CN106051441A - Output displacement variable duplex rotor pump and control system thereof - Google Patents
Output displacement variable duplex rotor pump and control system thereof Download PDFInfo
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- CN106051441A CN106051441A CN201610625191.XA CN201610625191A CN106051441A CN 106051441 A CN106051441 A CN 106051441A CN 201610625191 A CN201610625191 A CN 201610625191A CN 106051441 A CN106051441 A CN 106051441A
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- 238000006073 displacement reaction Methods 0.000 title abstract description 7
- 238000007599 discharging Methods 0.000 claims description 35
- 230000000694 effects Effects 0.000 claims description 11
- 206010020852 Hypertonia Diseases 0.000 claims description 2
- 230000005389 magnetism Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract 4
- 238000000605 extraction Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 241001347978 Major minor Species 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
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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
-
- 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
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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
- F16N23/00—Special adaptations of check valves
-
- 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 invention provides an output displacement variable duplex rotor pump. The output displacement variable duplex rotor pump comprises a pump cavity, and a rotor shaft, a main pump and a secondary pump mounted in the pump cavity; a separation plate is arranged between the main pump and the secondary pump, and is provided with an eccentric shaft hole and an oil passing hole; an oil discharge cavity of the main pump and an oil discharge cavity of the secondary pump are separated by the separation plate; an oil inlet cavity of the main pump and an oil inlet cavity of the secondary pump communicate through the oil passing hole in the separation plate; the main pump includes a main pump inner rotor and a main pump outer rotor; and the secondary pump includes a secondary pump inner rotor and a secondary pump outer rotor. Meanwhile, the invention provides a control system for the output displacement variable duplex rotor pump. In the technical scheme, the main and secondary pumps are divided by the separation plate; the main pump continuously supplies oil; the secondary pump selects oil supply or oil discharge through a control valve; and when the main pump satisfies an engine or transmission oil pump, the secondary pump directly discharges oil back to the oil inlet cavity with lower oil pressure, so that the displacement controllability and the energy conservation of the rotor pump are realized.
Description
Technical field
The present invention relates to internal combustion engine or speed changing box lubricating system technical field, particularly a kind of internal combustion engine or transmission system
Controlled duplex impeller pump and control system thereof.
Background technology
Improving constantly the increasingly stringent with automobile emission regulation along with what automotive energy-saving emission-reducing was realized, variable capacity oil pump exists
Application in engine lubrication system and transmission system becomes increasingly popular, and mainly includes three types: realize by changing bias
Become the sliding-vane pump (including sliding pump) of discharge capacity, realize becoming the gear pump of discharge capacity by changing length of action, saved by oil inlet and outlet
Stream realizes the impeller pump of variable-flow.Wherein the stroking mechanism of sliding-vane pump is more complicated, and stator is that floating structure reduces oil simultaneously
, all there is a certain degree of hydraulic performance decline at big flow, low speed and high-speed working condition, especially high-power in the reliability of pumping system
Application on commercial vehicle engine is restricted.The stroking mechanism of gear pump is more complicated, and cost is higher, aggregate efficiency and response time
Etc. important performance indexes not as good as sliding-vane pump and impeller pump etc..The research becoming discharge capacity impeller pump is being carried out always, but is all formed without
Effectively breaking through, thus can not realize change discharge capacity truly, fuel-economizing income and economy are all restricted.
Summary of the invention
The variable duplex of output discharge capacity that the technical problem to be solved in the present invention is to provide a kind of simple in construction, reliability is high turns
Sub-pump and control system thereof.
For solving above-mentioned technical problem, the present invention about the technical scheme of output discharge capacity variable duplex impeller pump is: a kind of
Output discharge capacity variable duplex impeller pump, the armature spindle including pump chamber and being arranged in pump chamber, main pump, auxiliary pump, described main pump and pair
Being provided with one piece of dividing plate between pump, described 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
Connection, the oil-discharging cavity of two pumps is then separated by dividing plate；Described main pump includes main pump internal rotor and main pump outer rotor, described auxiliary pump bag
Include auxiliary pump internal rotor and auxiliary pump outer rotor.
The duplex impeller pump that technique scheme provides, in a pump chamber, simultaneously drives two sets by a roots rotor axle
Rotor is secondary, and is divided into major-minor two pumps by one piece of dividing plate, and dividing plate makes 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 discharge capacity of this structure is variable and simple and compact for structure.
In one embodiment, described dividing plate is the most circular, and described dividing plate is provided with an eccentric pivot hole, described dividing plate
On be additionally provided with an oil through in the side of eccentric pivot hole, the oil-discharging cavity of main pump and the oil-discharging cavity of auxiliary pump are separated by described dividing plate,
The oil suction chamber of described main pump and the oil suction chamber of auxiliary pump are then communicated by the oil through on dividing plate.
Further, on described dividing plate, opposite side at eccentric pivot hole is additionally provided with a through hole, equipped with one in described through hole
Block and the rocker piece of this through hole tabling, described rocker piece can move axially under the effect of oil pressure in through-holes.This knot
Structure can have a cushioning effect to the oil pressure of oil-discharging cavity.
Preferably, oil through and the shape of through hole on described dividing plate are crescent, and the shape of described rocker piece is also
Crescent.
The present invention about the technical scheme of control system is: a kind of control system exporting discharge capacity variable duplex impeller pump,
Including duplex impeller pump, main oil gallery, pump discharge, main control valve；Described main control valve includes valve pocket, spool and spring, described valve
One end of set is for controlling chamber, and described control chamber is connected with main oil gallery or pump discharge by pipeline, and the other end of described valve pocket is bullet
Spring chamber, the two ends of described spool can be moved in valve pocket by the effect of oil pressure and spring force respectively, described valve pocket is additionally provided with A
Mouth, B mouth, C mouth；Described duplex impeller pump include pump chamber and be arranged in pump chamber armature spindle, main pump, auxiliary pump, described main pump and
Being provided with one piece of dividing plate between auxiliary pump, described 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
Being connected, the oil-discharging cavity of two pumps is then separated by dividing plate；Described main pump includes main pump internal rotor and main pump outer rotor, turns in main pump
The main oil-discharging cavity produced during the rotor pair operating that son and main pump outer rotor are constituted is connected to pump discharge by pipeline；Described auxiliary pump bag
Include auxiliary pump internal rotor and auxiliary pump outer rotor, the secondary oil extraction produced during the rotor pair operating that auxiliary pump internal rotor and auxiliary pump outer rotor are constituted
Chamber is connected to the B mouth of main control valve by pipeline；A mouth on described valve pocket is connected with pump discharge, on described valve pocket by pipeline
C mouth be connected with the oil suction chamber of main pump and auxiliary pump by pipeline, the side face of described spool is provided with ring-type oil groove, exists according to spool
Diverse location in valve pocket, main control valve is respectively at that B mouth communicates with A mouth, B mouth communicates with A mouth and C mouth simultaneously, B mouth and C mouth
Communicate, A mouth communicates the one in four kinds of states with C mouth.
In technique scheme, in a pump chamber, simultaneously drive two set rotors by a roots rotor axle secondary, and by every
Plate is divided into major-minor two pumps, and main pump continues fuel feeding, and auxiliary pump selects fuel feeding or oil extraction by control valve, when main pump meets electromotor
Or during gear box oil pump, auxiliary pump runs in back into oil pocket with relatively low oil-pressure direct, it is achieved rotor pump delivery is controlled and energy-conservation.
Further, control system also includes that pilot solenoid valve, described pilot solenoid valve are positioned at the control chamber of main control valve
And on the pipeline between main oil gallery or pump discharge.So can be achieved with multistage variable displacement control.
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 intracavity enters pump discharge after sequentially passing through B mouth, A mouth；When pump discharge pressure is too high, and 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 promotes spool gradually to move to spring cavity, makes A mouth
Progressively closing off, C mouth is gradually opened, and the partial pressure oil in auxiliary pump oil-discharging cavity enters pump discharge after sequentially passing through B mouth, A mouth, another
Partial pressure oil is back to the oil suction chamber of main pump and auxiliary pump after sequentially passing through B mouth, C mouth；When A mouth completely closes, then C mouth is beaten completely
Opening, the pressure oil in auxiliary pump oil-discharging cavity is back to the oil suction chamber of main pump and auxiliary pump after sequentially passing through B mouth, C mouth；Work as main oil gallery pressure
When continuing to raise, the control chamber that main oil gallery or pump discharge oil pressure enter main control valve through pilot solenoid valve promotes spool to continue to bullet
Spring chamber is moved, and makes A mouth communicate with C mouth, B mouth is closed, and the unnecessary oil of pump discharge divides drain charge through A mouth and C oral area, forms overflow control
System.
Wherein, the side face of described main control valve spool is provided with two ring-type oil grooves, and the spacer portion between two oil grooves sets
There is a through hole.
Wherein, described pilot solenoid valve determines goal pressure according to the temperature detected by ECU, load and tach signal
Value, and control spool position and the opening/closing time of main control valve.
In one embodiment, described dividing plate is the most circular, and described dividing plate is provided with an eccentric pivot hole, described dividing plate
On be additionally provided with an oil through in the side of eccentric pivot hole, the oil-discharging cavity of main pump and the oil-discharging cavity of auxiliary pump are separated by described dividing plate,
The oil suction chamber of described main pump and the oil suction chamber of auxiliary pump are then communicated by the oil through on dividing plate.
Further, on described dividing plate, opposite side at eccentric pivot hole is additionally provided with a through hole, equipped with one in described through hole
Block and the rocker piece of this through hole tabling, described rocker piece can move axially under the effect of oil pressure in through-holes.This knot
Structure can have a cushioning effect to the oil pressure of oil-discharging cavity.
Preferably, oil through and the shape of through hole on described dividing plate are crescent, and the shape of described rocker piece is also
Crescent.
Accompanying drawing explanation
Fig. 1 is the structural representation of Example 1 and Example 2 of the present invention；
Fig. 2 is the structural representation of the embodiment of the present invention 3；
Fig. 3 is the diaphragm structure schematic diagram that the present invention implements in 1-3；
Fig. 4 is the sectional structure schematic diagram of line A-A in Fig. 3.
Reference is:
1 pump chamber 2 armature spindle 3 main pump
4 auxiliary pump 5 dividing plate 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 53 rocker pieces
81 spools 82 control chamber 83 A mouth
84 B mouth 85 C mouths.
Detailed description of the invention
For the ease of the understanding of those skilled in the art, the present invention is made further with accompanying drawing below in conjunction with embodiment
Bright, that embodiment is mentioned content not limitation of the invention.
In describing the invention, it is to be understood that term " first ", " second " are only used for describing purpose, and can not
It is interpreted as instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.In description of the invention
In, " multiple " are meant that two or more, unless otherwise expressly limited specifically.In describing the invention, need
Illustrating, unless otherwise prescribed and limit, term " is installed ", " being connected ", " connection " should be interpreted broadly, for example, it may be
It is mechanically connected or electrical connection, it is also possible to be the connection of two element internals, can be to be joined directly together, it is also possible to pass through intermediary
It is indirectly connected to, for the ordinary skill in the art, the concrete meaning of described term can be understood as the case may be.
Embodiment 1
A kind of output discharge capacity variable duplex impeller pump as shown in Fig. 1,3,4, including pump chamber 1 and the rotor being arranged in pump chamber 1
Axle 2, main pump 3, auxiliary pump 4, be provided with one piece of circular bulkheads 5 between described main pump 3 and auxiliary pump 4, described dividing plate 5 is provided with a bias
Axis hole 51, described dividing plate 5 is additionally provided with an oil through 52 in the side of eccentric pivot hole 51, and described dividing plate 5 is by the oil extraction of main pump 3
The oil-discharging cavity of chamber and auxiliary pump 4 separates, and the oil suction chamber of described main pump 3 and auxiliary pump 4 is then communicated by the oil through 52 on dividing plate 5；Institute
State main pump 3 and include that main pump internal rotor 31 and main pump outer rotor 32, described auxiliary pump 4 include auxiliary pump internal rotor 41 and auxiliary pump outer rotor
42。
As shown in Figure 3,4, on dividing plate 5, the opposite side at eccentric pivot hole 51 is additionally provided with a through hole, in described through hole equipped with
One piece with the rocker piece 53 of this through hole tabling, described rocker piece 53 can move axially under the effect of oil pressure in through-holes.
Oil through 52 and the shape of through hole on described dividing plate 5 are crescent, and the shape of described rocker piece 53 is also crescent.
Embodiment 2
As shown in Fig. 1,3,4, a kind of control system exporting discharge capacity variable duplex impeller pump, including duplex impeller pump, main oil gallery
6, pump discharge 7, main control valve 8；Described main control valve 8 includes valve pocket, spool 81 and spring, and one end of described valve pocket is for controlling chamber
82, described control chamber 82 is connected with main oil gallery 6 by pipeline, and the other end of described valve pocket is spring cavity, the two of described spool 81
End can be moved by the effect of oil pressure and spring force respectively in valve pocket, and described valve pocket is additionally provided with A mouth 83, B mouth 84, C mouth 85；Institute
State duplex impeller pump include pump chamber 1 and the armature spindle 2 being arranged in pump chamber 1, main pump 3, auxiliary pump 4, described main pump 3 and auxiliary pump 4 it
Between be provided with one piece of circular bulkheads 5, described dividing plate 5 is provided with an eccentric pivot hole 51, at the one of eccentric pivot hole 51 on described dividing plate 5
Side is additionally provided with an oil through 52, and the oil-discharging cavity of main pump 3 and the oil-discharging cavity of auxiliary pump 4 are separated by described dividing plate 5, described main pump 3
The oil suction chamber of oil suction chamber and auxiliary pump 4 is then communicated by the oil through 52 on dividing plate 5；Described main pump 3 includes main pump internal rotor 31 He
Main pump outer rotor 32, the main oil-discharging cavity produced during the rotor pair operating that main pump internal rotor 31 and main pump outer rotor 32 are constituted is by pipe
Road is connected to pump discharge 7；Described auxiliary pump 4 includes auxiliary pump internal rotor 41 and auxiliary pump outer rotor 42, outside auxiliary pump internal rotor 41 is with auxiliary pump
The secondary oil-discharging cavity produced during the rotor pair operating that rotor 42 is constituted is connected to the B mouth 84 of main control valve by pipeline；Described valve pocket
On A mouth 83 be connected with pump discharge 7 by pipeline, the C mouth 85 on described valve pocket is by pipeline and main pump and the oil suction chamber of auxiliary pump
Being connected, the side face of described spool 81 is provided with two ring-type oil grooves 86, and the spacer portion between two oil grooves 86 is provided with a through hole,
According to the spool 81 diverse location in valve pocket, main control valve 8 be respectively at B mouth 84 communicate with A mouth 83, B mouth 84 simultaneously with A mouth
83 and C mouths 85 communicate, B mouth 84 communicates with C mouth 85, A mouth 83 communicates the one in four kinds of states with C mouth 85.
As shown in Figure 3,4, on described dividing plate 5, opposite side at eccentric pivot hole 51 is additionally provided with a through hole, in described through hole
Equipped with the rocker piece 53 of a piece with this through hole tabling, described rocker piece 53 can the most axially move under the effect of oil pressure
Dynamic.Oil through 52 and the shape of through hole on described dividing plate 5 are crescent, and the shape of described rocker piece 53 is also crescent.
During work, main pump 3 continues to pump discharge fuel feeding, and auxiliary pump 4 selects fuel feeding or oil extraction, when main pump 3 by main control valve 8
When meeting electromotor or gear box oil pump, auxiliary pump 4 then runs in back into oil pocket with relatively low oil-pressure direct, it is achieved rotor pump delivery can
Control is with energy-conservation.
Embodiment 3
As shown in Figure 2,3, 4, a kind of control system exporting discharge capacity variable duplex impeller pump, it includes owning in embodiment 2
Structure, outside also include pilot solenoid valve 9, described pilot solenoid valve 9 be positioned at main control valve 8 control chamber 82 and main oil gallery 6 it
Between pipeline on, this structure is capable of multistage variable displacement control.
Described pilot solenoid valve 9 determines target pressure value according to the temperature detected by ECU, load and tach signal,
And control spool position and the 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 auxiliary pump 4 oil-discharging cavity enters pump discharge 7 after sequentially passing through B mouth 84, A mouth 83；When pumping out
Mouth 7 hypertonia, pilot solenoid valve 9 obtains electric, and the control chamber 82 that main oil gallery 6 oil pressure enters main control valve through pilot solenoid valve 9 pushes away
Movable valve plug 81 gradually moves to spring cavity, makes A mouth 83 progressively close off, and C mouth 85 is gradually opened, the part pressure in auxiliary pump 4 oil-discharging cavity
Power oil enters pump discharge 7 after sequentially passing through B mouth 84, A mouth 83, and another part pressure oil refluxes after sequentially passing through B mouth 84, C mouth 83
To main pump 3 and the oil suction chamber of auxiliary pump 4；When A mouth 83 completely closes, then C mouth 85 fully opens, the pressure oil in auxiliary pump 4 oil-discharging cavity
Main pump 3 and the oil suction chamber of auxiliary pump 4 it is back to after sequentially passing through B mouth 84, C mouth 85；When main oil gallery 6 pressure continues to raise, main oil
Road 6 oil pressure enters the control chamber 82 of main control valve through pilot solenoid valve 9 and promotes spool 81 to continue to spring cavity to move, make A mouth 83
Communicate with C mouth 85, B mouth 84 is closed, and the unnecessary oil of pump discharge 7, through A mouth 83 and C mouth 85 part drain charge, forms overflow and controls.
Above-described embodiment is the present invention preferably implementation, and in addition, the present invention can realize with alternate manner,
On the premise of conceiving without departing from the technical program, any obvious replacement is all within protection scope of the present invention.
In order to allow those of ordinary skill in the art understand the present invention improvements relative to prior art more easily, this
Some accompanying drawings and the description of invention have been simplified, and for the sake of clarity, present specification is omitted some other yuan
Element, those of ordinary skill in the art it is to be appreciated that these elements omitted also may make up present disclosure.
Claims (10)
1. one kind output discharge capacity variable duplex impeller pump, it is characterised in that: include pump chamber (1) and be arranged in pump chamber (1) turn
Sub-axle (2), main pump (3), auxiliary pump (4), be provided with one piece of dividing plate (5) between described main pump (3) and auxiliary pump (4), described main pump (3) and
Auxiliary pump (4) is equipped with oil suction chamber and oil-discharging cavity, and the oil suction chamber of two of which pump interconnects, and the oil-discharging cavity of two pumps is then by dividing plate
(5) separate；Described main pump (3) includes main pump internal rotor (31) and main pump outer rotor (32), and described auxiliary pump (4) turns in including auxiliary pump
Son (41) and auxiliary pump outer rotor (42).
Output discharge capacity the most according to claim 1 variable duplex impeller pump, it is characterised in that: described dividing plate (5) is generally
Circle, described dividing plate (5) is provided with an eccentric pivot hole (51), and on described dividing plate (5), the side at eccentric pivot hole (51) also sets
Having an oil through (52), the oil-discharging cavity of main pump (3) and the oil-discharging cavity of auxiliary pump (4) are separated by described dividing plate (5), described main pump
(3) oil suction chamber and the oil suction chamber of auxiliary pump (4) are then communicated by the oil through (52) on dividing plate (5).
Output discharge capacity the most according to claim 2 variable duplex impeller pump, it is characterised in that: partially on described dividing plate (5)
The opposite side of arbor hole (51) is additionally provided with a through hole, equipped with the rocker piece of a piece with this through hole tabling in described through hole
(53), described rocker piece (53) can move axially under the effect of oil pressure in through-holes.
Output discharge capacity the most according to claim 3 variable duplex impeller pump, it is characterised in that: leading on described dividing plate (5)
The shape of oilhole (52) and through hole is crescent, and the shape of described rocker piece (53) is also crescent.
5. the control system exporting discharge capacity variable duplex impeller pump, it is characterised in that: include duplex impeller pump, main oil gallery
(6), pump discharge (7), main control valve (8)；Described main control valve (8) includes valve pocket, spool (81) and spring, the one of described valve pocket
End is for controlling chamber (82), and described control chamber (82) is connected with main oil gallery (6) or pump discharge (1) by pipeline, described valve pocket another
One end is spring cavity, and the two ends of described spool (81) can be moved by the effect of oil pressure and spring force respectively in valve pocket, described valve
Put and be additionally provided with A mouth (83), B mouth (84), C mouth (85)；In described duplex impeller pump includes pump chamber (1) and is arranged on pump chamber (1)
Armature spindle (2), main pump (3), auxiliary pump (4), be provided with one piece of dividing plate (5), described main pump between described main pump (3) and auxiliary pump (4)
(3) and auxiliary pump (4) 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
Separated by dividing plate (5)；Described main pump (3) includes main pump internal rotor (31) and main pump outer rotor (32), main pump internal rotor (31) with
The main oil-discharging cavity produced during the rotor pair operating that main pump outer rotor (32) is constituted is connected to pump discharge (7) by pipeline；Described pair
Pump (4) includes that auxiliary pump internal rotor (41) and auxiliary pump outer rotor (42), auxiliary pump internal rotor (41) and auxiliary pump outer rotor (42) are constituted
The secondary oil-discharging cavity produced during the operating of rotor pair is connected to the B mouth (84) of main control valve (8) by pipeline；A mouth on described valve pocket
(83) being connected with pump discharge (7) by pipeline, the C mouth (85) on described valve pocket passes through entering of pipeline and main pump (3) and auxiliary pump (4)
Oil pocket is connected, and the side face of described spool (81) is provided with ring-type oil groove (86), according to the spool (81) diverse location in valve pocket,
Main control valve (8) is respectively at that B mouth (84) communicates with A mouth (83), B mouth (84) communicates with A mouth (83) and C mouth (85) simultaneously, B mouth
(84) communicate with C mouth (85), A mouth (83) communicates the one in four kinds of states with C mouth (85).
The control system of output discharge capacity the most according to claim 5 variable duplex impeller pump, it is characterised in that: this control system
System also includes that pilot solenoid valve (9), described pilot solenoid valve (9) are positioned at control chamber (82) and the main oil gallery (6) of main control valve (8)
Or on the pipeline between pump discharge (7).
The control system of output discharge capacity the most according to claim 6 variable duplex impeller pump, it is characterised in that:
When pilot solenoid valve (9) is in OFF state, the control chamber (82) of main control valve (8) is in drain charge state, auxiliary pump (4)
Pressure oil in oil-discharging cavity sequentially passes through B mouth (84), A mouth (83) enters pump discharge (7) afterwards；
When pump discharge (7) hypertonia, pilot solenoid valve (9) obtains electric, and main oil gallery (6) or pump discharge (7) oil pressure are through first conductive magnetism
Valve (9) enters the control chamber (82) of main control valve (8) and promotes spool (81) gradually to move to spring cavity, makes A mouth (83) gradually close
Closing, C mouth (85) is gradually opened, and the partial pressure oil in auxiliary pump (4) oil-discharging cavity sequentially passes through B mouth (84), A mouth (83) enters pump afterwards
Outlet (7), another part pressure oil is back to main pump (3) and the oil-feed of auxiliary pump (4) after sequentially passing through B mouth (84), C mouth (85)
Chamber；When A mouth (83) completely closes, then C mouth (85) fully opens, and the pressure oil in auxiliary pump (4) oil-discharging cavity sequentially passes through B mouth
(84), main pump (3) and the oil suction chamber of auxiliary pump (4) it are back to after C mouth (85)；
When main oil gallery (6) pressure continues to raise, main oil gallery (6) or pump discharge (7) oil pressure enter master control through pilot solenoid valve (9)
The control chamber (82) of valve processed (8) promotes spool (81) to continue to move to spring cavity, makes A mouth (83) communicate with C mouth (85), B mouth
(84) closing, the unnecessary oil of pump discharge (7), through A mouth (83) and C mouth (85) part drain charge, forms overflow control.
8. according to the control system of the output discharge capacity variable duplex impeller pump described in any one in claim 5 to 7, its feature
It is: the side face of described main control valve spool (81) is provided with two ring-type oil grooves (86), the interval between two oil grooves (86)
Portion is provided with a through hole.
9. according to the control system of the output discharge capacity variable duplex impeller pump described in any one in claim 5 to 7, its feature
Be: described dividing plate (5) is generally circular, and described dividing plate (5) is provided with an eccentric pivot hole (51), on described dividing plate (5)
The side of eccentric pivot hole (51) is additionally provided with an oil through (52), and described dividing plate (5) is by the oil-discharging cavity of main pump (3) and auxiliary pump (4)
Oil-discharging cavity separate, the oil suction chamber of described main pump (3) and the oil suction chamber of auxiliary pump (4) are then by the oil through (52) on dividing plate (5)
Communicate.
The control system of output discharge capacity the most according to claim 9 variable duplex impeller pump, it is characterised in that: described every
On plate (5), the opposite side at eccentric pivot hole (51) is additionally provided with a through hole, equipped with one piece and this through hole tabling in described through hole
Rocker piece (53), described rocker piece (53) can move axially under the effect of oil pressure in through-holes.
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| CN107355666A (en) * | 2017-09-09 | 2017-11-17 | 湖南机油泵股份有限公司 | A kind of birotor lubricating oil pump |
| 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 |
| CN110469503A (en) * | 2019-09-18 | 2019-11-19 | 湖南机油泵股份有限公司 | A kind of two-stage variable control system based on variable-displacement pump |
| CN112343815A (en) * | 2020-11-20 | 2021-02-09 | 富奥汽车零部件股份有限公司 | Variable displacement pump and vehicle |
| CN115075907A (en) * | 2022-06-27 | 2022-09-20 | 山西柴油机工业有限责任公司 | Diesel engine lubricating oil level adjusting system capable of self-adapting to rotating speed |
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| CN112343815A (en) * | 2020-11-20 | 2021-02-09 | 富奥汽车零部件股份有限公司 | Variable displacement pump and vehicle |
| CN115075907A (en) * | 2022-06-27 | 2022-09-20 | 山西柴油机工业有限责任公司 | Diesel engine lubricating oil level adjusting system capable of self-adapting to rotating speed |
| CN115075907B (en) * | 2022-06-27 | 2024-07-05 | 山西柴油机工业有限责任公司 | Self-adaptive rotating speed diesel engine lubricating oil level adjusting system |
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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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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 |
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Address after: No. 69 Beizheng Street, Chengguan Town, Hengdong County, Hengyang City, Hunan Province 421000 Patentee after: Hunan Meihu Intelligent Manufacturing Co.,Ltd. Country or region after: China Address before: No. 69 Beizheng Street, Chengguan Town, Hengdong County, Hengyang City, Hunan Province 421000 Patentee before: Hunan Oil Pump Co.,Ltd. Country or region before: China |
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