CN103939173B - A kind of engine oil pump - Google Patents
A kind of engine oil pump Download PDFInfo
- Publication number
- CN103939173B CN103939173B CN201410147528.1A CN201410147528A CN103939173B CN 103939173 B CN103939173 B CN 103939173B CN 201410147528 A CN201410147528 A CN 201410147528A CN 103939173 B CN103939173 B CN 103939173B
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- China
- Prior art keywords
- oil
- pump
- engine
- housing assembly
- input channel
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- 239000010705 motor oil Substances 0.000 title claims abstract description 18
- 239000003921 oil Substances 0.000 claims abstract description 63
- 239000010687 lubricating oil Substances 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000010721 machine oil Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The present invention provides a kind of engine oil pump, its structure includes pump housing assembly, pressure limiting valve assembly, the oil-in connected respectively and oil-out with oil input channel and oil road, the oil-in of pressure limiting valve assembly connects with oil road, the drain tap of pressure limiting valve assembly connects with oil input channel, oil input channel and oil road are arranged in the casing wall of engine cylinder-body, pump housing assembly is inserted between oil input channel and oil road, the gear cavity of pump housing assembly is the cavity between oil input channel and oil road, the opening of cavity extends to described engine cylinder surface, and oil road is communicated to bottom engine cylinder-body.The present invention is by being arranged on pump housing assembly in the casing wall of engine cylinder-body, without separately setting gear cavity engine cylinder is external, reduce the weight that electromotor is overall, simplify lubricating oil pump when conventional lubricating oil pump is arranged and the oil duct trend of cylinder body, seal and the structure such as fixing；Simultaneously as gear cavity is integrated on cylinder body, noise problem can be reduced and reduce leakage of oil risk.
Description
Technical field
The present invention relates to technical field of automobile engine, be specifically related to a kind of engine oil pump.
Background technology
In the design field of electromotor, current engine oil pump arranges mainly there are two kinds of forms: one is mounted in motor head and is fixed on cylinder body, bent axle directly drive；Another kind of form is arranged in oil sump, hangs on the cylinder body bottom surface of installation, use single chain system driving crank to drive under lubricating oil pump.
The first version is i.e. arranged on motor head and is fixed on cylinder body, bent axle is used directly to drive, a kind of modal rotor-type oil pump arrangement form, it on cylinder body placement machine oil pump into and out of oil duct, and placement machine oil pump installing hole in the crankshaft hole of cylinder body front end.The lubricating oil pump of this form, due to outside crankcase, high to the seal request of lubricating oil pump, and it is also the strictest to assemble the alignment degree to bent axle, if controlling bad, is easily generated the problem such as lubricating oil pump abnormal sound and rotor breakage.
The second version is i.e. arranged in oil sump, hangs the cylinder body bottom surface of installation under lubricating oil pump, uses single chain system to drive.It is more that this structure is applied at present, owing to avoiding the sealing problem of the first form lubricating oil pump in being arranged on oil sump；And owing to using single chain system transmission, it also avoid the work abnormal sound problem between inside and outside rotor in oil pump.But its structure is more complicated, adds engine assembly parts number, too increase the axial dimension of electromotor, and relatively costly.
Summary of the invention
The purpose of the present invention is to propose to a kind of engine oil pump, simplify the mounting structure of lubricating oil pump, reduce the weight that electromotor is overall, decrease the risk of lubricating oil pump noise problem and leakage of oil.
The engine oil pump provided according to the present invention, including pump housing assembly, pressure limiting valve assembly, the oil-in connected with oil input channel and oil road respectively and oil-out, the oil-in of described pressure limiting valve assembly connects with described oil road, the drain tap of pressure limiting valve assembly connects with described oil input channel, it is critical only that: described oil input channel and oil road are arranged in the casing wall of engine cylinder-body, described pump housing assembly is inserted between described oil input channel and oil road, the gear cavity of described pump housing assembly is the cavity between described oil input channel and oil road, the opening of described cavity extends to described engine cylinder surface, described oil road is communicated to bottom engine cylinder-body.
The engine oil pump of the present invention, by pump housing assembly is arranged in the casing wall of engine cylinder-body, thus without separately setting gear cavity engine cylinder is external, the most just reduce the weight that electromotor is overall, simplify lubricating oil pump when conventional lubricating oil pump is arranged and the oil duct trend of cylinder body, seal and the structure such as fixing；Simultaneously as gear cavity is integrated on cylinder body, noise problem can be reduced；Oil input channel and oil road are integrated in the casing wall of engine cylinder-body, can reduce leakage of oil risk.
Further, the driving shaft of described pump housing assembly is connected with the timing sprocket of electromotor by timing chain.By using timing chain driving crank to drive, use independent chain drive compared with tradition lubricating oil pump, decrease a set of lubricating oil pump transmission chain system, simple and compact for structure, low cost.
Further, described pressure limiting valve assembly is upwards inserted in the installation cavity body of casing wall from cylinder base.Using engine oil pump pressure-limiting valve as a total member, it is directly installed on cylinder body, makes pressure limiting valve become internal drainage type structure, more compact structure can be made, reduce leakage of oil risk, cost-effective.
Specifically, sealed by O between the cavity wall of described pressure limiting valve assembly and described installation cavity.
Specifically, described lubricating oil pump is gear type oil pump, and the driving shaft of described pump housing assembly is installed with the axis hole interference fit on engine cylinder-body by lining.
As another embodiment, described lubricating oil pump is rotor-type oil pump, and the driving shaft of described pump housing assembly is installed with the axis hole interference fit on engine cylinder-body by lining.
Specifically, the pump cover of described pump housing assembly is by more than at least three be bolted on engine cylinder-body.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of the lubricating oil pump of the present invention.
Fig. 2 is the gear cavity structural representation of the lubricating oil pump pump housing assembly of the present invention.
Fig. 3 is the lubricating oil pump installation cooperation structure schematic diagram with engine cylinder-body of the present invention.
Fig. 4 is the lubricating oil pump outer mounting structure schematic diagram of the present invention.
Detailed description of the invention
Below against accompanying drawing, by the description to embodiment, the detailed description of the invention such as mutual alignment between the involved shape of each component, structure, each several part and annexation, the effect of each several part and operation principle etc. of the present invention is described in further detail.
Embodiment 1:
Such as Fig. 1, 2, 3, 4, the engine oil pump of the present invention, including pump housing assembly 1, pressure limiting valve assembly 2, the oil-in 11 connected with oil input channel 3 and oil road 4 respectively and oil-out 12, the oil-in 21 of pressure limiting valve assembly 2 connects with oil road 4, the drain tap 22 of pressure limiting valve assembly 2 leads to oil input channel 3, oil input channel 3 and oil road 4 are arranged in the casing wall of engine cylinder-body 5, pump housing assembly 1 is inserted between oil input channel 3 and oil road 4, the gear cavity of pump housing assembly 1 is the cavity 51 between oil input channel 3 and oil road 4, the opening of cavity 51 extends to engine cylinder-body 5 surface, oil road 4 is communicated to bottom engine cylinder-body 5.
Further, the driving shaft 13 of pump housing assembly 1 is connected with the timing sprocket of electromotor by timing chain, and wherein, driving shaft 13 connects sprocket wheel 6.By using timing chain driving crank to drive, use independent chain drive compared with tradition lubricating oil pump, decrease a set of lubricating oil pump transmission chain system, simple and compact for structure, low cost.
Further, pressure limiting valve assembly 2 is inserted in the installation cavity 52 of casing wall from cylinder body 5 bottom up.Using engine oil pump pressure-limiting valve as a total member, it is directly installed on cylinder body, makes pressure limiting valve become internal drainage type structure, more compact structure can be made, reduce leakage of oil risk, cost-effective.Sealed by O 23 and O 24 between pressure limiting valve assembly 2 and the cavity wall installing cavity 52.
The driving shaft 13 of pump housing assembly 1 is installed with the axis hole interference fit on engine cylinder-body 5 by lining 130.The pump cover 14 of pump housing assembly 1 is fixed on engine cylinder-body 5 by bolt 140.
Claims (7)
1. an engine oil pump, including pump housing assembly, pressure limiting valve assembly, the oil-in connected with oil input channel and oil road respectively and oil-out, the oil-in of described pressure limiting valve assembly connects with described oil road, the drain tap of pressure limiting valve assembly connects with described oil input channel, it is characterized in that: described oil input channel and oil road are arranged in the casing wall of engine cylinder-body, described pump housing assembly is inserted between described oil input channel and oil road, the gear cavity of described pump housing assembly is the cavity between described oil input channel and oil road, the opening of described cavity extends to described engine cylinder surface, described oil road is communicated to bottom engine cylinder-body.
Engine oil pump the most according to claim 1, it is characterised in that the driving shaft of described pump housing assembly is connected with the timing sprocket of electromotor by timing chain.
Engine oil pump the most according to claim 1, it is characterised in that described pressure limiting valve assembly is upwards inserted in the installation cavity body of casing wall from cylinder base.
Engine oil pump the most according to claim 3, it is characterised in that sealed by O between the cavity wall of described pressure limiting valve assembly and described installation cavity.
5., according to the engine oil pump described in claim 1 or 2 or 3 or 4, it is characterised in that described lubricating oil pump is gear type oil pump, the driving shaft of described pump housing assembly is installed with the axis hole interference fit on engine cylinder-body by lining.
6., according to the engine oil pump described in claim 1 or 2 or 3 or 4, it is characterised in that described lubricating oil pump is rotor-type oil pump, the driving shaft of described pump housing assembly is installed with the axis hole interference fit on engine cylinder-body by lining.
Engine oil pump the most according to claim 5, it is characterised in that the pump cover of described pump housing assembly is by more than at least three be bolted on engine cylinder-body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410147528.1A CN103939173B (en) | 2014-04-14 | 2014-04-14 | A kind of engine oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410147528.1A CN103939173B (en) | 2014-04-14 | 2014-04-14 | A kind of engine oil pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103939173A CN103939173A (en) | 2014-07-23 |
| CN103939173B true CN103939173B (en) | 2016-09-14 |
Family
ID=51187016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410147528.1A Active CN103939173B (en) | 2014-04-14 | 2014-04-14 | A kind of engine oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103939173B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964151A (en) * | 2015-07-03 | 2015-10-07 | 南京高德机械有限公司 | Diesel engine oil pump |
| CN105525964A (en) * | 2016-01-24 | 2016-04-27 | 徐毓艺 | Efficient and energy-saving lubricating oil pump |
| CN109000139A (en) * | 2018-08-06 | 2018-12-14 | 奇瑞汽车股份有限公司 | Rotor engine oil pump |
| CN111206974B (en) * | 2018-11-21 | 2021-03-26 | 宝沃汽车（中国）有限公司 | Engine and vehicle |
| CN109469528A (en) * | 2018-12-28 | 2019-03-15 | 杭州电子科技大学 | A kind of change discharge capacity inner-rotor-type lubricating oil pump |
| CN110486509A (en) * | 2019-09-16 | 2019-11-22 | 湖南机油泵股份有限公司 | It can prevent the engine oil pump pressure-limiting valve of plunger eccentric wear |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3286472B2 (en) * | 1994-09-02 | 2002-05-27 | ヤンマーディーゼル株式会社 | Internal combustion engine gear case |
| CN201050390Y (en) * | 2007-04-21 | 2008-04-23 | 潍柴动力股份有限公司 | Integral diesel engine oil pump |
| CN201738961U (en) * | 2010-06-30 | 2011-02-09 | 长城汽车股份有限公司 | Oil pump of transverse diesel engine |
| CN102052120B (en) * | 2010-11-27 | 2013-01-02 | 奇瑞汽车股份有限公司 | Engine oil pump |
| CN203394647U (en) * | 2013-07-12 | 2014-01-15 | 昆明云内动力股份有限公司 | Engine cylinder body of integrated oil pump shell |
-
2014
- 2014-04-14 CN CN201410147528.1A patent/CN103939173B/en active Active
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| Publication number | Publication date |
|---|---|
| CN103939173A (en) | 2014-07-23 |
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