CN104482385B - Engine oil pump of internal combustion engine - Google Patents
Engine oil pump of internal combustion engine Download PDFInfo
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- CN104482385B CN104482385B CN201410755598.5A CN201410755598A CN104482385B CN 104482385 B CN104482385 B CN 104482385B CN 201410755598 A CN201410755598 A CN 201410755598A CN 104482385 B CN104482385 B CN 104482385B
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Abstract
The invention discloses a kind of engine oil pump of internal combustion engine, including being provided with the pump case of oil suction chamber, described pump case is additionally provided with the seal groove for sealing described oil suction chamber；Be additionally provided with on described pump case oil-out and connect with described oil-out go out oil pocket I, described seal groove be with described go out oil pocket I communicate by filling up high-pressure oil to realize oil-tightening oil groove；The engine oil pump of internal combustion engine of the present invention, it is provided with on its pump case and is specifically designed to the seal groove being sealed into oil pocket, seal groove can be effectively prevented air by oil-sealing measures and be inhaled in oil suction chamber, avoid engine oil pressure not enough and machine oil foamed, ensure smooth delivery of power and the lubricating quality of machine oil, so that the overall performance of electromotor is strengthened, increasing service life of engine, raising energy-saving effect.
Description
Technical field
The present invention relates to a kind of internal combustion engine component, particularly to a kind of engine oil pump of internal combustion engine.
Background technology
Engine oil pump of internal combustion engine be lubricating oil pump be engine oil pressure and the power source of flow in lube system, it ensures internal combustion
Engine oil pressure required for machine lubrication and flow；Existing lubricating oil pump from structure from the point of view of by be divided into gear type, turn
Minor, vane type and plunger type, but the most similar in pump oil principle；Existing engine oil pump of internal combustion engine one
As include pump case and pump cover, pump case is provided with oil suction chamber, goes out oil pocket and corresponding oil duct, enters during motion
Oil pocket forms low-pressure area, goes out oil pocket formation higher-pressure region, the machine oil in oil sump is delivered to oil filter with each
Oil leab, with each main movement parts of lubricating internal combustion engines, and makes machine oil obtain filtering；Pump case and pump cover
Press mutually with end face, with each functional chamber on seal cage；But, this sealing means is unsatisfactory, especially
It is the oil suction chamber for area of low pressure, is sealed into the structure of oil pocket owing to being not provided with on pump case being specifically designed to,
Cause air to be inhaled in oil suction chamber, not only cause engine oil pressure not enough, impact conveying, and air and machine
Oil mixing makes machine oil foamed reduce lubricating quality, directly weakens the overall performance of internal combustion engine, especially
It is to shorten the service life of internal combustion engine and reduce energy-saving effect.
Therefore, for solving the problems referred to above, it is necessary to a kind of engine oil pump of internal combustion engine, its pump case is provided with special
For being sealed into the structure of oil pocket, effectively prevent air to be inhaled in oil suction chamber, it is to avoid engine oil pressure is not enough and
Machine oil foamed, it is ensured that the smooth delivery of power of machine oil and lubricating quality, so that the overall performance of internal combustion engine obtains
Strengthening, extends internal combustion engine service life, improves energy-saving effect.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of engine oil pump of internal combustion engine, its pump case is provided with specially
Door, for being sealed into the structure of oil pocket, effectively prevents air to be inhaled in oil suction chamber, it is to avoid engine oil pressure is not enough
And machine oil foamed, it is ensured that the smooth delivery of power of machine oil and lubricating quality, so that the overall performance of internal combustion engine obtains
To strengthening, extend internal combustion engine service life, improve energy-saving effect.
The engine oil pump of internal combustion engine of the present invention, including being provided with the pump case of oil suction chamber, described pump case is additionally provided with for
Seal the seal groove of described oil suction chamber.
Further, described pump case is additionally provided with oil-out and connect with described oil-out go out oil pocket I, described
Seal groove be with described go out oil pocket I communicate by filling up high-pressure oil to realize oil-tightening oil groove.
Further, described pump case is additionally provided with go out that oil pocket I is connected go out oil pocket II, described seal groove
Two ends respectively with described go out oil pocket I and described go out oil pocket II communicate and described oil suction chamber be included in wherein.
Further, this engine oil pump of internal combustion engine also includes the pressure limiting assembly for pressure release, at engine oil pressure beyond pre-
If pressure limiting assembly action make machine oil from going out oil pocket I or going out oil pocket II and carry out reflux pressure letdown during value.
Further, described oil suction chamber includes oil suction chamber I and oil suction chamber II, described oil suction chamber I and oil suction chamber II
Separate and all connect with oil sump；Described oil suction chamber II connects with going out oil pocket II, described pressure limiting assembly
Including being located at oil suction chamber II and the pressure limiting spool of II connectivity part that goes out oil pocket, at engine oil pressure beyond the preset value time limit
Pressure valve core action also makes machine oil be back to oil suction chamber II from going out oil pocket II.
Further, described pressure limiting assembly also includes pressure limiting plug screw and pressure limiting spring, and described pressure limiting spring housing is in limit
Outside pressure plug screw and in the way of producing pretightning force, pressure limiting spool is resisted against the connection of main oil gallery and oil return opening
Place.
Further, this engine oil pump of internal combustion engine also includes the pump cover being removably connected with described pump case,
Described pump cover pressing also seals described seal groove.
Further, described pump case is provided with the connecting hole for being connected with pump cover, and described connecting hole is all provided with
Outside at seal groove.
Further, this engine oil pump of internal combustion engine also includes internal rotor and outer rotor, and described internal rotor is inclined with outer rotor
The heart arranges and forms some chamber volume by conjugation tooth engagement, and described pump case correspondence internal rotor disengages with outer rotor
Engagement place arranges oil suction chamber I, corresponding internal rotor enters engagement place with outer rotor and arranges out oil pocket I.
Further, described internal rotor is provided with nine external tooths, and outer rotor is provided with ten internal tooths.
Beneficial effects of the present invention: the engine oil pump of internal combustion engine of the present invention, its pump case is provided be specifically designed to close
The seal groove of envelope oil suction chamber, seal groove can be by oil sealing, water seal or arrange the modes such as sealing ring and effectively prevent
Only air is inhaled in oil suction chamber, it is to avoid engine oil pressure is not enough and machine oil foamed, it is ensured that machine oil the most defeated
Send and lubricating quality, so that the overall performance of internal combustion engine is strengthened, extend internal combustion engine service life, carry
High energy-saving effect.
Accompanying drawing explanation
The invention will be further described with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Fig. 1 is the structural representation of the present invention, as shown in the figure: the engine oil pump of internal combustion engine of the present embodiment, including
It is provided with the pump case 1 of oil suction chamber, described pump case 1 is additionally provided with the seal groove 2 for sealing described oil suction chamber；Should
Engine oil pump of internal combustion engine also includes the pump cover 3 being removably connected, described pump cover 3 with described pump case 1
Pressing also seals described seal groove 2；Seal groove 2 preferably passes through casting；Special use it is provided with on pump case 1
In being sealed into the seal groove 2 of oil pocket, seal groove 2 can be by oil sealing, water seal or arrange the modes such as sealing ring and have
Effect air is prevented to be inhaled in oil suction chamber, it is to avoid engine oil pressure is not enough and machine oil foamed, it is ensured that machine oil
Smooth delivery of power and lubricating quality, so that the overall performance of internal combustion engine is strengthened, extend internal combustion engine and use the longevity
Life, raising energy-saving effect.
In the present embodiment, described pump case 1 is additionally provided with oil-out 4 and fuel-displaced with what described oil-out 4 connected
Chamber I 51, described seal groove 2 for described go out oil pocket I 51 communicate by filling up high-pressure oil to realize oil
The oil groove sealed；Oil groove by filling machine oil so that oil suction chamber isolation air, its good airproof performance, it is possible to effectively
Isolation air；Machine oil is transported to the lubricant housings of internal combustion engine by oil-out 4；Go out oil pocket I 51 for pumping machine
The high-pressure area of oil；Use this structure can realize in the self sealss of engine oil pump of internal combustion engine, i.e. seal groove 2 every
Medium absolutely is the lubrication oil in internal-combustion engine system, and fuel feeding is carried out with sealing simultaneously, does not exist because using sealing
The wear problem enclosed and bring, high-pressure oil makes the minimal clearance between pump case 1 and pump cover 3 end face up, seals
Effect is notable.
In the present embodiment, described pump case 1 is additionally provided with go out that oil pocket I 51 is connected go out oil pocket II 52, institute
State the two ends of seal groove 2 respectively with described go out oil pocket I 51 and described go out oil pocket II 52 communicate and by described enter
Oil pocket is included in wherein；The one end open of seal groove 2 is positioned at oil pocket I 51, other end opening is positioned at fuel-displaced
Chamber II 52, formed connect oil pocket I 51 with go out oil pocket II 52 passage；Going out oil pocket II 52 can be oil pocket
The part of I 51, it is also possible to independent of going out oil pocket I 51, the going out oil pocket I 51 and go out oil pocket II of the present embodiment
It is provided with the locating piece for positioning oil suction mechanism between 52, in locating piece, is communicated with out oil pocket I 51 and goes out
The duct of oil pocket II 52；Contain and refer to that seal groove 2 has the part being set up in parallel outside oil suction chamber, with entirely
Face isolation air.
In the present embodiment, this engine oil pump of internal combustion engine also includes the pressure limiting assembly 7 for pressure release, surpasses at engine oil pressure
Pressure limiting assembly 7 action make machine oil from going out oil pocket I 51 or going out oil pocket II 52 and reflux when going out preset value
Pressure release；Utilize pressure limiting assembly 7 to set a pressure limiting to this engine oil pump of internal combustion engine, surpass when going out oil pocket I 51 pressure
When going out preset value, the bascule of pressure limiting assembly 7 automatically opens up, and plays the effect of automatic overflow pressure release, keeps away
Exempt from the phenomenon occurring damaging the oil duct adnexaes such as oil gauge, oil pipe, sealing member owing to pumping out hypertonia.
In the present embodiment, described oil suction chamber includes oil suction chamber I 61 and oil suction chamber II 62, described oil suction chamber I 61
And oil suction chamber II 62 is separate and all connects with oil sump；Described oil suction chamber II 62 connects with going out oil pocket II 52
Logical, described pressure limiting assembly 7 includes being located at oil suction chamber II 62 and the pressure limiting spool of II 52 connectivity parts that go out oil pocket,
Engine oil pressure is beyond pressure limiting valve core action during preset value and makes machine oil be back to oil suction chamber II from going out oil pocket II 52
62；Oil suction chamber II 62 is exclusively used in oil return, it is to avoid interfere with oil suction chamber I 61；In the present embodiment, described
Pressure limiting assembly 7 also includes pressure limiting plug screw and pressure limiting spring, described pressure limiting spring housing outside pressure limiting plug screw and with
Pressure limiting spool is resisted against the connectivity part of main oil gallery and oil return opening by the mode producing pretightning force.
In the present embodiment, described pump case 1 is provided with the connecting hole 11 for being connected with pump cover 3, described
Connecting hole 11 is each provided at the outside of seal groove 2；Corresponding connecting hole 11, connector 8 it also is provided with on pump cover 3
Through connecting hole 11, pump case 1 is fixed together with pump cover 3；Connector 8 is preferably fastening bolt, just with
Dismounting, replacing, now connecting hole 11 is screw；Connecting hole 11 is each provided at the outside of seal groove 2, is protecting
The sealing to seal groove 2 is realized on the basis of holding pump case 1 cramped construction；Connecting hole 11 is preferably six, and
And any three connecting holes 11 all can form triangle joint structure, strengthen and connect tightness.
In the present embodiment, this engine oil pump of internal combustion engine also includes internal rotor 91 and outer rotor 92, described internal rotor
91 engages the some chamber volume of formation with outer rotor 92 eccentric setting and by conjugation tooth, and described pump case 1 is corresponding interior
Rotor 91 arranges oil suction chamber I 61, corresponding internal rotor 91 and outer rotor 92 with outer rotor 92 place of being disengaged
Enter engagement place and oil pocket I 51 is set out；This engine oil pump of internal combustion engine uses rotator type structure, has overall dimensions
The advantages such as little, lightweight, oil suction vacuum is big, fuel feeding uniformity is good, are particularly well-suited to medium and small internal combustion
Machine；Internal rotor 91 is provided with for the round square hole in I. C. engine crankshaft or camshaft that is in transmission connection；Preferably,
Internal rotor 91 and outer rotor 92 are eccentric structure, and the profile of they work surfaces is a pair conjugate curves,
Neither interfere when engaging each other and do not depart from.
In the present embodiment, described internal rotor 91 is provided with nine external tooths, and outer rotor 92 is provided with ten internal tooths；Adopt
Using this structure, can produce the chamber volume of ten circulation change, fuel delivery is big, and fuel feeding is uniform, it is possible to meet into
The requirement of gas internal combustion engine operating pressure.
Finally illustrate, above example only in order to technical scheme to be described and unrestricted, although
With reference to preferred embodiment, the present invention is described in detail, it will be understood by those within the art that,
Technical scheme can be modified or equivalent, without deviating from technical solution of the present invention
Objective and scope, it all should be contained in the middle of scope of the presently claimed invention.
Claims (7)
1. an engine oil pump of internal combustion engine, including the pump case being provided with oil suction chamber, it is characterised in that: on described pump case
It is additionally provided with the seal groove for sealing described oil suction chamber；Oil-out and fuel-displaced with described it is additionally provided with on described pump case
Mouthful connection go out oil pocket I, described seal groove be with described go out oil pocket I communicate by fill up high-pressure oil with
Realize oil-tightening oil groove；Be additionally provided with on described pump case with go out that oil pocket I is connected go out oil pocket II, described close
The two ends of sealing groove respectively with described go out oil pocket I and described go out oil pocket II communicate and described oil suction chamber be included in
Wherein；This engine oil pump of internal combustion engine also includes the pump cover being removably connected with described pump case, described
Pump cover pressing also seals described seal groove.
Engine oil pump of internal combustion engine the most according to claim 1, it is characterised in that: this engine oil pump of internal combustion engine is also
Including the pressure limiting assembly for pressure release, the pressure limiting assembly action make machine oil when engine oil pressure is beyond preset value
From going out oil pocket I or going out oil pocket II and carry out reflux pressure letdown.
Engine oil pump of internal combustion engine the most according to claim 2, it is characterised in that: described oil suction chamber include into
Oil pocket I and oil suction chamber II, described oil suction chamber I and oil suction chamber II are separate and all connect with oil sump；
Described oil suction chamber II connects with going out oil pocket II, and described pressure limiting assembly includes being located at oil suction chamber II and goes out oil pocket II even
The pressure limiting spool at logical place, the pressure limiting valve core action make machine oil from going out oil pocket when engine oil pressure is beyond preset value
II is back to oil suction chamber II.
Engine oil pump of internal combustion engine the most according to claim 3, it is characterised in that: described pressure limiting assembly also wraps
Including pressure limiting plug screw and pressure limiting spring, described pressure limiting spring housing is outside pressure limiting plug screw and to produce the side of pretightning force
Pressure limiting spool is resisted against the connectivity part of main oil gallery and oil return opening by formula.
Engine oil pump of internal combustion engine the most according to claim 4, it is characterised in that: described pump case is provided with use
In the connecting hole being connected with pump cover, described connecting hole is each provided at the outside of seal groove.
Engine oil pump of internal combustion engine the most according to claim 5, it is characterised in that: this engine oil pump of internal combustion engine is also
Including internal rotor and outer rotor, if described internal rotor and outer rotor eccentric setting engage formation by conjugation tooth
Dry chamber volume, described pump case correspondence internal rotor arrange with the outer rotor place of being disengaged oil suction chamber I, corresponding interior turn
Son and outer rotor enter engagement place and arrange out oil pocket I.
Engine oil pump of internal combustion engine the most according to claim 6, it is characterised in that: described internal rotor is provided with nine
Individual external tooth, outer rotor is provided with ten internal tooths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410755598.5A CN104482385B (en) | 2014-12-10 | 2014-12-10 | Engine oil pump of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410755598.5A CN104482385B (en) | 2014-12-10 | 2014-12-10 | Engine oil pump of internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104482385A CN104482385A (en) | 2015-04-01 |
| CN104482385B true CN104482385B (en) | 2016-09-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410755598.5A Active CN104482385B (en) | 2014-12-10 | 2014-12-10 | Engine oil pump of internal combustion engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN104482385B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627073A (en) * | 2016-03-21 | 2016-06-01 | 奇瑞汽车股份有限公司 | Rotor oil pump |
| CN105864620B (en) * | 2016-05-18 | 2017-11-24 | 宁波圣龙汽车动力***股份有限公司 | Three-stage becomes displacement oil pump |
| CN113944530A (en) * | 2021-08-30 | 2022-01-18 | 东风汽车集团股份有限公司 | Double-cavity two-stage oil pressure control oil pump |
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|---|---|---|---|---|
| DE19747786A1 (en) * | 1996-12-16 | 1998-06-18 | Schwaebische Huettenwerke Gmbh | Internal rotor gear oil pump |
| CN2775347Y (en) * | 2005-03-22 | 2006-04-26 | 沈阳新光华晨汽车发动机有限公司 | Machine oil pump |
| CN201125865Y (en) * | 2007-12-11 | 2008-10-01 | 沈阳新光华晨汽车发动机有限公司 | Engine oil pump cap |
| CN101509488A (en) * | 2008-10-30 | 2009-08-19 | 傅松权 | Oil distributing tray with pressure equilibrium chamber |
| CN201416541Y (en) * | 2009-05-15 | 2010-03-03 | 上海幸福摩托车有限公司 | Eccentric rotor type oil pump |
| CN102748087A (en) * | 2012-06-14 | 2012-10-24 | 东风朝阳朝柴动力有限公司 | Fuel pump system integrated with engine body |
| CN203321613U (en) * | 2013-04-28 | 2013-12-04 | 重庆小康工业集团股份有限公司 | Rotor type oil pump of internal combustion engine |
| CN203743802U (en) * | 2014-02-24 | 2014-07-30 | 北京汽车动力总成有限公司 | Oil pump assembly |
-
2014
- 2014-12-10 CN CN201410755598.5A patent/CN104482385B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19747786A1 (en) * | 1996-12-16 | 1998-06-18 | Schwaebische Huettenwerke Gmbh | Internal rotor gear oil pump |
| CN2775347Y (en) * | 2005-03-22 | 2006-04-26 | 沈阳新光华晨汽车发动机有限公司 | Machine oil pump |
| CN201125865Y (en) * | 2007-12-11 | 2008-10-01 | 沈阳新光华晨汽车发动机有限公司 | Engine oil pump cap |
| CN101509488A (en) * | 2008-10-30 | 2009-08-19 | 傅松权 | Oil distributing tray with pressure equilibrium chamber |
| CN201416541Y (en) * | 2009-05-15 | 2010-03-03 | 上海幸福摩托车有限公司 | Eccentric rotor type oil pump |
| CN102748087A (en) * | 2012-06-14 | 2012-10-24 | 东风朝阳朝柴动力有限公司 | Fuel pump system integrated with engine body |
| CN203321613U (en) * | 2013-04-28 | 2013-12-04 | 重庆小康工业集团股份有限公司 | Rotor type oil pump of internal combustion engine |
| CN203743802U (en) * | 2014-02-24 | 2014-07-30 | 北京汽车动力总成有限公司 | Oil pump assembly |
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| Publication number | Publication date |
|---|---|
| CN104482385A (en) | 2015-04-01 |
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Effective date of registration: 20180418 Address after: 400032 Chongqing Shapingba wellhead Industrial Park Patentee after: Chongqing yuan Huaihai Power Co. Ltd. Address before: 400033 Jinqiao Road, Shapingba District, Chongqing, 61-1 Patentee before: Chongqing Xiaokang Industry Group Co., Ltd. |
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