CN106051441B - A kind of output displacement can be changed duplex impeller pump and its control system - Google Patents
A kind of output displacement can be changed duplex impeller pump and its control system Download PDFInfo
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- CN106051441B CN106051441B CN201610625191.XA CN201610625191A CN106051441B CN 106051441 B CN106051441 B CN 106051441B CN 201610625191 A CN201610625191 A CN 201610625191A CN 106051441 B CN106051441 B CN 106051441B
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- mouthfuls
- partition board
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- 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
-
- 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
- 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
- F01M1/16—Controlling lubricant pressure or quantity
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
- F16H57/0436—Pumps
-
- 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
- F16N23/00—Special adaptations of check valves
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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
- F01M2001/0207—Pressure lubrication using lubricating pumps characterised by the type of pump
- F01M2001/0238—Rotary pumps
-
- 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
- F16N2210/00—Applications
- F16N2210/04—Vehicles
-
- 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
- F16N2210/00—Applications
- F16N2210/12—Gearings
-
- 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
- F16N2280/00—Valves
- F16N2280/02—Valves electromagnetically operated
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
The present invention provides a kind of output displacements can be changed duplex impeller pump, armature spindle, main pump, auxiliary pump including pump chamber and in pump chamber, partition board is equipped between the main pump and auxiliary pump, eccentric pivot hole and an oil-through-hole there are one being set on the partition board, the partition board separates the oil-discharging cavity of the oil-discharging cavity of main pump and auxiliary pump, and the oil suction chamber of the main pump and the oil suction chamber of auxiliary pump are then communicated by the oil-through-hole on partition board；The main pump includes main pump internal rotor and main pump outer rotor, and the auxiliary pump includes auxiliary pump internal rotor and auxiliary pump outer rotor.The present invention can be changed duplex impeller pump for this output displacement and provide a kind of control system simultaneously.In above-mentioned technical proposal, it is divided into major-minor two pumps, main pump to continue fuel feeding by partition board, auxiliary pump selects fuel feeding or oil extraction by control valve, when main pump meets engine or gear box oil pump, auxiliary pump is run in lower oil-pressure direct back into oil pocket, realizes that the discharge capacity of impeller pump is controllably and energy saving.
Description
Technical field
The present invention relates to internal combustion engine or speed changing box lubricating system technical field, especially a kind of internal combustion engine or transmission system
Controllable duplex impeller pump and its control system.
Background technology
With automotive energy-saving emission-reducing consciousness continuous improvement and automobile emission regulation it is increasingly strict, variable capacity oil pump exists
Application in engine lubrication system and transmission system becomes increasingly popular, and includes mainly three types：By changing eccentric realize
Become the sliding-vane pump of discharge capacity（It is pumped including sliding）, the gear pump of change discharge capacity is realized by changing length of action, passes through oil inlet and outlet section
Stream realizes the impeller pump of variable-flow.The stroking mechanism of wherein sliding-vane pump is more complicated, while stator reduces oil for floating structure
The reliability of pumping system, in big flow, there is a degree of performance and decline in low speed and high-speed working condition, especially high-power
Application on commercial vehicle engine is restricted.The stroking mechanism of gear pump is more complicated, cost higher, gross efficiency and response time
Etc. important performance indexes not as good as sliding-vane pump and impeller pump etc..The research for becoming discharge capacity impeller pump is carrying out always, but is not all formed
It effectively breaks through, thus can not achieve change discharge capacity truly, fuel-economizing income and economy are all restricted.
Invention content
The technical problem to be solved in the present invention is to provide a kind of output displacements simple in structure, that reliability is high can be changed duplex turn
Son pump and its control system.
In order to solve the above technical problems, the technical solution that the present invention can be changed duplex impeller pump about output displacement is：It is a kind of
Output displacement can be changed duplex impeller pump, including pump chamber and armature spindle, main pump, auxiliary pump in pump chamber, the main pump and pair
One piece of partition board is equipped between pump, the main pump and auxiliary pump are equipped with oil suction chamber and oil-discharging cavity, and the oil suction chamber of two of which pump is mutual
The oil-discharging cavity of connection, two pumps is then separated by partition board；The main pump includes main pump internal rotor and main pump outer rotor, the auxiliary pump packet
Include auxiliary pump internal rotor and auxiliary pump outer rotor.
The duplex impeller pump that above-mentioned technical proposal provides drives two sets simultaneously in a pump chamber by a roots rotor axis
Rotor pair, and be divided into major-minor two pumps by one piece of partition board, partition board make the oil-discharging cavity of main pump and auxiliary pump be in separate state, and
Oil suction chamber is but in communicating state.The duplex impeller pump output displacement of this structure is variable and simple and compact for structure.
In one embodiment, the partition board is generally round, is set on the partition board there are one eccentric pivot hole, the partition board
On in the side of eccentric pivot hole be additionally provided with an oil-through-hole, the partition board separates the oil-discharging cavity of the oil-discharging cavity of main pump and auxiliary pump,
The oil suction chamber of the main pump and the oil suction chamber of auxiliary pump are then communicated by the oil-through-hole on partition board.
Further, it is additionally provided with a through-hole in the other side of eccentric pivot hole on the partition board, one is equipped in the through-hole
The block rocker piece mutually chimeric with the through-hole, the rocker piece can move axially in through-holes under the action of oil pressure.This knot
Structure can there are one cushioning effects to the oil pressure of oil-discharging cavity.
Preferably, the shape of the oil-through-hole on the partition board and through-hole is crescent, and the shape of the rocker piece is also
Crescent.
The present invention is about the technical solution of control system：A kind of output displacement can be changed the control system of duplex impeller pump,
Including duplex impeller pump, main oil gallery, pump discharge, main control valve；The main control valve includes valve pocket, spool and spring, the valve
Chamber, the control chamber are connect by pipeline with main oil gallery or pump discharge in order to control for one end of set, and the other end of the valve pocket is bullet
The both ends of spring chamber, the spool can be moved respectively by the effect of oil pressure and spring force in valve pocket, and A is additionally provided on the valve pocket
Mouthful, B mouthfuls, C mouthfuls；The duplex impeller pump includes pump chamber and armature spindle, main pump, auxiliary pump in pump chamber, the main pump and
One piece of partition board is equipped between auxiliary pump, the main pump and auxiliary pump are equipped with oil suction chamber and oil-discharging cavity, and the oil suction chamber of two of which pump is mutual
It is connected, the oil-discharging cavity of two pumps is then separated by partition board；The main pump includes main pump internal rotor and main pump outer rotor, is turned in main pump
The main oil-discharging cavity that son generates when being operated with the rotor pair that main pump outer rotor is constituted passes through piping connection to pump discharge；The auxiliary pump packet
Include auxiliary pump internal rotor and auxiliary pump outer rotor, the secondary oil extraction that auxiliary pump internal rotor generates when being operated with the rotor pair that auxiliary pump outer rotor is constituted
The B mouths that chamber passes through piping connection to main control valve；A mouths on the valve pocket are connected by pipeline with pump discharge, on the valve pocket
C mouths be connected with the oil suction chamber of main pump and auxiliary pump by pipeline, the circumferential surface of the spool is equipped with cricoid oil groove, is existed according to spool
Different location in valve pocket, main control valve be respectively at B mouthfuls communicated with A mouthfuls, B mouthfuls communicated simultaneously with A mouthfuls and C mouthfuls, B mouthfuls with C mouthfuls
It communicates, A mouthfuls of one kind communicated in four kinds of states with C mouthfuls.
In above-mentioned technical proposal, in a pump chamber, by a roots rotor axis simultaneously drive two sets of rotor pairs, and by every
Plate is divided into major-minor two pumps, main pump to continue fuel feeding, and auxiliary pump selects fuel feeding or oil extraction by control valve, when main pump meets engine
Or when gear box oil pump, auxiliary pump is run in lower oil-pressure direct back into oil pocket, realizes that the discharge capacity of impeller pump is controllably and energy saving.
Further, control system further includes pilot solenoid valve, and the pilot solenoid valve is located at the control chamber of main control valve
On pipeline between main oil gallery or pump discharge.It can be achieved with multistage variable displacement control in this way.
Wherein, when pilot solenoid valve is in OFF state, the control chamber of main control valve is in drain charge state, auxiliary pump oil extraction
The pressure oil of intracavitary enters pump discharge after B mouthfuls, A mouthfuls successively；When pump discharge pressure is excessively high, pilot solenoid valve obtains electric, main oil
The control chamber that road or pump discharge oil pressure enter main control valve through pilot solenoid valve pushes spool gradually to be moved to spring cavity, makes A mouthfuls
It progressively closes off, C mouthfuls are gradually opened, and the partial pressure oil in auxiliary pump oil-discharging cavity enters pump discharge after B mouthfuls, A mouthfuls successively, another
Partial pressure oil is back to the oil suction chamber of main pump and auxiliary pump after B mouthfuls, C mouthfuls successively；It completely closes, then beats completely for C mouthfuls when A mouthfuls
It opens, the pressure oil in auxiliary pump oil-discharging cavity is back to the oil suction chamber of main pump and auxiliary pump after B mouthfuls, C mouthfuls successively；Work as main oil gallery pressure
When continuing to increase, the control chamber that main oil gallery or pump discharge oil pressure enter main control valve through pilot solenoid valve pushes spool to continue to bullet
Spring chamber moves, and makes A mouthfuls to be communicated with C mouthfuls, B mouthfuls of closings, and the extra oil of pump discharge divides drain charge by A mouthfuls and C oral areas, forms overflow control
System.
Wherein, the circumferential surface of the main control valve spool is set there are two cricoid oil groove, and the spacer portion between two oil grooves is set
There are one through-holes.
Wherein, temperature, load and tach signal of the pilot solenoid valve detected by ECU determines goal pressure
Value, and control the spool position and opening/closing time of main control valve.
In one embodiment, the partition board is generally round, is set on the partition board there are one eccentric pivot hole, the partition board
On in the side of eccentric pivot hole be additionally provided with an oil-through-hole, the partition board separates the oil-discharging cavity of the oil-discharging cavity of main pump and auxiliary pump,
The oil suction chamber of the main pump and the oil suction chamber of auxiliary pump are then communicated by the oil-through-hole on partition board.
Further, it is additionally provided with a through-hole in the other side of eccentric pivot hole on the partition board, one is equipped in the through-hole
The block rocker piece mutually chimeric with the through-hole, the rocker piece can move axially in through-holes under the action of oil pressure.This knot
Structure can there are one cushioning effects to the oil pressure of oil-discharging cavity.
Preferably, the shape of the oil-through-hole on the partition board and through-hole is crescent, and the shape of the rocker piece is also
Crescent.
Description of the drawings
Fig. 1 is the structural schematic diagram of Example 1 and Example 2 of the present invention；
Fig. 2 is the structural schematic diagram of the embodiment of the present invention 3；
Fig. 3 is the diaphragm structure schematic diagram in present invention implementation 1-3；
Fig. 4 is the schematic cross-sectional view of line A-A in Fig. 3.
Reference numeral is：
1 --- pump chamber 2 --- armature spindle 3 --- main pump
4 --- auxiliary pump 5 --- partition board 6 --- main oil gallerys
7 --- pump discharge 8 --- main control valve 9 --- pilot valves
31 --- main pump internal rotor 32 --- main pump outer rotors
41 --- auxiliary pump internal rotor 42 --- auxiliary pump outer rotors
51 --- eccentric pivot hole 52 --- oil-through-hole 53 --- rocker pieces
81 --- A mouthfuls of spools 82 --- control chamber 83 ---
84 C mouthfuls of --- B mouths 85 ---.
Specific implementation mode
For the ease of the understanding of those skilled in the art, the present invention is made further with reference to embodiment and attached drawing
Bright, the content that embodiment refers to not is limitation of the invention.
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indicating or implies relative importance or implicitly indicate the quantity of indicated technical characteristic.In description of the invention
In, the meaning of " plurality " is two or more, unless otherwise specifically defined.In the description of the present invention, it needs
Illustrate, unless otherwise specified and limited, term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be
Mechanical connection or electrical connection, can also be the connection inside two elements, can be directly connected, can also pass through intermediary
It is indirectly connected, for the ordinary skill in the art, can understand the concrete meaning of the term as the case may be.
Embodiment 1
A kind of output displacement as shown in Fig. 1,3,4 can be changed duplex impeller pump, including pump chamber 1 and in pump chamber 1
Armature spindle 2, main pump 3, auxiliary pump 4, are equipped with one piece of circular bulkheads 5 between the main pump 3 and auxiliary pump 4, set on the partition board 5 there are one
Eccentric pivot hole 51 is additionally provided with an oil-through-hole 52 on the partition board 5 in the side of eccentric pivot hole 51, and the partition board 5 is by main pump 3
The oil-discharging cavity of oil-discharging cavity and auxiliary pump 4 separates, and the oil suction chamber of the main pump 3 and auxiliary pump 4 then passes through 52 phase of oil-through-hole on partition board 5
It is logical；The main pump 3 includes main pump internal rotor 31 and main pump outer rotor 32, and the auxiliary pump 4 includes outside auxiliary pump internal rotor 41 and auxiliary pump
Rotor 42.
As shown in Figure 3,4, it is additionally provided with a through-hole in the other side of eccentric pivot hole 51 on partition board 5, is equipped in the through-hole
One piece of rocker piece 53 mutually chimeric with the through-hole, the rocker piece 53 can move axially in through-holes under the action of oil pressure.
The shape of oil-through-hole 52 and through-hole on the partition board 5 is crescent, and the shape of the rocker piece 53 is also crescent.
Embodiment 2
As shown in Fig. 1,3,4, a kind of output displacement can be changed the control system of duplex impeller pump, including duplex impeller pump, master
Oil duct 6, pump discharge 7, main control valve 8；The main control valve 8 includes valve pocket, spool 81 and spring, and one end of the valve pocket is control
Chamber 82 processed, the control chamber 82 are connect by pipeline with main oil gallery 6, and the other end of the valve pocket is spring cavity, the spool 81
Both ends can be moved in valve pocket by the effect of oil pressure and spring force respectively, be additionally provided on the valve pocket A mouths 83, B mouths 84, C mouthfuls
85；The duplex impeller pump includes pump chamber 1 and armature spindle 2, main pump 3, auxiliary pump 4 in pump chamber 1, the main pump 3 and pair
It is equipped with one piece of circular bulkheads 5 between pump 4, sets on the partition board 5 there are one eccentric pivot hole 51, in eccentric pivot hole on the partition board 5
51 side is additionally provided with an oil-through-hole 52, and the partition board 5 separates the oil-discharging cavity of the oil-discharging cavity of main pump 3 and auxiliary pump 4, the master
The oil suction chamber of pump 3 and the oil suction chamber of auxiliary pump 4 are then communicated by the oil-through-hole 52 on partition board 5；The main pump 3 includes main pump internal rotor
31 and main pump outer rotor 32, the main oil-discharging cavity that main pump internal rotor 31 generates when being operated with the rotor pair that main pump outer rotor 32 is constituted is logical
Piping connection is crossed to pump discharge 7；The auxiliary pump 4 includes auxiliary pump internal rotor 41 and auxiliary pump outer rotor 42, auxiliary pump internal rotor 41 and pair
The B mouths 84 that the secondary oil-discharging cavity generated when the rotor pair operating that pump outer rotor 42 is constituted passes through piping connection to main control valve；It is described
A mouths 83 on valve pocket are connected by pipeline with pump discharge 7, the C mouths 85 on the valve pocket by pipeline and main pump and auxiliary pump into
Oil pocket is connected, and the circumferential surface of the spool 81 is set there are two cricoid oil groove 86, there are one the spacer portion between two oil grooves 86 is set
Through-hole, according to different location of the spool 81 in valve pocket, main control valve 8 be respectively at B mouths 84 communicated with A mouths 83, B mouths 84 simultaneously
It is communicated with A mouths 83 and C mouths 85, B mouths 84 are communicated with C mouths 85, A mouths 83 communicate one kind in four kinds of states with C mouths 85.
As shown in Figure 3,4, a through-hole is additionally provided in the other side of eccentric pivot hole 51, on the partition board 5 in the through-hole
Equipped with one piece of rocker piece 53 mutually chimeric with the through-hole, the rocker piece 53 can be moved axially in through-holes under the action of oil pressure
It is dynamic.The shape of oil-through-hole 52 and through-hole on the partition board 5 is crescent, and the shape of the rocker piece 53 is also crescent.
When work, main pump 3 continues to pump discharge fuel feeding, and auxiliary pump 4 selects fuel feeding or oil extraction by main control valve 8, when main pump 3
When meeting engine or gear box oil pump, auxiliary pump 4 is then run in lower oil-pressure direct back into oil pocket, realizes that the discharge capacity of impeller pump can
It controls and energy saving.
Embodiment 3
As shown in Figure 2,3, 4, a kind of output displacement can be changed the control system of duplex impeller pump comprising in embodiment 2
All structures, except further include pilot solenoid valve 9, the pilot solenoid valve 9 is located at the control chamber 82 and main oil gallery of main control valve 8
On pipeline between 6, this structure can realize multistage variable displacement control.
Temperature, load and tach signal of the pilot solenoid valve 9 detected by ECU determines target pressure value,
And control the spool position and opening/closing time of main control valve 8.When pilot solenoid valve 9 is in OFF state, the control of main control valve
Chamber 82 is in drain charge state, and the pressure oil in 4 oil-discharging cavity of auxiliary pump enters pump discharge 7 after B mouths 84, A mouths 83 successively；When pumping out
7 hypertonia of mouth, pilot solenoid valve 9 must be electric, and the control chamber 82 that 6 oil pressure of main oil gallery enters main control valve through pilot solenoid valve 9 pushes away
Movable valve plug 81 is gradually moved to spring cavity, and A mouths 83 is made to progressively close off, and C mouths 85 are gradually opened, the part pressure in 4 oil-discharging cavity of auxiliary pump
Power oil enters pump discharge 7 after B mouths 84, A mouths 83 successively, and another part pressure oil flows back after B mouths 84, C mouths 83 successively
To the oil suction chamber of main pump 3 and auxiliary pump 4；When A mouths 83 completely close, then C mouths 85 are opened completely, the pressure oil in 4 oil-discharging cavity of auxiliary pump
The oil suction chamber of main pump 3 and auxiliary pump 4 is back to after B mouths 84, C mouths 85 successively；When 6 pressure of main oil gallery continues to increase, main oil
The control chamber 82 that 6 oil pressure of road enters main control valve through pilot solenoid valve 9 pushes spool 81 to continue to move to spring cavity, makes A mouths 83
It is communicated with C mouths 85, the closing of B mouths 84, the extra oil of pump discharge 7 passes through the 85 part drain charge of A mouths 83 and C mouths, forms overflow control.
Above-described embodiment is the preferable implementation of the present invention, and in addition to this, the present invention can be realized with other manner,
Do not depart from the technical program design under the premise of it is any it is obvious replacement within protection scope of the present invention.
In order to allow those of ordinary skill in the art more easily to understand the improvements of the present invention compared with the existing technology, this
Some attached drawings of invention and description have been simplified, and for the sake of clarity, present specification is omitted some other members
Element, those of ordinary skill in the art should be aware that the element that these are omitted also may make up present disclosure.
Claims (8)
1. a kind of output displacement can be changed duplex impeller pump, it is characterised in that：Including pump chamber（1）With mounted on pump chamber（1）Interior turns
Sub- axis（2）, main pump（3）, auxiliary pump（4）, the main pump（3）And auxiliary pump（4）It is equipped with oil suction chamber and oil-discharging cavity, the main pump（3）
Including main pump internal rotor（31）With main pump outer rotor（32）, the auxiliary pump（4）Including auxiliary pump internal rotor（41）With auxiliary pump outer rotor
（42）；The main pump（3）And auxiliary pump（4）Between be equipped with one piece of partition board（5）, the partition board（5）It is generally round, the partition board
（5）On set there are one eccentric pivot hole（51）, the partition board（5）On in eccentric pivot hole（51）Side set there are one oil-through-hole
（52）；The partition board（5）By main pump（3）Oil-discharging cavity and auxiliary pump（4）Oil-discharging cavity separate, the main pump（3）Oil suction chamber and
Auxiliary pump（4）Oil suction chamber then pass through partition board（5）On oil-through-hole（52）It communicates；The partition board（5）On in eccentric pivot hole（51）'s
The other side is additionally provided with a through-hole, and one piece of rocker piece mutually chimeric with the through-hole is housed in the through-hole（53, the rocker piece
（53）It can be moved axially in through-holes under the action of oil pressure.
2. output displacement according to claim 1 can be changed duplex impeller pump, it is characterised in that：The partition board（5）On it is logical
Oilhole（52）Shape with through-hole is crescent, the rocker piece（53）Shape also be crescent.
3. a kind of output displacement can be changed the control system of duplex impeller pump, it is characterised in that：Including duplex impeller pump, main oil gallery
（6）, pump discharge（7）, main control valve（8）；The main control valve（8）Including valve pocket, spool（81）And spring, the one of the valve pocket
Hold chamber in order to control（82）, the control chamber（82）Pass through pipeline and main oil gallery（6）Or pump discharge（1）Connection, the valve pocket it is another
One end is spring cavity, the spool（81）Both ends can be moved in valve pocket by the effect of oil pressure and spring force respectively, the valve
It puts on and is additionally provided with A mouthfuls（83）, B mouthfuls（84）, C mouthfuls（85）；The duplex impeller pump includes pump chamber（1）With mounted on pump chamber（1）It is interior
Armature spindle（2）, main pump（3）, auxiliary pump（4）, the main pump（3）And auxiliary pump（4）Between be equipped with one piece of partition board（5）, the main pump
（3）And auxiliary pump（4）It is equipped with oil suction chamber and oil-discharging cavity, the oil suction chamber of two of which pump interconnects, and the oil-discharging cavity of two pumps is then
By partition board（5）It separates；The main pump（3）Including main pump internal rotor（31）With main pump outer rotor（32）, main pump internal rotor（31）With
Main pump outer rotor（32）The main oil-discharging cavity generated when the rotor pair operating of composition passes through piping connection to pump discharge（7）；The pair
Pump（4）Including auxiliary pump internal rotor（41）With auxiliary pump outer rotor（42）, auxiliary pump internal rotor（41）With auxiliary pump outer rotor（42）It constitutes
The secondary oil-discharging cavity that rotor pair generates when operating passes through piping connection to main control valve（8）B mouths（84）；A mouths on the valve pocket
（83）Pass through pipeline and pump discharge（7）It is connected, the C mouths on the valve pocket（85）Pass through pipeline and main pump（3）And auxiliary pump（4）Into
Oil pocket is connected, the spool（81）Circumferential surface be equipped with cricoid oil groove（86）, according to spool（81）Different location in valve pocket,
Main control valve（8）It is respectively at B mouthfuls（84）With A mouthfuls（83）It communicates, B mouthfuls（84）Simultaneously with A mouthfuls（83）With C mouthfuls（85）It communicates, B mouthfuls
（84）With C mouthfuls（85）It communicates, A mouthfuls（83）With C mouthfuls（85）Communicate one kind in four kinds of states.
4. output displacement according to claim 3 can be changed the control system of duplex impeller pump, it is characterised in that：The control system
System further includes pilot solenoid valve（9）, the pilot solenoid valve（9）Positioned at main control valve（8）Control chamber（82）With main oil gallery（6）
Or pump discharge（7）Between pipeline on.
5. output displacement according to claim 4 can be changed the control system of duplex impeller pump, it is characterised in that：
Work as pilot solenoid valve（9）When in OFF state, main control valve（8）Control chamber（82）In drain charge state, auxiliary pump（4）
Pressure oil in oil-discharging cavity passes through B mouthfuls successively（84）, A mouthfuls（83）Enter pump discharge afterwards（7）；
Work as pump discharge（7）Hypertonia, pilot solenoid valve（9）Obtain electric, main oil gallery（6）Or pump discharge（7）Oil pressure is through first conductive magnetism
Valve（9）Into main control valve（8）Control chamber（82）Push spool（81）It is gradually moved to spring cavity, makes A mouthfuls（83）Gradually close
It closes, C mouthfuls（85）It is gradually opened, auxiliary pump（4）Partial pressure oil in oil-discharging cavity passes through B mouthfuls successively（84）, A mouthfuls（83）Enter pump afterwards
Outlet（7）, another part pressure oil is successively by B mouthfuls（84）, C mouthfuls（85）After be back to main pump（3）And auxiliary pump（4）Oil inlet
Chamber；
When A mouthfuls（83）It completely closes, then C mouthfuls（85）It opens completely, auxiliary pump（4）Pressure oil in oil-discharging cavity passes through B mouthfuls successively
（84）, C mouthfuls（85）After be back to main pump（3）And auxiliary pump（4）Oil suction chamber；Work as main oil gallery（6）When pressure continues to increase, main oil
Road（6）Or pump discharge（7）Oil pressure is through pilot solenoid valve（9）Into main control valve（8）Control chamber（82）Push spool（81）After
Continue and moved to spring cavity, makes A mouthfuls（83）With C mouthfuls（85）It communicates, B mouthfuls（84）It closes, pump discharge（7）Extra oil passes through A mouthfuls
（83）With C mouthfuls（85）Part drain charge forms overflow control.
6. the output displacement according to any one of claim 3 to 5 can be changed the control system of duplex impeller pump, feature
It is：The main control valve spool（81）Circumferential surface set there are two cricoid oil groove（86）, two oil grooves（86）Between interval
Portion is set there are one through-hole.
7. the output displacement according to any one of claim 3 to 5 can be changed the control system of duplex impeller pump, feature
It is：The partition board（5）It is generally round, the partition board（5）On set there are one eccentric pivot hole（51）, the partition board（5）On
Eccentric pivot hole（51）Side be additionally provided with an oil-through-hole（52）, the partition board（5）By main pump（3）Oil-discharging cavity and auxiliary pump（4）
Oil-discharging cavity separate, the main pump（3）Oil suction chamber and auxiliary pump（4）Oil suction chamber then pass through partition board（5）On oil-through-hole（52）
It communicates.
8. output displacement according to claim 7 can be changed the control system of duplex impeller pump, it is characterised in that：It is described every
Plate（5）On in eccentric pivot hole（51）The other side be additionally provided with a through-hole, it is mutually chimeric with the through-hole equipped with one piece in the through-hole
Rocker piece（53）, the rocker piece（53）It can be moved axially in through-holes under the action of oil pressure.
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| CN106051441B true CN106051441B (en) | 2018-07-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107355666B (en) * | 2017-09-09 | 2022-08-09 | 湖南机油泵股份有限公司 | Double-rotor oil pump |
| CN110145676A (en) * | 2019-06-19 | 2019-08-20 | 湖南机油泵股份有限公司 | A kind of three pump tooth variable-flow lubricating oil pump |
| CN110469503B (en) * | 2019-09-18 | 2024-04-02 | 湖南机油泵股份有限公司 | Two-stage variable control system based on variable displacement pump |
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| JPH09126153A (en) * | 1995-10-30 | 1997-05-13 | Aisin Seiki Co Ltd | Oil pump device |
| CN101074665A (en) * | 2006-05-18 | 2007-11-21 | 上海顺宸液压泵制造有限公司 | Linear conjugated internal-clutch high-pressure gear pump |
| CN104302917A (en) * | 2012-05-17 | 2015-01-21 | 株式会社三国 | Multistage oil pump |
| CN105351188A (en) * | 2015-11-04 | 2016-02-24 | 湖南机油泵股份有限公司 | Combination valve type control system of secondary variable displacement vane pump |
| CN205842180U (en) * | 2016-08-03 | 2016-12-28 | 湖南机油泵股份有限公司 | A kind of output discharge capacity variable duplex impeller pump and control system thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITBO20080686A1 (en) * | 2008-11-13 | 2010-05-14 | Cnh Italia Spa | GEROTOR TYPE PUMP |
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2016
- 2016-08-03 CN CN201610625191.XA patent/CN106051441B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09126153A (en) * | 1995-10-30 | 1997-05-13 | Aisin Seiki Co Ltd | Oil pump device |
| CN101074665A (en) * | 2006-05-18 | 2007-11-21 | 上海顺宸液压泵制造有限公司 | Linear conjugated internal-clutch high-pressure gear pump |
| CN104302917A (en) * | 2012-05-17 | 2015-01-21 | 株式会社三国 | Multistage oil pump |
| CN105351188A (en) * | 2015-11-04 | 2016-02-24 | 湖南机油泵股份有限公司 | Combination valve type control system of secondary variable displacement vane pump |
| CN205842180U (en) * | 2016-08-03 | 2016-12-28 | 湖南机油泵股份有限公司 | A kind of output discharge capacity variable duplex impeller pump and control system thereof |
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Denomination of invention: A dual rotor pump with variable output displacement and its control system Effective date of registration: 20211224 Granted publication date: 20180731 Pledgee: Bank of Beijing Limited by Share Ltd. Changsha branch Pledgor: Hunan Oil Pump Co.,Ltd. Registration number: Y2021430000097 |
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Date of cancellation: 20230105 Granted publication date: 20180731 Pledgee: Bank of Beijing Limited by Share Ltd. Changsha branch Pledgor: Hunan Oil Pump Co.,Ltd. Registration number: Y2021430000097 |
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Denomination of invention: A variable output displacement double rotor pump and its control system Effective date of registration: 20230130 Granted publication date: 20180731 Pledgee: Bank of Beijing Limited by Share Ltd. Changsha branch Pledgor: Hunan Oil Pump Co.,Ltd. Registration number: Y2023430000008 |