CN103307430A - Rotor-type oil pump mounted on crankcase body - Google Patents
Rotor-type oil pump mounted on crankcase body Download PDFInfo
- Publication number
- CN103307430A CN103307430A CN2013102643805A CN201310264380A CN103307430A CN 103307430 A CN103307430 A CN 103307430A CN 2013102643805 A CN2013102643805 A CN 2013102643805A CN 201310264380 A CN201310264380 A CN 201310264380A CN 103307430 A CN103307430 A CN 103307430A
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- oil pump
- rotor
- oil
- pump shaft
- crankcase body
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Abstract
The invention discloses a rotor-type oil pump mounted on a crankcase body, which comprises an inner rotor (1), an outer rotor (2), an oil pump shaft (3) and the crankcase body (4), wherein a component comprising the inner rotor (1), the outer rotor (2) and the oil pump shaft (3) is mounted in a corresponding cavity of the crankcase body (4), and is positioned through an oil pump cover (5) arranged on the outer side of the cavity, the axial line of the oil pump shaft (3) is perpendicular to a main oil duct (4a), an oil inlet (4b) and an oil outlet (4c), which are communicated with the main oil duct (4a), are formed in the cavity, the inner rotor (1) is fixed on the oil pump shaft (3), the outer rotor (2) rotates with the inner rotor (1), the inner rotor (1) and the oil pump shaft (3) are arranged coaxially, and an eccentric distance exists between the outer rotor (2) and the inner rotor (1). The invention provides the rotor-type oil pump which can be mounted on the crankcase body directly, and the crankcase body is adopted as a pump body of the oil pump to lower the manufacturing cost of the oil pump.
Description
Technical field
The present invention relates to a kind of rotor-type oil pump, belong to the mechanical structure technical field.
Background technique
Traditional rotor-type oil pump is independent parts, is made up of the pump housing, oil pump cover, internal rotor, external rotor, oil pump shaft.Inside and outside rotor and oil pump shaft all are contained in the pump housing, and internal rotor is fixed on the oil pump shaft, and external rotor is free to rotate in the pump housing, and internal rotor and the coaxial setting of oil pump shaft have certain throw of eccentric between external rotor and the internal rotor, and inside and outside rotor meshes together.Its working principle: oil pump shaft drives internal rotor and rotates, and internal rotor drives external rotor and rotates; When internal rotor forwarded any angle to, the mutual holding point contact condition of total energy like this, just formed four active chambers on the profile of tooth flank profil line of inside and outside each tooth of rotor between inside and outside rotor.When a certain active chamber turned over from oil inlet hole, volume increased, and produced vacuum, and machine oil just sucks through oil inlet hole; Rotor continues rotation, and when this active chamber communicated with oil outlet, the chamber internal volume reduced, the oil pressure rising, machine oil in oil outlet is pressed into oil leab, thereby realized the pump functional oil.
The rotor-type oil pump compact structure, fuel feeding is even, oil suction degree of vacuum height, the pump oil mass is big, extensively adopts on motor.During assembling, gerotor pump is installed on the motor as independent parts, and machine oil at first through the oil purifier of oil sump, is pumped by oil pump, arrives main oil gallery.Because oil pump need arrange the pump housing separately, and offers oil inlet hole and oil outlet at the pump housing, the manufacture cost height.
Summary of the invention
The present invention aims to provide a kind of rotor-type oil pump that is directly installed on the crankcase body, uses crankcase body as the pump housing of oil pump, to reduce the manufacture cost of oil pump.
For this reason, the technical solution adopted in the present invention is: a kind of rotor-type oil pump that is installed on the crankcase body, comprise internal rotor (1), external rotor (2), oil pump shaft (3) and crankcase body (4), key is: described internal rotor (1), the assembly that external rotor (2) and oil pump shaft (3) constitute is installed in crankcase body (4) and goes up in the corresponding cavity that arranges, and by being arranged on oil pump cover (5) location in the cavity outside, the axis normal of described oil pump shaft (3) is in main oil gallery (4a), and described cavity is provided with oil inlet hole (4b) and the oil outlet (4c) that communicates with main oil gallery (4a); Described internal rotor (1) is fixed on the oil pump shaft (3), and external rotor (2) rotates with internal rotor (1), and there are throw of eccentric in internal rotor (1) and the coaxial setting of oil pump shaft (3) between external rotor (2) and the internal rotor (1).
Be preferably, described oil inlet hole (4b) and oil outlet (4c) are arranged on cavity bottom and perpendicular to main oil gallery (4a), oil inlet hole (4b) and oil outlet (4c) lay respectively at the both sides of oil pump shaft (3), so that the processing of oil inlet hole and oil outlet.
The present invention is incorporated into the function of rotor-type oil pump on the crankcase body, uses crankcase body and installs as the pump housing of oil pump, makes oil pump develop into split-type structural from traditional monolithic construction.Its working principle is identical with traditional rotor-type oil pump working principle, and by driving oil pump shaft, oil pump shaft drives internal rotor and rotates, and internal rotor drives external rotor and rotates, thereby realizes the pump functional oil.Internal rotor in the split type oil pump, external rotor, oil pump shaft and traditional oil pump part are general, and do not need to arrange separately the pump housing, are guaranteeing to have reduced the manufacture cost of oil pump under the prerequisite that the pump functional oil is realized.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1 be installed in rotor-type oil pump on the crankcase body, formed by internal rotor 1, external rotor 2, oil pump shaft 3, crankcase body 4, oil pump cover 5.Internal rotor 1, external rotor 2 and oil pump shaft 3 are requisite three core components in the rotor-type oil pump, and the assembly that the three constitutes is installed in the cavity of corresponding setting on the crankcase body 4.Oil pump cover 5 is arranged on the outside of cavity, and the assembly that internal rotor 1, external rotor 2 and oil pump shaft 3 constitute is by oil pump cover 5 location, prevents that assembly from scurrying out in cavity, and the outboard end of oil pump shaft 3 reaches outside the oil pump cover 5.The axis normal of oil pump shaft 3 is in main oil gallery 4a, and cavity is provided with oil inlet hole 4b and the oil outlet 4c that communicates with main oil gallery 4a.Internal rotor 1 is fixed on the oil pump shaft 3, and external rotor 1,2 meshes together, and external rotor 2 rotates with internal rotor 1, and there are throw of eccentric in internal rotor 1 and oil pump shaft 3 coaxial settings between external rotor 2 and the internal rotor 1.Annexation between internal rotor 1, external rotor 2 and the oil pump shaft 3 is identical with traditional rotor-type oil pump.
Preferably, oil inlet hole 4b and oil outlet 4c are arranged on cavity bottom and perpendicular to main oil gallery 4a, oil inlet hole 4b and oil outlet 4c lay respectively at the both sides of oil pump shaft 3, so that the processing of oil inlet hole 4b and oil outlet 4c.
Claims (2)
1. rotor-type oil pump that is installed on the crankcase body, comprise internal rotor (1), external rotor (2), oil pump shaft (3) and crankcase body (4), it is characterized in that: the assembly that described internal rotor (1), external rotor (2) and oil pump shaft (3) constitute is installed in crankcase body (4) and goes up in the corresponding cavity that arranges, and by being arranged on oil pump cover (5) location in the cavity outside, the axis normal of described oil pump shaft (3) is in main oil gallery (4a), and described cavity is provided with oil inlet hole (4b) and the oil outlet (4c) that communicates with main oil gallery (4a); Described internal rotor (1) is fixed on the oil pump shaft (3), and external rotor (2) rotates with internal rotor (1), and there are throw of eccentric in internal rotor (1) and the coaxial setting of oil pump shaft (3) between external rotor (2) and the internal rotor (1).
2. according to the described rotor-type oil pump that is installed on the crankcase body of claim 1, it is characterized in that: described oil inlet hole (4b) and oil outlet (4c) are arranged on cavity bottom and perpendicular to main oil gallery (4a), oil inlet hole (4b) and oil outlet (4c) lay respectively at the both sides of oil pump shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102643805A CN103307430A (en) | 2013-06-28 | 2013-06-28 | Rotor-type oil pump mounted on crankcase body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102643805A CN103307430A (en) | 2013-06-28 | 2013-06-28 | Rotor-type oil pump mounted on crankcase body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103307430A true CN103307430A (en) | 2013-09-18 |
Family
ID=49132967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102643805A Pending CN103307430A (en) | 2013-06-28 | 2013-06-28 | Rotor-type oil pump mounted on crankcase body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103307430A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883424A (en) * | 2014-03-26 | 2014-06-25 | 江门天钇金属工业有限公司 | Motorcycle engine |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2100354A (en) * | 1981-06-16 | 1982-12-22 | Fuji Heavy Ind Ltd | An internal-combustion engine oil pump |
| US5085187A (en) * | 1991-03-11 | 1992-02-04 | Chrysler Corporation | Integral engine oil pump and pressure regulator |
| JP2007024007A (en) * | 2005-07-21 | 2007-02-01 | Honda Motor Co Ltd | Lubricating device of internal combustion engine |
| FR2879650B1 (en) * | 2004-12-21 | 2007-02-23 | Renault Sas | OIL PUMP ARRANGEMENT |
| CN101634240A (en) * | 2009-07-28 | 2010-01-27 | 重庆隆鑫机车有限公司 | Engine oil pump structure |
| CN201496117U (en) * | 2009-07-28 | 2010-06-02 | 重庆隆鑫机车有限公司 | Assembling structure of engine oil pump on engine |
| 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 |
| CN201891458U (en) * | 2010-12-01 | 2011-07-06 | 洛阳北方易初摩托车有限公司 | Lubricating oil circulating system of motorcycle engine |
-
2013
- 2013-06-28 CN CN2013102643805A patent/CN103307430A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2100354A (en) * | 1981-06-16 | 1982-12-22 | Fuji Heavy Ind Ltd | An internal-combustion engine oil pump |
| US5085187A (en) * | 1991-03-11 | 1992-02-04 | Chrysler Corporation | Integral engine oil pump and pressure regulator |
| FR2879650B1 (en) * | 2004-12-21 | 2007-02-23 | Renault Sas | OIL PUMP ARRANGEMENT |
| JP2007024007A (en) * | 2005-07-21 | 2007-02-01 | Honda Motor Co Ltd | Lubricating device of internal combustion engine |
| CN101634240A (en) * | 2009-07-28 | 2010-01-27 | 重庆隆鑫机车有限公司 | Engine oil pump structure |
| CN201496117U (en) * | 2009-07-28 | 2010-06-02 | 重庆隆鑫机车有限公司 | Assembling structure of engine oil pump on engine |
| 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 |
| CN201891458U (en) * | 2010-12-01 | 2011-07-06 | 洛阳北方易初摩托车有限公司 | Lubricating oil circulating system of motorcycle engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883424A (en) * | 2014-03-26 | 2014-06-25 | 江门天钇金属工业有限公司 | Motorcycle engine |
| CN103883424B (en) * | 2014-03-26 | 2017-01-18 | 江门天钇金属工业有限公司 | Motorcycle engine |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130918 |