CN108167180A - A kind of lubricating oil pump and engine - Google Patents
A kind of lubricating oil pump and engine Download PDFInfo
- Publication number
- CN108167180A CN108167180A CN201711460786.5A CN201711460786A CN108167180A CN 108167180 A CN108167180 A CN 108167180A CN 201711460786 A CN201711460786 A CN 201711460786A CN 108167180 A CN108167180 A CN 108167180A
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- Prior art keywords
- trough
- oil
- pump
- lubricating oil
- repairing slot
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
- F01M2001/0207—Pressure lubrication using lubricating pumps characterised by the type of pump
- F01M2001/0238—Rotary pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The invention belongs to engine fittings fields, disclose a kind of lubricating oil pump and engine, lubricating oil pump includes the pump housing and pump cover that are connected with each other, and two transmission shafts on the pump housing and pump cover, oil inlet is provided on the pump housing, the pump cover is equipped with oil outlet, it is characterized in that, the pump housing includes being communicated in the first high-pressure trough of oil outlet and is communicated in the first trough of oil inlet, the both sides of first high-pressure trough are communicated with the first oil unloading trough, the both sides of first trough are communicated with the first repairing slot, first oil unloading trough and the first repairing slot can cover at least part region between the tooth root and tooth top of the gear relative to the projection of the gear on the transmission shaft.The present invention can effectively reduce or even avoid the generation of " pocketed oil " and " evacuation " phenomenon by setting the first repairing slot and the first oil unloading trough, improve the working performance and service life of lubricating oil pump, reduce noise, improve its volumetric efficiency.
Description
Technical field
The present invention relates to engine fittings technical field more particularly to a kind of lubricating oil pump and engines.
Background technology
Existing lubricating oil pump is at runtime there is " pocketed oil " and " evacuation " phenomenon, specifically, " pocketed oil " phenomenon refers to machine
Dead volume is generated during operation of oil pump, dead volume size changes, and fluid can not be discharged or be sucked." evacuation " phenomenon is
Refer to high-speed rotating lubricating oil pump, the fluid between tooth socket produces larger centrifugal force, and fluid is got rid of to tooth top and pump housing tooth cavity
At inner surface, wherein some is lost in by the gap between movement parts in lubricating oil pump, existing so as to occur evacuating in gear root
As.Whether " pocketed oil " phenomenon or " evacuation " phenomenon can cause lubricating oil pump working performance and service life serious influence, and
And it be easy to cause and larger noise is generated in Meshing Process of Spur Gear.Therefore, it is necessary to a kind of lubricating oil pump that can be solved the above problems.
Invention content
The purpose of the present invention is to provide a kind of lubricating oil pump and engine, can efficiently reduce or even avoid " pocketed oil " with
And the generation of " evacuation " phenomenon, the working performance and service life of lubricating oil pump are improved, reduces noise, improves its volume effect
Rate.
For this purpose, the present invention uses following technical scheme：
A kind of lubricating oil pump, the pump housing and pump cover including interconnection and two on the pump housing and pump cover
Transmission shaft is provided with oil inlet on the pump housing, and the pump cover is equipped with oil outlet, and the pump housing includes being communicated in oil outlet
First high-pressure trough and the first trough for being communicated in oil inlet, the both sides of first high-pressure trough are communicated with the first oil unloading trough, institute
The both sides for stating the first trough are communicated with the first repairing slot, and first oil unloading trough and the first repairing slot are relative to the transmission shaft
On the projection of gear can cover at least part region between the tooth root and tooth top of the gear.
Preferably, first high-pressure trough and the first trough are separated by the first partition portion, the first partition portion
Width be not less than the gear transverse tooth thickness.
Preferably, two the first axis holes passed through for the transmission shaft, each first axis hole are offered on the pump housing
Both sides respectively be equipped with first oil unloading trough and the first repairing slot, the first partition portion is located at two the first axis holes
Between.
Preferably, first oil unloading trough and the first repairing slot are arc groove, and first oil unloading trough and
The center of circle of the first repairing slot is set to close to the direction in the first axis hole center of circle.
Preferably, the center of circle and the first emptying with the first axis hole both sides respectively by same first axis hole
In the sector region that slot and tangent two straight lines of the first repairing slot are formed, residing for the first oil unloading trough and/or the first repairing slot
Sector region cover at least three teeth of the gear.
Preferably, the pump cover includes the second high of high pressure chest is oppositely arranged and be collectively formed with first high-pressure trough
Indent and the second trough that low pressure chamber is oppositely arranged and be collectively formed with first trough, second high-pressure trough
Both sides be equipped with the second oil unloading trough, the both sides of second trough are equipped with the second repairing slot, second oil unloading trough and second
Repairing slot can cover between the tooth root and tooth top of the gear at least relative to the projection of the gear on the transmission shaft
A part of region.
Preferably, second high-pressure trough and the second trough are separated by the second partition portion, the second partition portion
Width and the first partition portion it is of same size.
Preferably, two the second axis holes passed through for the transmission shaft, each second axis hole are offered on the pump cover
Both sides respectively be equipped with second oil unloading trough and the second repairing slot.
Preferably, the shape size of second oil unloading trough is identical with the shape size of first oil unloading trough.
Preferably, the shape size of the second repairing slot is identical with the shape size of the first repairing slot.
Preferably, the pump housing is cast using aluminium, the pump cover is cast using iron material.
The present invention also provides a kind of engine, including above-mentioned lubricating oil pump.
Beneficial effects of the present invention：
By setting the first repairing slot on the pump housing, to its repairing, can be reduced even when the gear of lubricating oil pump is rotated
Lubricating oil pump is avoided " evacuation " phenomenon occur, while improves the volumetric efficiency of lubricating oil pump.
By setting the first oil unloading trough on the pump housing, it can reduce or even avoid lubricating oil pump " pocketed oil " phenomenon occur, simultaneously
Reduce the noise generated during machine oil pump operation.
By setting the second repairing slot on pump cover, match, can further avoid with the first repairing slot of the pump housing
There is " evacuation " phenomenon in lubricating oil pump.
By setting the second oil unloading trough on pump cover, match, can further avoid with the first oil unloading trough of the pump housing
There is " pocketed oil " phenomenon in lubricating oil pump.
Description of the drawings
Fig. 1 is the overall structure diagram of lubricating oil pump of the present invention；
Fig. 2 is the structure diagram that lubricating oil pump of the present invention does not show pump cover；
Fig. 3 is the structure diagram of the pump housing of lubricating oil pump of the present invention；
Fig. 4 is the structure diagram of the pump cover of lubricating oil pump of the present invention.
In figure：
1st, the pump housing；11st, oil inlet；12nd, the first high-pressure trough；13rd, the first trough；14th, the first oil unloading trough；15th, it first mends
Oil groove；16th, the first partition portion；17th, the first axis hole；18th, the first straight slot；
2nd, pump cover；21st, oil outlet；22nd, the second high-pressure trough；23rd, the second trough；24th, the second oil unloading trough；25th, it second mends
Oil groove；26th, the second partition portion；27th, the second axis hole；28th, the second straight slot；
3rd, transmission shaft；4th, gear.
Specific embodiment
Technical solution to further illustrate the present invention below with reference to the accompanying drawings and specific embodiments.
The present invention provides a kind of lubricating oil pump, and as depicted in figs. 1 and 2, which includes the pump housing 1 to connect and pump cover 2,
It wears two transmission shafts 3 on the pump housing 1 and pump cover 2 and is fixed on two transmission shafts 3 and pitch wheel
4, side is equipped with low pressure chamber in the both sides of above-mentioned two gear 4, and opposite side is equipped with high pressure chest, is provided with and is communicated on the pump housing 1
The oil inlet 11 of above-mentioned low pressure chamber, is provided with the oil outlet 21 for being communicated in above-mentioned high pressure chest in pump cover 2, machine oil through oil inlet 11 into
It after entering low pressure chamber, by the engagement rotation of two gears 4, is transported in high pressure chest, and finally pumps out machine oil through oil outlet 21
Pump.
In the present embodiment, as shown in figure 3, being opened up on the above-mentioned pump housing 1 there are two the first axis hole 17, in two the first axis holes 17
Bushing (not shown) is inside both provided with, one end of above-mentioned two transmission shaft 3 is respectively threaded through in a bushing, and transmission shaft 3
It is clearance fit with the bushing.
The first high-pressure trough 12 for being communicated in oil outlet 21 and the first low pressure for being communicated in oil inlet 11 are provided on the pump housing 1
Slot 13, wherein the both sides connection of the first high-pressure trough 12 is provided with the first oil unloading trough 14, the both sides connection of the first trough 13
The first repairing slot 15 is provided with, and one of them first oil unloading trough 14 and the first repairing slot 15 set up first axis hole wherein separately
17 both sides, another first oil unloading trough 14 and the first repairing slot 15 set up separately in the both sides of another the first axis hole 17.It is logical
The setting of above-mentioned first oil unloading trough 14 is crossed, can reduce or even avoid lubricating oil pump " pocketed oil " phenomenon occur, while reduce machine oil
The noise generated during pump operation.It, can be when the gear 4 of lubricating oil pump rotates, from gear 4 by the setting of the first repairing slot 15
Endface is engaged between two gears 4 carries out repairing in formed chamber, reduce and lubricating oil pump is even avoided " evacuation " occur
Phenomenon, while improve the volumetric efficiency of lubricating oil pump.
In the present embodiment, it should be noted that above-mentioned first oil unloading trough, 14 and first repairing slot 15 relative to gear 4 throwing
Shadow can cover at least part region between the tooth root and tooth top of gear 4, that is to say, that each gear 4 of the present embodiment
The teeth of both sides have part that can be overlapped with above-mentioned first oil unloading trough, 14 and first repairing slot 15, and then realize emptying and benefit
Oil.And in order to enable the lubricating oil pump normal operation of the present embodiment, the width of above-mentioned first oil unloading trough, 14 and first repairing slot 15
It is not greater than the whole depth of gear 4.
In the present embodiment, above-mentioned first oil unloading trough, 14 and first repairing slot 15 is arc groove, and 14 He of the first oil unloading trough
The center of circle of first repairing slot 15 is set to close to the direction in 17 center of circle of the first axis hole.Preferably, above-mentioned first oil unloading trough, 14 He
The center of circle of first repairing slot 15 and the center of circle of the first axis hole 17 are arranged concentrically.By above-mentioned set-up mode, it can ensure 4 turns of gear
When dynamic, the first oil unloading trough 14 can realize emptying, " pocketed oil " phenomenon be avoided to occur, while the first repairing slot 15 can realize benefit
Oil avoids lubricating oil pump " evacuation " phenomenon from occurring.
In the present embodiment, referring to Fig. 3, the center of circle and with 17 both sides of the first axis hole respectively by same first axis hole 17
In the sector region that one oil unloading trough 14 and tangent two straight lines of the first repairing slot 15 are formed, the first oil unloading trough 14 and/or
At least three teeth of sector region (region for being is marked in Fig. 2) the covering gear 4 residing for one repairing slot 15.By covering tooth
Wheel 4 at least three teeth, during can ensureing 4 engagement rotation of gear, always all can organic oil mended by the first repairing slot 15
It is charged between two gears 4, to avoid there is " evacuation " phenomenon, and the volumetric efficiency of lubricating oil pump can be effectively improved.Simultaneously
Also it can ensure that the machine oil between two gears 4 can continuously buffering be expelled to high pressure chest by the first oil unloading trough 14, to prevent
There is " pocketed oil " phenomenon, while reduce the noise generated during machine oil pump operation.
In the present embodiment, the depth of above-mentioned first oil unloading trough 14 is less than the depth of the first high-pressure trough 12, the first repairing slot 15
Depth be less than the first trough 13 depth, specifically, the depth of the first high-pressure trough 12 and the first trough 13 can be set
For 5mm-7mm, the depth of the first oil unloading trough 14 and the first repairing slot 15 is set as 1mm-2mm.
It should be noted that the present embodiment be provided between above-mentioned first high-pressure trough, 12 and first trough 13 first every
Disconnected portion 16, this is stated the first partition portion 16 between two the first axis holes 17, for high pressure chest and low pressure chamber to be separated, is avoided low
The machine oil of pressure chamber enters directly into high pressure chest.The width in above-mentioned first partition portion 16 is not less than the transverse tooth thickness of gear 4, can ensure pair
Low pressure chamber and the stability of high pressure chest partition improve the performance of lubricating oil pump.The first partition portion is preferably used in the present embodiment
16 width is equal to the transverse tooth thickness of gear 4.
In the present embodiment, the first axis hole of above-mentioned two 17 is connected by the first straight slot 18 with the first high-pressure trough 12, is passed through
First straight slot 18 enables to the machine oil in high pressure chest to enter in the first axis hole 17, and then to being threaded through the first axis hole 17
Interior transmission shaft 3 is lubricated.
Fig. 4 is can refer to, is opened up on above-mentioned pump cover 2 there are two the second axis hole 27, is both provided in two the second axis holes 27
Bushing (not shown), one end that above-mentioned two transmission shaft 3 does not wear the first axis hole 17 are respectively threaded through in a bushing, and are passed
Moving axis 3 is clearance fit with the bushing.
The second high-pressure trough 22 for being communicated in oil outlet 21 and the second low pressure for being communicated in oil inlet 11 are provided on pump cover 2
Slot 23, second high-pressure trough, 22 and first high-pressure trough 12 is corresponding and above-mentioned high pressure chest is collectively formed, the second trough 23 and
One trough 13 is corresponding and low pressure chamber is collectively formed.
In the both sides of above-mentioned second high-pressure trough 22, connection is provided with the second oil unloading trough 24, the both sides company of the second trough 23
Logical is provided with the second repairing slot 25, and one of them second oil unloading trough 24 and the second repairing slot 25 set up one second wherein separately
The both sides of axis hole 27, another second oil unloading trough 24 and the second repairing slot 25 set up separately the two of another the second axis hole 27
Side.By setting the second oil unloading trough 24 on pump cover 2, it can reduce or even avoid lubricating oil pump " pocketed oil " phenomenon occur, drop simultaneously
The noise generated during low machine oil pump operation.By the setting of the second repairing slot 25, can when the gear 4 of lubricating oil pump rotates,
It is engaged between two gears 4 from the endface of gear 4 and repairing is carried out in formed chamber, reduced and even machine oil is avoided to pump out
Existing " evacuation " phenomenon, while improve the volumetric efficiency of lubricating oil pump.
Further, above-mentioned second oil unloading trough 24 of the present embodiment is set, and the second oil unloading trough relatively with the first oil unloading trough 14
The shape size of 24 shape size and the first oil unloading trough 14 is identical.Pass through the mutual of the second oil unloading trough 24 and the first oil unloading trough 14
Cooperation enables to the indoor machine oil of chamber that engagement is formed between two gears 4 to be unloaded respectively from the first oil unloading trough 14 and second
High pressure chest is flowed at oil groove 24, and then improves the transfer efficiency of machine oil, and can preferably avoid the generation of " pocketed oil " phenomenon.
Likewise, the above-mentioned second repairing slot 25 of the present embodiment is set, and the second repairing slot relatively with the first repairing slot 15
The shape size of 25 shape size and the first repairing slot 15 is identical.Two endfaces up and down of gear 4 is enabled to can
It is engaged in formed chamber between two gears 4 and carries out repairing, the efficiency of repairing can be improved, and then preferably avoid
" evacuation " phenomenon occurs.
In the present embodiment, above-mentioned second oil unloading trough, 24 and second repairing slot 25 can be covered relative to the projection of gear 4
At least part region between the tooth root and tooth top of gear 4.That is, the tooth of the both sides of each gear 4 of the present embodiment is equal
There is part that can be overlapped with above-mentioned second oil unloading trough, 24 and second repairing slot 25, and then realize emptying and repairing.And in order to
So that the lubricating oil pump normal operation of the present embodiment, the width of above-mentioned second oil unloading trough, 24 and second repairing slot 25 are not greater than gear
4 whole depth.
In the present embodiment, the depth of above-mentioned second high-pressure trough, 22 and second trough 23 could be provided as 5mm-7mm, and second
The depth of 24 and second repairing slot 25 of oil unloading trough is set as 1mm-2mm.
Fig. 4 is can refer to, the present embodiment is provided with the second partition between above-mentioned second high-pressure trough, 22 and second trough 23
Portion 26, this is stated the second partition portion 26 between two the second axis holes 27, for high pressure chest and low pressure chamber to be separated, is avoided low pressure
The machine oil of chamber enters directly into high pressure chest.The width in above-mentioned second partition portion 26 is not less than the transverse tooth thickness of gear 4, can ensure to low
The stability of chamber and high pressure chest partition is pressed, improves the performance of lubricating oil pump.Preferably, the above-mentioned second partition portion of the present embodiment
26 width and the first partition portion 16 it is of same size.
In the present embodiment, two the second axis holes 27 on pump cover 2 are connected by the second straight slot 28 with the second high-pressure trough 22,
By second straight slot 28, the machine oil in high pressure chest is enabled to enter in the second axis hole 27, and then to being threaded through the second axis
Transmission shaft 3 in hole 27 is lubricated.
As preferred technical solution, the above-mentioned pump housing 1 of the present embodiment is cast using aluminium, and above-mentioned pump cover 2 uses
Iron material is cast.Compared to lubricating oil pump of the prior art using whole cast iron molding or the molding side of monoblock cast aluminium
Formula, using cast aluminium forming, pump cover 2 is molded the pump housing 1 of the present embodiment using cast iron, can take into account the spy of lightweight and high intensity
Point, i.e. quality also have high intensity while mitigation, can improve the reliability of lubricating oil pump.
The present invention also provides a kind of engines, including above-mentioned lubricating oil pump, are pumped by said engine oil, can effectively improve hair
The service life of motivation.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating example of the present invention, and it is pair to be not
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (12)
1. a kind of lubricating oil pump, the pump housing (1) and pump cover (2) including interconnection and mounted on the pump housing (1) and pump cover
(2) two transmission shafts (3) on, oil inlet (11) is provided on the pump housing (1), and the pump cover (2) is equipped with oil outlet
(21), which is characterized in that the pump housing (1) is including being communicated in the first high-pressure trough (12) of oil outlet (21) and being communicated in oil inlet
(11) the first trough (13), the both sides of first high-pressure trough (12) are communicated with the first oil unloading trough (14), and described first is low
The both sides of indent (13) are communicated with the first repairing slot (15), and first oil unloading trough (14) and the first repairing slot (15) are relative to institute
At least part between the tooth root and tooth top of the gear (4) can be covered by stating the projection of the gear (4) on transmission shaft (3)
Region.
2. lubricating oil pump according to claim 1, which is characterized in that first high-pressure trough (12) and the first trough (13)
Separated by the first partition portion (16), the width of the first partition portion (16) is not less than the transverse tooth thickness of the gear (4).
3. lubricating oil pump according to claim 2, which is characterized in that offered on the pump housing (1) for the transmission shaft (3)
Two the first axis holes (17) passed through, the both sides of each first axis hole (17) are respectively equipped with first oil unloading trough (14) and institute
The first repairing slot (15) is stated, the first partition portion (16) is between two the first axis holes (17).
4. lubricating oil pump according to claim 3, which is characterized in that first oil unloading trough (14) and the first repairing slot
(15) it is arc groove, and the center of circle of first oil unloading trough (14) and the first repairing slot (15) is to close to described first
The direction setting in axis hole (17) center of circle.
5. lubricating oil pump according to claim 4, which is characterized in that pass through the center of circle of same first axis hole (17) and divide
Two straight lines tangent with the first oil unloading trough (14) of the first axis hole (17) both sides and the first repairing slot (15) are not formed
Sector region in, sector region residing for the first oil unloading trough (14) and/or the first repairing slot (15) covers the gear (4)
At least three teeth.
6. according to any lubricating oil pump of claim 1-5, which is characterized in that the pump cover (2) including with it is described first high
Indent (12) is oppositely arranged and the second high-pressure trough (22) of high pressure chest is collectively formed and opposite with first trough (13)
The second trough (23) of low pressure chamber is set and is collectively formed, the both sides of second high-pressure trough (22) are equipped with the second oil unloading trough
(24), the both sides of second trough (23) are equipped with the second repairing slot (25), second oil unloading trough (24) and the second repairing
Slot (25) relative to the projection of the gear (4) on the transmission shaft (3) can cover the tooth root of the gear (4) and tooth top it
Between at least part region.
7. lubricating oil pump according to claim 6, which is characterized in that second high-pressure trough (22) and the second trough (23)
Separated by the second partition portion (26), the width of the second partition portion (26) and the width phase of the first partition portion (16)
Together.
8. lubricating oil pump according to claim 6, which is characterized in that offered on the pump cover (2) for the transmission shaft (3)
Two the second axis holes (27) passed through, the both sides of each second axis hole (27) are respectively equipped with second oil unloading trough (24) and institute
State the second repairing slot (25).
9. lubricating oil pump according to claim 6, which is characterized in that the shape size of second oil unloading trough (24) and described
The shape size of first oil unloading trough (14) is identical.
10. lubricating oil pump according to claim 6, which is characterized in that the shape size of the second repairing slot (25) and institute
The shape size for stating the first repairing slot (15) is identical.
11. lubricating oil pump according to claim 1, which is characterized in that the pump housing (1) is cast using aluminium, described
Pump cover (2) is cast using iron material.
12. a kind of engine, which is characterized in that including any lubricating oil pump of claim 1-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711460786.5A CN108167180B (en) | 2017-12-28 | 2017-12-28 | A kind of lubricating oil pump and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711460786.5A CN108167180B (en) | 2017-12-28 | 2017-12-28 | A kind of lubricating oil pump and engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108167180A true CN108167180A (en) | 2018-06-15 |
| CN108167180B CN108167180B (en) | 2019-07-05 |
Family
ID=62519110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711460786.5A Active CN108167180B (en) | 2017-12-28 | 2017-12-28 | A kind of lubricating oil pump and engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN108167180B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606482A (en) * | 2021-08-06 | 2021-11-05 | 湖南机油泵股份有限公司 | Gear type oil pump capable of optimizing cavitation |
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| JPS63277878A (en) * | 1987-05-07 | 1988-11-15 | Kayaba Ind Co Ltd | Gear pump |
| JPH04325785A (en) * | 1991-04-23 | 1992-11-16 | Shimadzu Corp | Gear pump |
| CN2359496Y (en) * | 1998-09-02 | 2000-01-19 | 合肥长源液压件股份有限公司 | Bidirection rotary gear oil pump |
| CN202250816U (en) * | 2011-09-14 | 2012-05-30 | 无锡市东方液压件制造有限公司 | Internal-releasing type two-way oil compensation two-way oil return unloading gear oil pump |
| CN204851631U (en) * | 2015-05-29 | 2015-12-09 | 重庆红宇精密工业有限责任公司 | A oil pump for vehicle automatic gearbox |
| CN205243836U (en) * | 2015-12-29 | 2016-05-18 | 阜新恒百达机械有限公司 | Compensation structure in superminiature high -pressure gear pump |
-
2017
- 2017-12-28 CN CN201711460786.5A patent/CN108167180B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63277878A (en) * | 1987-05-07 | 1988-11-15 | Kayaba Ind Co Ltd | Gear pump |
| JPH04325785A (en) * | 1991-04-23 | 1992-11-16 | Shimadzu Corp | Gear pump |
| CN2359496Y (en) * | 1998-09-02 | 2000-01-19 | 合肥长源液压件股份有限公司 | Bidirection rotary gear oil pump |
| CN202250816U (en) * | 2011-09-14 | 2012-05-30 | 无锡市东方液压件制造有限公司 | Internal-releasing type two-way oil compensation two-way oil return unloading gear oil pump |
| CN204851631U (en) * | 2015-05-29 | 2015-12-09 | 重庆红宇精密工业有限责任公司 | A oil pump for vehicle automatic gearbox |
| CN205243836U (en) * | 2015-12-29 | 2016-05-18 | 阜新恒百达机械有限公司 | Compensation structure in superminiature high -pressure gear pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606482A (en) * | 2021-08-06 | 2021-11-05 | 湖南机油泵股份有限公司 | Gear type oil pump capable of optimizing cavitation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108167180B (en) | 2019-07-05 |
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