 | 重庆隆鑫机车有限公司 | Oil pump for engine double-lubrication system |
| US20120061184A1 (en) * | 2010-09-14 | 2012-03-15 | Eaton Corporation | Transmission Pump |
| CN201779430U (en) * | 2010-09-15 | 2011-03-30 | 重庆宗申发动机制造有限公司 | Oil pump |
| CN202469433U (en) * | 2011-12-30 | 2012-10-03 | 自贡市川力实业有限公司 | Dual-oil way structure for high-power engine oil pump |
| CN203641827U (en) * | 2013-10-18 | 2014-06-11 | 湖南机油泵股份有限公司 | Two-stage oil pump |
| CN204312978U (en) * | 2014-03-20 | 2015-05-06 | 自贡市川力实业有限公司 | Rotor oil pump |
| CN204592821U (en) * | 2015-03-12 | 2015-08-26 | 四川兆润摩托车制造有限公司 | A kind of engine for motorcycle oil pump |
| CN205155523U (en) * | 2015-11-04 | 2016-04-13 | 湖南机油泵股份有限公司 | Rotor formula double grade engine oil pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090589A (en) * | 2016-08-03 | 2016-11-09 | 湖南机油泵股份有限公司 | A kind of rotor-type oil pump |
| CN107327689A (en) * | 2017-08-17 | 2017-11-07 | 湖南机油泵股份有限公司 | A kind of duplex lubricating oil pump of variable displacement |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160113 |
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| RJ01 | Rejection of invention patent application after publication |