CN205842180U - A kind of output discharge capacity variable duplex impeller pump and control system thereof - Google Patents
A kind of output discharge capacity variable duplex impeller pump and control system thereof Download PDFInfo
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- CN205842180U CN205842180U CN201620829270.8U CN201620829270U CN205842180U CN 205842180 U CN205842180 U CN 205842180U CN 201620829270 U CN201620829270 U CN 201620829270U CN 205842180 U CN205842180 U CN 205842180U
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Abstract
This utility model provides a kind of output discharge capacity variable duplex impeller pump, including pump chamber and the armature spindle being arranged in pump chamber, main pump, auxiliary pump, it is provided with dividing plate between described main pump and auxiliary pump, described dividing plate is provided with an eccentric pivot hole and an oil through, the oil-discharging cavity of main pump and the oil-discharging cavity of auxiliary pump are separated by described dividing plate, and 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；Described main pump includes main pump internal rotor and main pump outer rotor, and described auxiliary pump includes auxiliary pump internal rotor and auxiliary pump outer rotor.This utility model provides a kind of control system for this output discharge capacity variable duplex impeller pump simultaneously.In technique scheme, being divided into major-minor two pumps by dividing plate, main pump continues fuel feeding, auxiliary pump selects fuel feeding or oil extraction by control valve, when main pump meets electromotor or 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.
Description
Technical field
This utility model relates to internal combustion engine or speed changing box lubricating system technical field, particularly a kind of internal combustion engine or change speed gear box
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.
Utility model content
The output discharge capacity that the technical problems to be solved in the utility model is to provide a kind of simple in construction, reliability is high is variable double
Connection impeller pump and control system thereof.
For solving above-mentioned technical problem, this utility model 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 between auxiliary pump, it being provided with one piece of dividing plate, described main pump and auxiliary pump are equipped with oil suction chamber and oil-discharging cavity, the oil suction chamber of two of which pump
Interconnecting, 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 pair
Pump includes 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.
This utility model about the technical scheme of control system is: a kind of control system exporting discharge capacity variable duplex impeller pump
System, including duplex impeller pump, main oil gallery, pump discharge, main control valve；Described main control valve includes valve pocket, spool and spring, described
One end of valve pocket 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
Spring cavity, 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 this utility model embodiment 1 and the structural representation of embodiment 2；
Fig. 2 is the structural representation of this utility model embodiment 3；
Fig. 3 is the diaphragm structure schematic diagram that this utility model 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, this utility model is made further with accompanying drawing below in conjunction with embodiment
Explanation, the content that embodiment is mentioned is not to restriction of the present utility model.
In description of the present utility model, it is to be understood that term " first ", " second " are only used for describing purpose, and
It is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.At this utility model
Description in, " multiple " are meant that two or more, unless otherwise expressly limited specifically.Retouch of the present utility model
In stating, it should be noted that unless otherwise prescribed and limit, term " is installed ", " being connected ", " connection " should be interpreted broadly, example
As, can be to be 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 be logical
Cross intermediary to be indirectly connected to, for the ordinary skill in the art, described term can be understood as the case may be
Concrete meaning.
Embodiment 1
A kind of output discharge capacity variable duplex impeller pump as shown in Fig. 1,3,4, including pump chamber 1 be arranged in pump chamber 1
Armature spindle 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 one
Eccentric pivot 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 main pump 3
The oil-discharging cavity of oil-discharging cavity and auxiliary pump 4 separates, and the oil suction chamber of described main pump 3 and auxiliary pump 4 is then by oil through 52 phase on dividing plate 5
Logical；Described main pump 3 includes that main pump internal rotor 31 and main pump outer rotor 32, described auxiliary pump 4 include outside auxiliary pump internal rotor 41 and auxiliary pump
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, master
Oil duct 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 control
Chamber 82 processed, described control chamber 82 is connected with main oil gallery 6 by pipeline, and the other end of described valve pocket is spring cavity, described spool 81
Two ends 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 83, B mouth 84, C mouth
85；Described duplex impeller pump includes 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 pair
Being provided with one piece of circular bulkheads 5 between pump 4, described dividing plate 5 is provided with an eccentric pivot hole 51, at eccentric pivot hole on described dividing plate 5
The side of 51 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 master
The oil suction chamber of pump 3 and the oil suction chamber of auxiliary pump 4 are then communicated by the oil through 52 on dividing plate 5；Described main pump 3 includes main pump internal rotor
31 and 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 leads to
Cross pipeline and be connected to pump discharge 7；Described auxiliary pump 4 includes auxiliary pump internal rotor 41 and auxiliary pump outer rotor 42, and auxiliary pump internal rotor 41 is with secondary
The secondary oil-discharging cavity produced during the rotor pair operating that pump outer rotor 42 is constituted is connected to the B mouth 84 of main control valve by pipeline；Described
A mouth on valve pocket 83 is connected with pump discharge 7 by pipeline, and the C mouth 85 on described valve pocket passes through entering of pipeline and main pump and auxiliary pump
Oil pocket is connected, and 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 one
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
Communicate with A mouth 83 and C mouth 85, 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 in embodiment 2
All structures, outside also include that pilot solenoid valve 9, described pilot solenoid valve 9 are positioned at control chamber 82 and the main oil gallery of main control valve 8
On pipeline between 6, 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 this utility model preferably implementation, and in addition, this utility model can be with other side
Formula realizes, and on the premise of conceiving without departing from the technical program, any obvious replacement is all at protection model of the present utility model
Within enclosing.
In order to allow those of ordinary skill in the art understand more easily this utility model relative to prior art improvement it
Place, accompanying drawings more of the present utility model and description have been simplified, and for the sake of clarity, present specification is omitted one
Other elements a little, it is of the present utility model interior that those of ordinary skill in the art it is to be appreciated that these elements omitted also may make up
Hold.
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620829270.8U CN205842180U (en) | 2016-08-03 | 2016-08-03 | A kind of output discharge capacity variable duplex impeller pump and control system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620829270.8U CN205842180U (en) | 2016-08-03 | 2016-08-03 | A kind of output discharge capacity variable duplex impeller pump and control system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205842180U true CN205842180U (en) | 2016-12-28 |
Family
ID=57616963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620829270.8U Withdrawn - After Issue CN205842180U (en) | 2016-08-03 | 2016-08-03 | A kind of output discharge capacity variable duplex impeller pump and control system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205842180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051441A (en) * | 2016-08-03 | 2016-10-26 | 湖南机油泵股份有限公司 | Output displacement variable duplex rotor pump and control system thereof |
-
2016
- 2016-08-03 CN CN201620829270.8U patent/CN205842180U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051441A (en) * | 2016-08-03 | 2016-10-26 | 湖南机油泵股份有限公司 | Output displacement variable duplex rotor pump and control system thereof |
| CN106051441B (en) * | 2016-08-03 | 2018-07-31 | 湖南机油泵股份有限公司 | A kind of output displacement can be changed duplex impeller pump and its control system |
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