CN109000139A - Rotor engine oil pump - Google Patents
Rotor engine oil pump Download PDFInfo
- Publication number
- CN109000139A CN109000139A CN201810888186.7A CN201810888186A CN109000139A CN 109000139 A CN109000139 A CN 109000139A CN 201810888186 A CN201810888186 A CN 201810888186A CN 109000139 A CN109000139 A CN 109000139A
- Authority
- CN
- China
- Prior art keywords
- pump
- rotor
- oil
- outer rotor
- limiting valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000010705 motor oil Substances 0.000 title claims abstract description 37
- 239000003921 oil Substances 0.000 claims abstract description 81
- 238000005461 lubrication Methods 0.000 claims description 9
- 230000001788 irregular Effects 0.000 claims description 5
- 239000010687 lubricating oil Substances 0.000 abstract description 42
- 239000010721 machine oil Substances 0.000 abstract description 31
- 206010037660 Pyrexia Diseases 0.000 abstract description 8
- 230000006835 compression Effects 0.000 abstract description 7
- 238000007906 compression Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 206010020852 Hypertonia Diseases 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N13/20—Rotary pumps
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses rotor engine oil pumps, belong to machine oil pump technical field.The lubricating oil pump includes: the pump housing, pump cover, internal rotor and outer rotor.Pump cover lid closes on the pump housing, and cavity is offered in the pump housing, and outer rotor is set on internal rotor and is installed in the cavity by pump shaft.The oil inlet and outlet communicated with cavity is offered on the pump housing.The pump housing end face opposite with internal rotor, outer rotor offers the first compensating groove, and the pump cover end face opposite with internal rotor, outer rotor offers the second compensating groove, the first compensating groove and the second compensating groove for releasing the pocketed oil between internal rotor and outer rotor.When internal rotor and outer rotor rotate, machine oil between internal rotor and outer rotor is squeezed, and when the pressure in lubricating oil pump rises, pocketed oil is flowed into from the first compensating groove of two sides and the second compensating groove, disperse in lubricating oil pump to alleviate the pressure in lubricating oil pump by the machine oil of compression fever.
Description
Technical field
The invention belongs to machine oil pump technical fields, in particular to rotor engine oil pump.
Background technique
Lubricating oil pump is one of essential tool in engine lubrication system, and existing lubricating oil pump is mainly rotor machine oil
It pumps and two kinds of gear-type oil pump, wherein rotor engine oil pump is more common in production.
The rotor engine oil pump that the relevant technologies provide mainly includes the pump housing, pump cover, internal rotor and outer rotor.The conjunction of pump cover lid is pumping
On body, outer rotor is set on internal rotor and is placed in the pump housing, the rotation by internal rotor and outer rotor relative to the pump housing, by machine oil
Out of oil inlet indentation lubricating oil pump, then extruding from the oil outlet of lubricating oil pump is engine oil.
Inventor has found that the relevant technologies at least have following technical problem:
The lubricating oil pump that the relevant technologies provide when internal rotor and outer rotor rotate, machine oil between internal rotor and outer rotor by
To extruding, the pocketed oil being squeezed can not be discharged in time, cause machine oil pump pressure excessively high, and machine oil appearance pulsation, oil pump shaft are curved
The problems such as bent.
Summary of the invention
The embodiment of the invention provides a kind of rotor engine oil pumps, can solve above-mentioned technical problem.Specific technical solution is as follows:
A kind of rotor engine oil pump, the rotor engine oil pump include: the pump housing, pump cover, internal rotor and outer rotor；
The pump cover lid closes on the pump housing, and cavity is offered in the pump housing, and the outer rotor is set in described
On rotor, and in the cavity by pump shaft installation；
The oil inlet and outlet communicated with the cavity is offered on the pump housing；
The pump housing end face opposite with the internal rotor, the outer rotor offer for by the internal rotor with it is described
The first compensating groove that pocketed oil between outer rotor releases, the pump cover end face opposite with the internal rotor, the outer rotor are opened
Equipped with the second compensating groove for releasing the pocketed oil between the internal rotor and the outer rotor.
Optionally, the rotor engine oil pump further includes the pressure limiting valve being connected to the oil outlet；
The pressure limiting valve includes pressure limiting valve plunger, pressure limiting valve blanking cover, elastomeric element, the pressure limiting valve blanking cover and the elasticity
Component connection is placed in the pressure limiting valve plunger；
The oil leak hole being connected to the oil inlet is additionally provided in the middle part of the pressure limiting valve.
Optionally, the pressure limiting valve plunger is equipped with chamfering structure towards the end of the oil outlet.
Optionally, the pressure limiting valve plunger, which is equipped with, holds dirty slot.
Optionally, offer lubrication groove on the end face of the pump cover, the pump shaft by the lubrication groove with it is described fuel-displaced
Mouth connection.
Optionally, the quantity of first compensating groove is 1-2；The quantity of second compensating groove is 1-2.
Optionally, first compensating groove and second compensating groove are the groove of irregular shape or the slope in gradual change section
Face slot.
Optionally, the pump housing is detachably connected with the pump cover by fastener.
Optionally, the first bolt hole is offered on the pump housing, is offered on the pump cover and on the pump housing described
The quantity of compatible second bolt hole of one bolt hole, first bolt hole and second bolt hole is 5-8.
Technical solution provided in an embodiment of the present invention has the benefit that by the pump housing and internal rotor, outer rotor
Opposite end face offers the first compensating groove for releasing the pocketed oil between the internal rotor and the outer rotor, is pumping
The end face opposite with internal rotor, outer rotor is covered, is offered for releasing the pocketed oil between the internal rotor and the outer rotor
The second compensating groove, when internal rotor and outer rotor rotate, the machine oil between internal rotor and outer rotor is squeezed, in lubricating oil pump
Pressure when rising, first compensating groove and second off-load of the pocketed oil from two sides between internal rotor and outer rotor by compression fever
Slot flows into, and has dispersed in lubricating oil pump the pressure in lubricating oil pump to be alleviated, to solve in lubricating oil pump by the machine oil of compression fever
Lead to the hypertonia in lubricating oil pump since the pocketed oil between internal rotor and outer rotor does not have leakage channel, arteries and veins occurs in machine oil
It is dynamic, the problems such as oil pump bending shaft.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the structural schematic diagram of rotor engine oil pump provided in an embodiment of the present invention；
Fig. 2 is the top view of rotor engine oil pump provided in an embodiment of the present invention；
Fig. 3 is Section A-A schematic diagram in rotor engine oil pump Fig. 2 provided in an embodiment of the present invention；
Fig. 4 is section B-B schematic diagram in rotor engine oil pump Fig. 2 provided in an embodiment of the present invention；
Fig. 5 is C-C schematic cross-section in rotor engine oil pump Fig. 2 provided in an embodiment of the present invention；
Fig. 6 is D-D schematic cross-section in rotor engine oil pump Fig. 2 provided in an embodiment of the present invention；
Fig. 7 is the enlarged diagram of part A in rotor engine oil pump Fig. 4 provided in an embodiment of the present invention；
Fig. 8 is the enlarged diagram of the part D in rotor engine oil pump Fig. 6 provided in an embodiment of the present invention；
Fig. 9 is the enlarged diagram of C portion in rotor engine oil pump Fig. 5 provided in an embodiment of the present invention.
Appended drawing reference respectively indicates:
The 1- pump housing,
The first compensating groove of 101-,
The second compensating groove of 102-,
2- pump cover,
3- internal rotor,
4- outer rotor,
5- pump shaft,
6- oil inlet,
7- oil outlet,
8- pressure limiting valve,
9- holds dirty slot,
10- lubrication groove,
11- fastener,
12- chamfering structure.
Specific embodiment
Unless otherwise defined, all technical terms used in the embodiment of the present invention all have usual with those skilled in the art
The identical meaning understood.To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to this hair
Bright embodiment is described in further detail.
The embodiment of the invention provides rotor engine oil pumps, such as attached drawing 1, attached drawing 2, attached drawing 3, attached drawing 4, attached drawing 6,7 and of attached drawing
Shown in attached drawing 8, which includes: the pump housing 1, pump cover 2, internal rotor 3 and outer rotor 4.
The lid of pump cover 2 closes on the pump housing 1, cavity is offered in the pump housing 1, outer rotor 3 is set on internal rotor 4 and passes through pump shaft
5 is within the cavity.The oil inlet 6 and oil outlet 7 communicated with cavity is offered on the pump housing 1.
The pump housing 1 and the opposite end face of internal rotor 3, outer rotor 4 are offered for will be tired between internal rotor 3 and outer rotor 4
The first compensating groove 101 that oil releases, the end face opposite with internal rotor 3, outer rotor 4 of pump cover 2 are offered for by internal rotor 3 and outside
The second compensating groove 102 that pocketed oil between rotor 4 releases.
Rotor engine oil pump provided in an embodiment of the present invention, such as attached drawing 1, attached drawing 3, attached drawing 4,8 institute of attached drawing 6, attached drawing 7 and attached drawing
Show, the rotation by internal rotor 3, outer rotor 4 relative to the pump housing 1, oil sucting cavity and pressure are formd between internal rotor 3 and outer rotor 4
When oil pocket, internal rotor 3 and outer rotor 4 rotate, machine oil is pressed into lubricating oil pump by the oil sucting cavity of formation from oil inlet 6, the pressure of formation
Machine oil is extruded lubricating oil pump from oil outlet by oil pocket.By the end face opposite with internal rotor, outer rotor 4 in the pump housing 1, offers and be used for
The first compensating groove 101 that pocketed oil between the internal rotor and the outer rotor is released, in pump cover 2 and internal rotor 3, outer rotor
4 opposite end faces offer the second compensating groove 102 for releasing the pocketed oil between the internal rotor and the outer rotor,
When internal rotor 3 and outer rotor 4 rotate, the machine oil between internal rotor 3 and outer rotor 4 is squeezed, in the pressure in lubricating oil pump
When rising, the pocketed oil between internal rotor 3 and outer rotor 4 by compression fever is from the first compensating groove 101 of two sides and the second compensating groove
102 flow into, and have dispersed in lubricating oil pump the pressure in lubricating oil pump to be alleviated, to solve lubricating oil pump by the machine oil of compression fever
The interior pocketed oil due between internal rotor 3 and outer rotor 4 does not have leakage channel and leads to the hypertonia in lubricating oil pump, and machine oil occurs
The problems such as pulsation, oil pump bending shaft.
Optionally, the quantity of the first compensating groove 101 opened up on the pump housing 1 is 1-2, exemplary, can be 1,2
Deng.The quantity of the second compensating groove 102 on pump cover 2 is 1-2, exemplary, can be 1,2 etc..
Optionally, the first compensating groove 101 and the second compensating groove 102 are the groove of irregular shape or the slope surface in gradual change section
Slot.The angle of groove or slope surface slot can be selected according to the actual conditions of lubricating oil pump.
First compensating groove 101 is provided with the end face opposite with internal rotor 3, outer rotor 4 of the pump housing 1, the shape of the first compensating groove 101
Shape can be the groove of square, cylinder, rectangle, irregular ellipse, taper etc. or the slope surface slot in gradual change section,
That is, can achieve the purpose that accommodate the pocketed oil for being extruded fever between internal rotor 3 and outer rotor 4.
Second compensating groove 102 is provided with the end face opposite with internal rotor 3, outer rotor 4 of pump cover 2, the shape of the first compensating groove 101
Shape can be the groove of square, cylinder, rectangle, irregular ellipse, taper etc. or the slope surface slot in gradual change section,
That is, can achieve the purpose that accommodate the pocketed oil for being extruded fever between internal rotor 3 and outer rotor 4.
The internal rotor 3 of rotor engine oil pump tooth fewer than outer rotor 4, outer rotor 4 is set on internal rotor 3, when interior turn
When son 3 is rotated with outer rotor 4, it is formed oil sucting cavity and pumping cavity between internal rotor 3 and outer rotor 4,
It is understood that internal rotor 3 drives outer rotor 4 to rotate to the same direction, internal rotor 3 when machine oil pump work
The inside engaged gear that can be regarded as an a pair of only poor tooth with outer rotor 4 is driven.No matter internal rotor 3 is gone to outer rotor 4 is appointed
What angle always has contact, when internal rotor 3 and outer rotor 4 rotate, by the machine in suction pump between internal rotor 3 and the tooth of outer rotor 4
Oil has been cut into a plurality of cavities, and since internal rotor 3 and outer rotor 4 are disengaged from, volume is gradually increased for the cavity of oil input channel side,
Vacuum degree is generated, machine oil is inhaled into cavity.Internal rotor 3 is continued to rotate with outer rotor 4, and machine oil is carried over into the one of oil outlet 7
Side, at this moment internal rotor 3 enters with the gear of outer rotor 4 and engages, and the volume of oil pocket is gradually reduced, and engine oil pressure increases and from interior turn
Gear between son 3 and outer rotor 4 is forced into oil outlet 7.
When internal rotor 3 and outer rotor 4 rotate, the machine oil between 4 gear of internal rotor 3 and outer rotor is acutely squeezed
Pressure, the high-pressure oil acutely squeezed is not due to having leakage channel, and the compressibility of machine oil is small, makes machine oil pump pressure sharply
Rise.This high-pressure oil being squeezed can make lubricating oil pump pump shaft 5 bend, wear, and make internal rotor 3 and outer rotor 4
Gear shifting quadrant texturing, and impacted in transmission system.Meanwhile the gear and pump shaft 5 of internal rotor 3 and outer rotor 4 are by very big
Radial force impact, causes the power loss of lubricating oil pump serious, and influence the stability and service life of lubricating oil pump.And turn when interior
When oil sucting cavity between son 3 and outer rotor 4 becomes smaller, pocketed oil area generates vacuum, makes the air for being dissolved in machine oil be separated from water out, draws
The uneven of flow is played, lubricating oil pump is made to generate vibration and noise.
By designing the first compensating groove 101 in the end face of the pump housing 1, the second compensating groove 102 is designed in the end face of pump cover 2, it will
Compression fever is squeezed between internal rotor 3 and outer rotor 4, the pocketed oil that cannot be discharged in time is from internal rotor 3 and 4 two sides of outer rotor
The first compensating groove 101 released with the second compensating groove 102, reduce the pressure between internal rotor 3 and outer rotor 4, avoid in
The gear stress deformation and abrasion of rotor 3 and outer rotor 4.Solving the pocketed oil between internal rotor 3 and outer rotor 4 can not release
The problem of, the pulse of lubricating oil pump is effectively reduced, keeps oil pressure more steady, while reducing the noise of lubricating oil pump, is mitigated
The vibration of lubricating oil pump.
Optionally, lubricating oil pump provided in an embodiment of the present invention further includes the pressure limiting valve 8 being arranged at 1 oil outlet 7 of the pump housing.Such as
Attached drawing 1, attached drawing 5, shown in attached drawing 9, pressure limiting valve 8 includes pressure limiting valve plunger, pressure limiting valve blanking cover and elastomeric element.Pressure limiting valve blanking cover with
Elastomeric element connection is located in pressure limiting valve plunger.The oil leak hole being connected to oil inlet 6 is additionally provided in the middle part of pressure limiting valve 8.
The oil leak hole of relief valve 8 provided in an embodiment of the present invention is connected to the oil inlet 6 of the pump housing 1, the pressure limiting valve of relief valve 8
Blanking cover is connected to the oil outlet of the pump housing 1, and when the pressure of oil outlet 7 in the pump housing 1 is greater than the set value, machine oil will push and elastic portion
The pressure limiting valve blanking cover of part connection move to pressure limiting valve plunger body, when pressure limiting valve blanking cover is by oil leak hole, extra machine oil from
Oil leak hole is released, and oil inlet 6 is flowed into, and the machine oil newly entered reenters in lubricating oil pump together, reduces the pressure in lubricating oil pump
Power.Relief valve 8 is designed using internal drainage type, and the machine oil air content of engine can be effectively reduced, and improves engine reliability of operation.
Optionally, as shown in attached drawing 1, attached drawing 5 and attached drawing 9, the pressure limiting valve plunger of pressure limiting valve 8 is towards the end of oil outlet 7
Equipped with chamfering structure 12.
Optionally, pressure limiting valve plunger, which is equipped with, holds dirty slot 9.
When the oil pressure in lubricating oil pump reaches setting value, the relief valve blanking cover elasticity of compression component tune of relief valve 8 will push
The oil pressure in lubricating oil pump is saved, the impurity inside machine oil dirty can block up pressure limiting valve plunger, therefore in pressure limiting valve plunger and the lubricating oil pump pump housing 1
The surface of contact, which is equipped with, holds dirty slot 9, hold dirty slot 9 can effectively by inside machine oil impurity and dirt be received into dirt slot
It is interior, prevent the blocking of pressure limiting valve 8, clamping stagnation.Chamfering structure 12 is equipped with towards the end of oil outlet 7 in pressure limiting valve plunger, it is ensured that
The steady open and close of pressure limiting valve 8.Exemplary, the angle of the chamfering structure 12 and plunger top surface can be 15 ° -45 °.Such as
15 °, 20 °, 25 °, 26 °, 28 °, 30 °, 31 °, 32 °, 33 °, 34 °, 35 °, 40 °, 41 °, 42 °, 45 ° etc..
Optionally, as shown in attached drawing 4, attached drawing 6 and attached drawing 8, lubrication groove 10 is offered on the end face of pump cover 2, pump shaft 5 passes through
Lubrication groove 10 is connected to the oil outlet 7 of lubricating oil pump.The machine oil by oil outlet 7 that can be instant by lubrication groove 10 is introduced into pump shaft
On 5, force feed is carried out to 2 bearing hole of pump cover connecting on pump shaft 5 and pump cover 2 with pump shaft 5, reduces pump shaft 5 and pump
The abrasion of 2 upper bearing aperture of lid.
Optionally, the pump housing 1 is detachably connected with pump cover 2 by fastener 11.As shown in Fig. 1, exemplary, fastener 11
It can be positioning pin having an open structure, the lid of pump cover 2 is closed on the pump housing 1 after installing 1 inner part of the pump housing, passes through positioning pin
The pump housing 1 is connect with pump cover 2, guarantee the accurate positioning between the pump housing 1 and pump cover 2 and ensure that the stability of transmission system.
Optionally, as shown in attached drawing 1, attached drawing 2, attached drawing 3, attached drawing 5 and attached drawing 6, the first bolt hole is offered on the pump housing 1,
The second bolt hole compatible with 1 upper bolt hole of the pump housing is offered on pump cover 2, the quantity of the first bolt hole and the second bolt hole is equal
It is 5-8.It is exemplary, it can be 5-8, such as 5,6,7,8 etc..It is understood that the first bolt hole and
The position of two bolts hole can carry out reasonable Arrangement according to the shape of lubricating oil pump, to guarantee the leakproofness of lubricating oil pump.
Optionally, as shown in Figure 1 and Figure 2, in order to guarantee in lubricating oil pump enough pressure by oil delivery to starting
On machine, the sealed width between the pump housing 1 and pump cover 2 cannot be excessive, and excessive, the pressure that will lead in lubricating oil pump is inadequate, cannot be complete
At oil transportation operation.Sealed width between the pump housing 1 and pump cover 2 is 4-6mm.It is exemplary, it can be 4mm, 5mm, 6mm etc..
As shown in Figure 1 and Figure 2, oil inlet 6 reaches the mesh of liquid level in the control pump housing 1 by external oil trap
's.
Rotor engine oil pump provided in an embodiment of the present invention can reduce engine inner engine oil pressure fluctuation, can make lubricating oil pump
The frictional work loss of engine is effectively reduced in interior oil pressure held stationary, and use cost is low, noise, vibration and the sound of lubricating oil pump
Vibration roughness all shows well.
The foregoing is merely illustrative embodiments of the invention, the protection scope being not intended to limit the invention is all at this
Within the spirit and principle of invention, any modification, equivalent replacement, improvement and so on should be included in protection model of the invention
Within enclosing.
Claims (9)
1. a kind of rotor engine oil pump, which is characterized in that the rotor engine oil pump includes: the pump housing (1), pump cover (2), internal rotor (3)
With outer rotor (4)；
Pump cover (2) lid closes on the pump housing (1), offers cavity in the pump housing (1), the outer rotor (4) is arranged
It is located in the cavity on the internal rotor (3), and through pump shaft (5)；
The oil inlet (6) communicated with the cavity and oil outlet (7) are offered on the pump housing (1)；
The pump housing (1) and the opposite end face of the internal rotor (3), the outer rotor (4) are offered for by the internal rotor
(3) the first compensating groove (101) that the pocketed oil between the outer rotor (4) releases, the pump cover (2) and the internal rotor (3),
The opposite end face of the outer rotor (4) is offered for releasing the pocketed oil between the internal rotor (3) and the outer rotor (4)
The second compensating groove (102).
2. rotor engine oil pump according to claim 1, which is characterized in that the rotor engine oil pump further include with it is described fuel-displaced
The pressure limiting valve (8) of mouth (7) connection；
The pressure limiting valve (8) includes pressure limiting valve plunger, pressure limiting valve blanking cover and elastomeric element, the pressure limiting valve blanking cover and the elasticity
Component connection is placed in the pressure limiting valve plunger；
The oil leak hole being connected to the oil inlet (6) is additionally provided in the middle part of the pressure limiting valve (8).
3. rotor engine oil pump according to claim 2, which is characterized in that the pressure limiting valve plunger is towards the oil outlet
(7) end is equipped with chamfering structure (12).
4. rotor engine oil pump according to claim 2, which is characterized in that the pressure limiting valve plunger, which is equipped with, holds dirty slot (9).
5. rotor engine oil pump according to claim 1, which is characterized in that offer lubrication on the end face of the pump cover (2)
Slot (10), the pump shaft (5) are connected to by the lubrication groove (10) with the oil outlet (7).
6. rotor engine oil pump according to claim 1, which is characterized in that the quantity of first compensating groove (101) is 1-2
It is a；The quantity of second compensating groove (102) is 1-2.
7. rotor engine oil pump according to claim 6, which is characterized in that first compensating groove (101) and described second
Compensating groove (102) is the groove of irregular shape or the slope surface slot in gradual change section.
8. rotor engine oil pump according to claim 1, which is characterized in that the pump housing (1) and the pump cover (2) pass through tightly
Firmware (11) is detachably connected.
9. rotor engine oil pump according to claim 1, which is characterized in that the first bolt hole is offered on the pump housing (1),
The second bolt hole compatible with the first bolt hole described on the pump housing (1), first spiral shell are offered on the pump cover (2)
The quantity of keyhole and second bolt hole is 5-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810888186.7A CN109000139A (en) | 2018-08-06 | 2018-08-06 | Rotor engine oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810888186.7A CN109000139A (en) | 2018-08-06 | 2018-08-06 | Rotor engine oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109000139A true CN109000139A (en) | 2018-12-14 |
Family
ID=64595375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810888186.7A Pending CN109000139A (en) | 2018-08-06 | 2018-08-06 | Rotor engine oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109000139A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578269A (en) * | 2019-01-30 | 2019-04-05 | 安徽康明斯动力有限公司 | A kind of engine rotor engine oil pump structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205904A (en) * | 2007-07-25 | 2008-06-25 | 邵建勋 | Eccentric cover for cycloidal inner/outer rotor pump |
| CN201416541Y (en) * | 2009-05-15 | 2010-03-03 | 上海幸福摩托车有限公司 | Eccentric rotor type oil pump |
| CN103939173A (en) * | 2014-04-14 | 2014-07-23 | 奇瑞汽车股份有限公司 | Oil pump for engine |
| CN204402869U (en) * | 2014-12-01 | 2015-06-17 | 长春一东离合器股份有限公司 | For the cooling oil pump of wet clutch |
| CN205155526U (en) * | 2015-11-30 | 2016-04-13 | 长城汽车股份有限公司 | Engine lubrication system and crescent gear pump thereof |
| CN105627073A (en) * | 2016-03-21 | 2016-06-01 | 奇瑞汽车股份有限公司 | Rotor oil pump |
| CN107355666A (en) * | 2017-09-09 | 2017-11-17 | 湖南机油泵股份有限公司 | A kind of birotor lubricating oil pump |
-
2018
- 2018-08-06 CN CN201810888186.7A patent/CN109000139A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205904A (en) * | 2007-07-25 | 2008-06-25 | 邵建勋 | Eccentric cover for cycloidal inner/outer rotor pump |
| CN201416541Y (en) * | 2009-05-15 | 2010-03-03 | 上海幸福摩托车有限公司 | Eccentric rotor type oil pump |
| CN103939173A (en) * | 2014-04-14 | 2014-07-23 | 奇瑞汽车股份有限公司 | Oil pump for engine |
| CN204402869U (en) * | 2014-12-01 | 2015-06-17 | 长春一东离合器股份有限公司 | For the cooling oil pump of wet clutch |
| CN205155526U (en) * | 2015-11-30 | 2016-04-13 | 长城汽车股份有限公司 | Engine lubrication system and crescent gear pump thereof |
| CN105627073A (en) * | 2016-03-21 | 2016-06-01 | 奇瑞汽车股份有限公司 | Rotor oil pump |
| CN107355666A (en) * | 2017-09-09 | 2017-11-17 | 湖南机油泵股份有限公司 | A kind of birotor lubricating oil pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578269A (en) * | 2019-01-30 | 2019-04-05 | 安徽康明斯动力有限公司 | A kind of engine rotor engine oil pump structure |
| CN109578269B (en) * | 2019-01-30 | 2023-09-08 | 安徽康明斯动力有限公司 | Engine rotor oil pump structure |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181214 |
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| RJ01 | Rejection of invention patent application after publication |