CN106762616B - mechanical two-stage variable displacement oil pump - Google Patents
mechanical two-stage variable displacement oil pump Download PDFInfo
- Publication number
- CN106762616B CN106762616B CN201611181931.1A CN201611181931A CN106762616B CN 106762616 B CN106762616 B CN 106762616B CN 201611181931 A CN201611181931 A CN 201611181931A CN 106762616 B CN106762616 B CN 106762616B
- Authority
- CN
- China
- Prior art keywords
- oil
- feedback
- oil pocket
- spool
- 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.)
- Expired - Fee Related
Links
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
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/356—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
-
- 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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
-
- 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
- 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
Abstract
The invention discloses a kind of mechanical two-stage variable displacement oil pumps, eccentric hoop, eccentric hoop spring, feedback oil circuit including shell, in shell and feedback oil pocket one, machine oil in the feedback oil pocket one can act on the eccentric hoop, and two fuel feed hole of feedback oil pocket of a feedback oil pocket two and one connection feedback oil pocket two is additionally provided on shell；Machine oil in feedback oil pocket two can also act on the eccentric hoop, and whether enter the cylindrical control valve in feedback oil pocket two with a control machine oil；The upper table face closure for controlling valve core, inside sets valve core spring；It controls valve core lower surface to open, and connects a U-shaped limit cover board, the lower surface of cover board is equipped with a cover board oil leak hole.The present invention realizes that machine oil pumpage is adjusted, achievees the effect that energy-saving and emission-reduction by the way that control valve is arranged.The present invention is also equipped with following advantages simultaneously：The advantages such as variable governing response speed is fast, and reliability is high, and experiment and production cost are low.
Description
Technical field
The present invention relates to engine arts, and in particular to a kind of mechanical two-stage variable displacement oil pump.
Background technology
Energy-saving and emission-reduction be Hyundai Motor development trend, kernel component of the lubricating oil pump as engine lubrication system,
The improvement of the reliability and energy consumption of work can greatly promote the economy of engine.
Under the prior art, the flow control of machine oil is by automatically controlled, due to the flow of the machine oil rotating speed different in engine
Lower demand is different, in engine by idling to rated speed when, can not ensure the optimum oil feeding under an equilibrium state,
Fuel delivery when engine speed reaches a certain particular value can only be set, therefore, the area of setting value is raised or lowered in rotating speed
In, electric control valve can only give a maximum fuel delivery to meet engine speed requirement, cause machine oil waste.
Prior art principle：Lubricating oil pump in fuel feeding is acted on eccentric hoop by machine oil, and eccentric hoop rotates to control
Oil inlet quantity usually sets a feedback oil pocket one in shell, enter feedback oil pocket one by the oil fed back in oil circuit, then act on
On eccentric hoop, oil inlet quantity is controlled by feeding back the oil pressure size of oil circuit, such control method with engine speed raising,
Oil inlet quantity endlessly increases, but when engine speed reaches a certain particular value, the machine oil demand of engine is simultaneously not required to
It is so big, therefore can cause to waste.
Invention content
For deficiency in the prior art, the present invention provides a kind of mechanical two-stage variable displacement oil pump.
Eccentric hoop, eccentric hoop spring, feedback oil circuit including shell, in shell and feedback oil pocket one, it is described anti-
Machine oil in feedback oil pocket one can act on the eccentric hoop, which is characterized in that a feedback oil pocket two is additionally provided on the shell
And one connection it is described feedback oil pocket two two fuel feed hole of feedback oil pocket；Machine oil in the feedback oil pocket two can also act on institute
Eccentric hoop is stated, and whether enters the cylindrical control valve in the feedback oil pocket two with a control machine oil；The control valve valve
The upper table face closure of core, spool is interior to be equipped with a valve core spring, and the valve core spring can be compressed when the spool moves down；Institute
It states control valve core lower surface to open, and connects a U-shaped limit cover board, the limit cover board supports the spool, cover board
Upper surface is fixedly connected with the casing, and the lower surface of cover board is equipped with a cover board oil leak hole.
Preferably, the control valve spool face is set there are two annular groove, and two annular grooves constitute oil circuits one and oil circuit two, in shape
The hole of connection valve core inside there are two being set in annular groove at oil circuit two, respectively spool oil leak hole and feedback two oil leak hole of oil pocket；
Machine oil in the feedback oil circuit can act on the surface of the spool and flow slowly into oil circuit one and oil circuit two；Valve core spring
In its natural state, the machine oil in the oil circuit one can be connected to the feedback oil pocket by two fuel feed hole of feedback oil pocket
Two；Under compression, the oil circuit two is connected to the valve core spring with two oil leak hole of feedback oil pocket, the feedback oil pocket
Two inner engine oils can flow into valve core inside by feeding back two oil leak hole of oil pocket and spool oil leak hole, and pass through spool lower part and cover board
Oil leak hole is flow to outside spool successively.
The present invention proposes a kind of mechanical two-stage variable displacement oil pump, by shell setting feedback oil pocket two with
And the control valve of the feedback oil pocket two is controlled, it realizes that machine oil pumpage is adjusted, achievees the effect that energy-saving and emission-reduction.The present invention is gone back simultaneously
Has following advantages：The advantages such as variable governing response speed is fast, and reliability is high, and experiment and production cost are low.
Description of the drawings
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.
Valve is installed on the location drawing in lubricating oil pump to Fig. 1 in order to control；
Fig. 2 is that lubricating oil pump removes the front view that shell is left behind after pump case；
Fig. 3 is the enlarged drawing of part A in Fig. 1, the cooperation installation diagram of part A valve and a shell part in order to control, wherein A
Valve core spring in part is in the raw；
Fig. 4 is that the valve core spring of part A is in the schematic diagram of compressive state.
Digital representation in figure：
1, shell 2, eccentric hoop 3, eccentric hoop spring 4, feedback oil circuit 5, feedback oil pocket one
6, spool 7, feedback oil pocket 28, valve core spring 9, limit cover board
10, cover board oil leak hole 11, oil circuit 1, oil circuit 2 13, spool oil leak hole
14, two oil leak hole 15 of feedback oil pocket, feedback two fuel feed hole of oil pocket.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes.
Shown in Fig. 1 to 4, including shell 1, the eccentric hoop in shell 1, eccentric hoop spring 3, feedback oil circuit 4 and anti-
Oil pocket 1 is presented, the machine oil in the feedback oil pocket 1 can act on the eccentric hoop 2, it is anti-that one is additionally provided on the shell 1
Present two fuel feed hole 15 of feedback oil pocket of the connection of the oil pocket 27 and one feedback oil pocket 27；Machine in the feedback oil pocket 27
Oil can also act on the eccentric hoop 3, and whether enter the cylindrical control in the feedback oil pocket 27 with a control machine oil
Valve；The upper table face closure of the control valve core 6, spool 6 is interior to be equipped with a valve core spring 8, and the spool 6 can when moving down
Compress the valve core spring 8；6 lower surface of control valve core opens, and connects a U-shaped limit cover board 9, the limit cover board
9 support the spool 6, and the upper surface of cover board 9 is fixedly connected with shell 1, and the lower surface of cover board 9 is equipped with a cover board oil leak hole
10。
6 surface of control valve core is set there are two annular groove, and two annular grooves constitute oil circuits 1 and oil circuit 2 12, in formation
Hole there are two being set in the annular groove of oil circuit 2 12 inside connection spool 6, respectively spool oil leak hole 13 and feedback two draining of oil pocket
Hole 14；Machine oil in the feedback oil circuit 4 can act on the surface of the spool 6 and flow slowly into oil circuit 1 and oil circuit two
12；In its natural state, the machine oil in the oil circuit 1 can be connected valve core spring 8 by two fuel feed hole 15 of feedback oil pocket
Lead to the feedback oil pocket 27；The valve core spring 8 under compression, the oil circuit 2 12 and two draining of feedback oil pocket
Hole connection 14,27 inner engine oil of feedback oil pocket can flow into valve by feeding back 27 oil leak hole 14 of oil pocket and spool oil leak hole 13
Inside core 6, and it is flow to successively outside spool 6 by 6 lower part of spool and cover board oil leak hole 10.
Implementation principle：This programme has when in use there are three step, can select oil inlet quantity according to engine different situations.
It should be pointed out that in the present solution, eccentric hoop 2 and eccentric hoop spring 3 in the raw when, machine oil oil inlet quantity
It is the largest.
Implementation steps：
1, for engine when idling to the slow-speed of revolution is run, feedback pressure oil (namely machine oil) part is by feeding back oil circuit
Then 4, which enter feedback oil pocket 1, acts on eccentric hoop 2；Another part is by the feedback oil circuit 4 of shell 1 with certain contact
Area acts on spool 6, and the power acted on spool 6 acts on the power on spool 6 less than 6 spring 8 of valve, and spool 6 is failure to actuate,
Oil circuit 1 on spool 6 is connected to two fuel feed hole 15 of feedback oil pocket on shell 1 (shown in Fig. 3), and feedback pressure oil passes through this
Oil circuit 1 enters feedback oil pocket 27.In turn, feedback pressure oil is acted on simultaneously by feeding back oil pocket 1, feeding back oil pocket 27
On eccentric hoop 2, the power on eccentric hoop 2 is acted on less than or equal to eccentric hoop spring 3 with joint efforts, eccentric hoop 2 is failure to actuate.This revolution area
Between, eccentricity persistently keeps maximum rating, machine oil pumpage persistently to keep maximum；
2, for engine when the slow-speed of revolution is run to middle revolution, feedback pressure oil is by the feedback oil circuit 4 of shell 1 with certain
Contact area acts on spool 6, and active force acts on the power on spool 6, spool 6 less than or equal to valve core spring 8 during this
It is failure to actuate, the oil circuit 1 on spool 6 is still connected to two fuel feed hole 15 of feedback oil pocket on shell 1 (shown in Fig. 3), feedback pressure
Power oil enters feedback oil pocket 27 by oil circuit 1 and feedback two fuel feed hole 15 of oil pocket.Feedback pressure oil is by feeding back oil pocket one
5, feedback oil pocket 27 acts on eccentric hoop 2 simultaneously, acts on the power on eccentric hoop 2 more than or equal to eccentric hoop spring 3 with joint efforts,
When initial, the power on eccentric hoop 2 is acted on equal to eccentric hoop spring 3 with joint efforts, as engine speed increases, feedback oil pressure power increases
Greatly, it will be greater than the active force of eccentric hoop spring 3 with joint efforts at this time, eccentric hoop 2 starts to act, and eccentricity reduces, machine oil pumpage drop
It is low, and new balance is established, until reaching the maximum revolution of this design number rotaring section (this process is homeostasis process).Herein
Number rotaring section, as engine speed increases, machine oil pumpage gradually adjusts the minimum value to design by the maximum value designed；
3, for engine when middle rotating speed to rated revolution is run, feedback pressure oil is by the feedback oil circuit 4 of shell 1 with certain
Contact area act on spool 6, this power of this process acts on power (the initial phase on spool 6 more than or equal to valve core spring 8
Deng), spool 6 is in critical condition, and as engine speed is promoted, after the micro promotion of feedback oil pressure, spool 6 starts to act, this
It carves feedback pressure oil and the contact area of spool 6 increases, realize that quick response, feedback pressure oil act on the pressure wink of spool 6
Between significantly act on power on spool 6 more than valve core spring 8, spool 6 rapidly action to lowest limit plane (such as Fig. 4 for limiting cover board 9
It is shown), spool 6 blocks feedback two fuel feed hole 15 of oil pocket, feedback pressure oil to stop entering feedback oil pocket 27 at this time, meanwhile, spool
Oil circuit 2 12 on 6 is connected to two oil leak hole 14 of feedback oil pocket on shell 1, and the pressure oil fed back in oil pocket 27 passes through feedback
Two oil leak hole 14 of oil pocket, oil circuit 2 12, spool oil leak hole 13,10 hole of limit cover board draining flow back into oil sump.Feedback pressure at this time
Power oil is only acted on by feeding back oil pocket 1 on eccentric hoop 2, and feedback pressure oil acts on the power moment on eccentric hoop 2 less than inclined
Thimble spring 3 acts on the power on eccentric hoop 2, and eccentric hoop 2 immediately begins to revert action, and eccentricity moment increases, and discharge capacity increases,
And establish new equalization point (transient state adjusting).Hereafter as engine speed increases, machine oil pumpage is gradually reduced new to establish
Balance, until engine speed is promoted to rated revolution (this process be homeostasis process).In this number rotaring section, when initial
Machine oil pumpage by minimum state transient rise to design requirement value, later as engine speed increases, machine oil pumpage by
It is decrescence small.
Various modifications to these embodiments will be apparent to those skilled in the art, herein
Defined General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.
Claims (1)
1. a kind of mechanical two-stage variable displacement oil pump, including it is shell, the eccentric hoop in shell, eccentric hoop spring, anti-
Oil circuit and feedback oil pocket one are presented, the machine oil in the feedback oil pocket one can act on the eccentric hoop, which is characterized in that institute
State two fuel feed hole of feedback oil pocket that a feedback oil pocket two and one connection feedback oil pocket two is additionally provided on shell；The feedback
Whether the machine oil in oil pocket two can also act on the eccentric hoop, and enter in the feedback oil pocket two with a control machine oil
Cylindrical control valve；The upper table face closure of the control valve core, spool is interior to be equipped with a valve core spring, and the spool moves down
When can compress the valve core spring；The control valve core lower surface opens, and connects a U-shaped limit cover board, the limit
Spool is stated in cover plate support residence, and the upper surface of cover board is fixedly connected with the casing, and the lower surface of cover board is equipped with a cover board oil leak hole；
The control valve spool face is set there are two annular groove, and two annular grooves respectively constitute oil circuit one and oil circuit two, in formation oil circuit
The hole of connection valve core inside there are two being set in two annular groove, respectively spool oil leak hole and feedback two oil leak hole of oil pocket；It is described anti-
Machine oil in feedback oil circuit can act on the surface of the spool and flow slowly into oil circuit one and oil circuit two；Valve core spring is in nature
Under state, the machine oil in the oil circuit one can be connected to the feedback oil pocket two by two fuel feed hole of feedback oil pocket；It is described
Under compression, the oil circuit two is connected to valve core spring with two oil leak hole of feedback oil pocket, machine in the feedback oil pocket two
Oil can flow into valve core inside by feeding back two oil leak hole of oil pocket and spool oil leak hole, and pass through spool lower part and cover board oil leak hole
It flow to outside spool successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611181931.1A CN106762616B (en) | 2016-12-20 | 2016-12-20 | mechanical two-stage variable displacement oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611181931.1A CN106762616B (en) | 2016-12-20 | 2016-12-20 | mechanical two-stage variable displacement oil pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106762616A CN106762616A (en) | 2017-05-31 |
| CN106762616B true CN106762616B (en) | 2018-10-12 |
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ID=58889483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611181931.1A Expired - Fee Related CN106762616B (en) | 2016-12-20 | 2016-12-20 | mechanical two-stage variable displacement oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106762616B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108716611A (en) * | 2018-07-24 | 2018-10-30 | 世特科汽车工程产品（常州）有限公司 | A kind of engine oil pump assembly of no relief valve |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012210899A1 (en) * | 2012-06-26 | 2014-01-02 | Mahle International Gmbh | Hydraulic conveyor and hydraulic system |
| CN103671093B (en) * | 2013-12-05 | 2016-03-09 | 宁波圣龙汽车动力系统股份有限公司 | A kind of variable displacement vane pump |
| CN105179912B (en) * | 2015-09-28 | 2019-01-18 | 湖南机油泵股份有限公司 | A kind of mechanical valve control second level change displacement oil pump |
| CN205154617U (en) * | 2015-11-04 | 2016-04-13 | 湖南机油泵股份有限公司 | Two step change discharge capacity blade pump control system of combination valve formula |
-
2016
- 2016-12-20 CN CN201611181931.1A patent/CN106762616B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN106762616A (en) | 2017-05-31 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181012 Termination date: 20201220 |