CN107605720B - A kind of three-level or level Four displacement-variable oil pump based on biswitch solenoid valve - Google Patents
A kind of three-level or level Four displacement-variable oil pump based on biswitch solenoid valve Download PDFInfo
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- CN107605720B CN107605720B CN201711021757.9A CN201711021757A CN107605720B CN 107605720 B CN107605720 B CN 107605720B CN 201711021757 A CN201711021757 A CN 201711021757A CN 107605720 B CN107605720 B CN 107605720B
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- 230000008878 coupling Effects 0.000 claims description 16
- 238000010168 coupling process Methods 0.000 claims description 16
- 238000005859 coupling reaction Methods 0.000 claims description 16
- 230000005611 electricity Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 abstract description 49
- 239000010687 lubricating oil Substances 0.000 abstract description 11
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 230000004044 response Effects 0.000 abstract description 3
- 230000010355 oscillation Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
- F04C14/22—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
- F04C14/223—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam
-
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C2/3441—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
- F04C2/3442—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/811—Actuator for control, e.g. pneumatic, hydraulic, electric
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
- Reciprocating Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The present invention provides a kind of three-level based on biswitch solenoid valve or level Four displacement-variable oil pumps, cavity configuration is fed back using bivariate, one of variable feedback chamber is connected directly with pump discharge, another variable feedback chamber is controlled by pressure-control valve, the control valve includes two independent control chambers, two control chambers are connected to main oil gallery, and are respectively controlled by a switch electromagnetic valve.Two switch electromagnetic valves are in Guan Guan, switch, it opens and opens out under four kinds of different assembled states in pass, making pressure-control valve tool, there are four types of different pressure control modes, lubricating oil pump correspondingly also forms four kinds of different pressure control modes, thus it is able to satisfy the pressure demand of the various different operating conditions of engine, to realize that the pressure very close to engine actual demand controls target, its power is saved very close with the continuously variable displacement lubricating oil pump using electro-hydraulic proportional valve control, and control model logic of the invention is simple and reliable, response is rapid, pressure control is stablized, pressure oscillation is small.
Description
Technical field
The present invention relates to lubricating system of IC engine technical field, especially a kind of grease pump of multistage variable discharge capacity.
Background technique
Increasingly developed with energy-saving and emission-reduction technology of vehicles, variable capacity oil pump obtains extensively in lubricating system of IC engine
Using variable capacity oil pump experienced pump discharge feedback level-on variable, and main oil gallery feeds back level-on variable, switching regulator solenoid valve control
The secondary variable of two-chamber feedback and the multistage variable discharge capacity of electro-hydraulic proportional valve control.The Variable Area and engine of level-on variable are real
Border typical case's operating condition overlapping region is less, thus saves limited.The second level displacement-variable oil pump of switching regulator solenoid valve control
Low pressure and high voltage control are carried out respectively for the different operating condition of engine respectively, and energy-saving effect, which has, to be obviously improved, but because hair
Motivation operating condition is more complicated to be compared with the actual demand of engine, however it remains bigger function is rich, and energy-saving potential still has
It is to be excavated.
Continuously variable displacement lubricating oil pump based on electrohydraulic proportion technology gradually becomes the preferred mesh of engine development of new generation
Mark makes lubricating oil pump obtain different performance output and meets Different Work Condition of Engine by different duty ratio control electro-hydraulic proportional valves
Under pressure demand.Exist between the stability and reliability of the response characteristic of electro-hydraulic proportional valve, pressure controling precision and pressure
Contradiction, while the matching of electro-hydraulic proportional valve and oil pump mechanical part, the matching of control unit of engine ECU and oil pump assy all increase
The design and manufacture difficulty of lubricating oil pump and the complexity of calibration are added.
Summary of the invention
It is provided a kind of novel based on biswitch solenoid valve the purpose of the present invention is overcoming the above-mentioned insufficient of the prior art
Three-level or level Four displacement-variable oil pump.
The technical scheme is that a kind of three-level or level Four displacement-variable oil pump based on biswitch solenoid valve, packet
Include the pump housing, variable sliding block, variable spring and variable feedback chamber, it is characterised in that: the variable feedback chamber passes through intermediate seal group
Part is separated into the first variable feedback chamber and the second variable feedback chamber, and the first variable feedback chamber and the second variable feedback chamber pass through respectively
Oil circuit is connect with pump discharge, wherein the first variable feedback chamber is directly communicated with pump discharge, the second variable feedback chamber and pump discharge it
Between oil circuit be equipped with control oil circuit on-off pressure-control valve；The pressure-control valve includes the valve body with inner cavity, and
The spool being mounted in body cavity forms two not connected controls between one end and body cavity wall of the spool
The other end of chamber, the spool is equipped with spring, one transporting room of formation between the middle part and body cavity wall of the spool, and two
Control chamber passes through oil circuit respectively and communicates with main oil gallery, respectively equipped with a switch electricity on two oil circuits between control chamber and main oil gallery
Magnet valve；Position of the spool in body cavity is determined by the size of hydraulic coupling in the elastic force of spring and two control chambers.
In one embodiment, the valve body of the pressure-control valve is equipped with the P mouth of connection pump discharge, the second variable of connection
The A mouth of feedback cavity, the T mouth for being connected to oil sump；When the hydraulic coupling in two control chambers is greater than spring force, hydraulic coupling pushes valve
Core is mobile to spring terminal, is not connected to T mouthfuls for A mouthfuls at this time, and A mouthfuls are connected to via transporting room with P mouthfuls, to allow the pressure oil of pump discharge
Enter that the second variable feedback is intracavitary, the intracavitary pressure oil of two variable feedbacks pushes variable sliding block to the side for reducing discharge capacity jointly
To rotation, until obtaining the pressure set up, spool returns to equilibrium state position；When the hydraulic coupling in two control chambers is less than spring
Elastic force when, spring pushes spool mobile to control chamber end, is not connected to P mouthfuls for A mouthfuls at this time, A mouthfuls via transporting room and T mouthfuls of companies
Logical, the pressure oil for keeping the second variable feedback intracavitary discharges, and variable sliding block is arranged in the case where the elastic force of variable spring is pushed to increase
The direction of amount rotates, and until obtaining the pressure set up, spool returns to equilibrium state position.
In one embodiment, two control chambers in the pressure-control valve are respectively the first control chamber and the second control
Chamber, the first control chamber are controlled by solenoid valve A, and the second control chamber is controlled by solenoid valve B；By to solenoid valve A and solenoid valve B difference
Opened and closed, can be together to form A close B close, A open B close, A close B is opened, A opens A and opens four kinds of different states, to make to press
There are four types of different pressure control modes for force control valve tool.
In one embodiment, the chamber that first control chamber is formed between the end face and body cavity wall of spool one end
Room, the annular chamber that second control chamber is formed between the circumferential surface and body cavity wall of spool one end.
In one embodiment, the valve body is integrally formed with the pump housing.
The beneficial effects of the present invention are: since displacement-variable oil pump is using double feedback cavity configurations, one of feedback cavity
It being connected directly with pump discharge, another feedback cavity is controlled by pressure-control valve, which includes two control chambers, this
Two control chambers are respectively controlled by a switch electromagnetic valve.Four kinds are opened and opened out to two switch electromagnetic valves in Guan Guan, switch, pass
Under different assembled states, make pressure-control valve tool there are four types of different pressure control modes, lubricating oil pump correspondingly also forms four
The different pressure control mode of kind is thus able to satisfy the pressure demand of the various different operating conditions of engine, pastes very much to realize
The pressure of nearly engine actual demand controls target, and power is saved and the continuously variable displacement machine using electro-hydraulic proportional valve control
Oil pump is very close, and control model logic of the invention is simple and reliable, and rapidly, pressure control is stablized, pressure oscillation for response
It is small.
Detailed description of the invention
Fig. 1 is the control structure schematic diagram of the displacement-variable oil pump in the embodiment of the present invention；
Appended drawing reference are as follows:
1 --- rotational positioning pin 2 --- pump housing 3 --- variable sliding block
4 --- the first variable feedback chamber 5 --- intermediate seal component 6 --- second variable feedback chambers
7 --- seal assembly 8 --- variable spring 9 --- pressure-control valves
10 --- spring 11 --- spool 12 --- first control chambers
13 --- the second control chamber 14 --- transporting room 15 --- solenoid valve A
16 --- A mouthfuls of solenoid valve B 17 --- P mouth 18 ---
19 --- T mouthfuls.
Specific embodiment
For the ease of the understanding of those skilled in the art, the present invention is made further below 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 " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.In the description of the present invention, the meaning of " plurality " is two or two
More than, unless otherwise specifically defined.In the description of the present invention, it should be noted that 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, are also possible to two
Connection inside element, can be directly connected, can also indirectly connected through an intermediary, for the ordinary skill of this field
For personnel, the concrete meaning of the term can be understood as the case may be.
As shown in Figure 1, the preferred embodiment of the present invention is: a kind of variable row of three-level or level Four based on biswitch solenoid valve
Lubricating oil pump, including rotational positioning pin 1, the pump housing 2, variable sliding block 3, seal assembly 7, variable spring 8 are measured, middle pump body 2, variable are sliding
The enclosed volume formation variable feedback chamber that block 3 and seal assembly 7 are collectively formed plus pump cover, and will by intermediate seal component 5
The variable feedback chamber is separated into the first variable feedback chamber 4 and the second variable feedback chamber 6, the first variable feedback chamber 4 and the second variable
Feedback cavity 6 is connect with pump discharge by oil circuit respectively, wherein the first variable feedback chamber 4 pass through oil circuit directly with pump discharge oil pressure phase
Logical, the oil circuit between the second variable feedback chamber 6 and pump discharge is equipped with the pressure-control valve 9 of control oil circuit on-off.The pressure
Control valve 9 includes the valve body with inner cavity, and the spool 11 being mounted in body cavity, one end of the spool 11 and valve body
Two not connected control chambers 12,13 are formed between internal chamber wall, the other end of the spool 11 is equipped with spring 10, the spool
A transporting room 14 is formed between 11 middle part and body cavity wall,；Two control chambers 12,13 pass through oil circuit and main oil gallery respectively
It communicates, a switch electromagnetic valve 15,16 is respectively housed on the oil circuit between two control chambers 12,13 and main oil gallery；The spool 11
Position in body cavity determines by the size of hydraulic coupling in the elastic force of spring 10 and two control chambers, the valve body and the pump housing
2 are integrally formed.
As shown in Figure 1, P mouth 17, connection second variable of the valve body of the pressure-control valve equipped with connection pump discharge are anti-
It presents the A mouth 18 of chamber 6, be connected to the T mouth 19 of oil sump；When the hydraulic coupling of 11 left end of spool is greater than the set pressure of spring 10, pressure
The P mouth 17 of force control valve 9 is connected to A mouth 18 via transporting room 14, the pressure to 6 repairing of the second variable feedback chamber, in feedback cavity
Oil pushes variable sliding block 3 to rotate around rotational positioning pin 1 to the direction for reducing discharge capacity, until obtaining the pressure set up, spool 11
Return to equilibrium state position.When 11 left end hydraulic coupling of spool is less than the set pressure of spring 10, the A mouth 18 of pressure-control valve 9
It is connected to T mouth 19 via transporting room 14, discharges the pressure oil of the second variable feedback chamber 6, variable sliding block 3 is in variable spring
8 elastic force effect is lower to rotate around rotational positioning pin 1 to the direction for increasing discharge capacity, and until obtaining the pressure set up, spool 11 is returned
To equilibrium state position.
As shown in Figure 1, two control chambers in the pressure-control valve 9 are respectively the first control chamber 12 and the second control chamber
13, the chamber that first control chamber 12 is formed between the end face and body cavity wall of spool one end, second control chamber
13 annular chambers formed between the circumferential surface and body cavity wall of spool one end；First control chamber 12 is controlled by solenoid valve A15,
Second control chamber 13 is controlled by solenoid valve B16；By being opened and closed respectively to solenoid valve A15 and solenoid valve B16, can be total to
Close that B is closed, A opens that B is closed, A closes that B is opened, A opens A and opens four kinds of different states with A is combined into, to make the tool of pressure-control valve 9 there are four types of not
Same pressure control mode.
It elaborates below to the course of work of two switch electromagnetic valves, four kinds of states.
When two switch electromagnetic valves, which are in A, closes B off status, the first control chamber 12 and the second control chamber 13 are in no pressure
State, lubricating oil pump carry out variable feedback under the pressure effect in the first variable feedback chamber 4, high voltage control mode are in, in height
Engine lubrication safety is mainly considered under pressure control model, fuel-economizing contributes accounting not high, it is possible to feed back using pump discharge
Control.
When two switch electromagnetic valves, which are in A, opens B off status, the second control chamber 13 is in passive state, the first control chamber
12 communicate with main oil gallery pressure, and lubricating oil pump carries out variable under 6 collective effect of the first variable feedback chamber 4 and the second variable feedback chamber
Feedback.When the hydraulic coupling of the first control chamber 12 is greater than the setting power of spring 10,18 phase of P mouth 17 and A mouth of pressure-control valve 9
Logical, to 6 repairing of the second variable feedback chamber, the pressure oil in feedback cavity pushes variable sliding block 3 to arrange around rotational positioning pin 1 to reduction
The direction of amount rotates, and until obtaining the pressure set up, spool 11 returns to equilibrium state position.When the hydraulic coupling of the first control chamber 12
Less than spring 10 set pressure when, the A mouth 18 of pressure-control valve 9 is communicated with T mouth 19, to 6 oil extraction of the second variable feedback chamber, is become
The elastic force of amount spring 8 pushes variable sliding block 3 to rotate around rotational positioning pin 1 to the direction for increasing discharge capacity, sets up until acquisition
Pressure, spool 11 return to equilibrium state position.Oil pump is in sub-high pressure pressure control state at this time.
When two switch electromagnetic valves, which are in A, closes B open state, the first control chamber 12 is in passive state, the second control chamber
13 communicate with main oil gallery pressure, and lubricating oil pump carries out variable under 6 collective effect of the first variable feedback chamber 4 and the second variable feedback chamber
Feedback.When the hydraulic coupling of the second control chamber 13 is greater than the setting power of spring 10,18 phase of P mouth 17 and A mouth of pressure-control valve 9
Logical, to 6 repairing of the second variable feedback chamber, the pressure oil in feedback cavity pushes variable sliding block 3 to arrange around rotational positioning pin 1 to reduction
The direction of amount rotates, and until obtaining the pressure set up, spool 11 returns to equilibrium state position.When the hydraulic coupling of the second control chamber 13
Less than spring 10 setting power when, the A mouth 18 of pressure-control valve 9 is communicated with T mouth 19, to 6 oil extraction of the second variable feedback chamber, variable
The elastic force of spring 8 pushes variable sliding block 3 to rotate around rotational positioning pin 1 in the direction for increasing discharge capacity, until obtaining the pressure set up
Power, spool 11 return to equilibrium state position.Oil pump is in time low pressure state of a control at this time.
When two switch electromagnetic valves, which are in A, opens B open state, the first control chamber 12 and the second control chamber 13 are and main oil gallery
Pressure communicates, and lubricating oil pump carries out variable feedback under 6 collective effect of the first variable feedback chamber 4 and the second variable feedback chamber.When
When the common hydraulic coupling of one control chamber 12 and the second control chamber 13 is greater than the setting power of spring 10, the P mouth and A of pressure-control valve 9
It mouthful communicates, to 6 repairing of the second variable feedback chamber, the pressure oil in feedback cavity pushes variable sliding block 3 around rotational positioning pin 1 to subtracting
The direction of few discharge capacity rotates, and until obtaining the pressure set up, spool 11 returns to equilibrium state position.When the first control chamber 12 and
When the common hydraulic coupling of two control chambers 13 is less than the setting power of spring 10, the A mouth of pressure-control valve 9 is communicated with T mouthfuls, is become to second
6 oil extraction of feedback cavity is measured, the elastic force of variable spring 8 pushes variable sliding block 3 to revolve around rotational positioning pin 1 to the direction for increasing discharge capacity
Turn, until obtaining the pressure set up, spool 11 returns to equilibrium state position.Oil pump is in low pressure state of a control at this time.
In above-mentioned four kinds of states, A, which opens B off status, may be designed to time low pressure control model, and correspondingly A closes B open state
It can also be designed to sub-high pressure pressure control mode.
Above-described embodiment is the preferable implementation of the present invention, and in addition to this, the present invention can be realized with other way,
Do not depart from the technical program design under the premise of it is any obviously replace it is within the 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, the element that those of ordinary skill in the art should be aware that these are omitted also may make up the contents of the present invention.
Claims (5)
1. a kind of three-level or level Four displacement-variable oil pump based on biswitch solenoid valve, including the pump housing (2), variable sliding block (3),
Variable spring (8) and variable feedback chamber, the variable feedback chamber are separated into the first variable feedback chamber by intermediate seal component (5)
(4) pass through oil circuit respectively with the second variable feedback chamber (6), the first variable feedback chamber (4) and the second variable feedback chamber (6) and pump out
Mouth connection, wherein the first variable feedback chamber (4) is directly communicated with pump discharge, between the second variable feedback chamber (6) and pump discharge
Oil circuit is equipped with the pressure-control valve (9) of control oil circuit on-off；It is characterized by: the pressure-control valve (9) includes in having
The valve body of chamber, and the spool (11) being mounted in body cavity, shape between one end and body cavity wall of the spool (11)
At two not connected control chambers (12,13), the other end of the spool (11) is equipped with spring (10), the spool (11)
A transporting room (14) is formed between middle part and body cavity wall, two control chambers (12,13) pass through oil circuit and main oil gallery respectively
It communicates, a switch electromagnetic valve is respectively housed on the oil circuit between two control chambers (12,13) and main oil gallery；The spool (11) exists
Position in body cavity is determined by the elastic force of spring (10) and the size of two interior hydraulic couplings of control chamber (12,13).
2. the three-level or level Four displacement-variable oil pump, feature according to claim 1 based on biswitch solenoid valve exists
In: the valve body of the pressure-control valve (9) is equipped with the A mouth of the P mouth (17) of connection pump discharge, the second variable feedback chamber of connection
(18), it is connected to the T mouth (19) of oil sump；When the hydraulic coupling in two control chambers (12,13) is greater than the elastic force of spring (10), liquid
Pressure pushes spool (11) mobile to spring terminal, is not connected to T mouthfuls (19) for A mouthfuls (18) at this time, A mouthfuls (18) via transporting room (14)
It is connected to P mouthfuls (17), so that the pressure oil of pump discharge be allowed to enter in the second variable feedback chamber (6), two variable feedbacks are intracavitary
Pressure oil push jointly variable sliding block (3) to reduce discharge capacity direction rotate, until obtain set up pressure, spool (11) return
To equilibrium state position；When the hydraulic coupling in two control chambers (12,13) is less than the elastic force of spring (10), spring (10) is pushed
Spool (11) is mobile to control chamber end, is not connected to P mouthfuls (17) for A mouthfuls (18) at this time, A mouthfuls (18) via transporting room (14) and T mouthfuls
(19) it is connected to, discharges the pressure oil in the second variable feedback chamber (6), elastic force of the variable sliding block (3) in variable spring (8)
It is rotated under promotion to the direction for increasing discharge capacity, until obtaining the pressure set up, spool (11) returns to equilibrium state position.
3. the three-level or level Four displacement-variable oil pump according to claim 1 or 2 based on biswitch solenoid valve, feature
Be: two control chambers (12,13) in the pressure-control valve (9) are respectively the first control chamber (12) and the second control chamber
(13), the first control chamber (12) is controlled by solenoid valve A(15), and the second control chamber (13) is controlled by solenoid valve B(16)；By to electricity
Magnet valve A(15) and solenoid valve B(16) opened and closed respectively, the pass the A pass B can be together to form, A opens the pass B, B is opened, A is opened for the pass A
A opens four kinds of different states, so that pressure-control valve be made to form four kinds of different pressure control modes.
4. the three-level or level Four displacement-variable oil pump, feature according to claim 3 based on biswitch solenoid valve exists
In: the chamber formed between the end face and body cavity wall that first control chamber (12) is spool (11) one end, described second
The annular chamber that control chamber (13) is formed between the circumferential surface and body cavity wall of spool (11) one end.
5. the three-level or level Four displacement-variable oil pump according to claim 1 or 2 based on biswitch solenoid valve, feature
Be: the valve body is integrally formed with the pump housing (2).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711021757.9A CN107605720B (en) | 2017-10-27 | 2017-10-27 | A kind of three-level or level Four displacement-variable oil pump based on biswitch solenoid valve |
| EP18865337.2A EP3524816A4 (en) | 2017-10-27 | 2018-08-01 | Dual switch electromagnetic valve-based level 3 or level 4 variable displacement oil pump |
| PCT/CN2018/097838 WO2019080570A1 (en) | 2017-10-27 | 2018-08-01 | Dual switch electromagnetic valve-based level 3 or level 4 variable displacement oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711021757.9A CN107605720B (en) | 2017-10-27 | 2017-10-27 | A kind of three-level or level Four displacement-variable oil pump based on biswitch solenoid valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107605720A CN107605720A (en) | 2018-01-19 |
| CN107605720B true CN107605720B (en) | 2019-06-28 |
Family
ID=61080110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711021757.9A Active CN107605720B (en) | 2017-10-27 | 2017-10-27 | A kind of three-level or level Four displacement-variable oil pump based on biswitch solenoid valve |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3524816A4 (en) |
| CN (1) | CN107605720B (en) |
| WO (1) | WO2019080570A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605720B (en) * | 2017-10-27 | 2019-06-28 | 湖南机油泵股份有限公司 | A kind of three-level or level Four displacement-variable oil pump based on biswitch solenoid valve |
| CN108894982B (en) * | 2018-08-21 | 2023-12-05 | 湖南机油泵股份有限公司 | Variable displacement vane pump with seal compensation function |
| CN110017190B (en) * | 2019-05-14 | 2023-12-26 | 富奥汽车零部件股份有限公司 | Method and device for controlling two-stage variable oil pump by combined valve |
| CN110594471B (en) * | 2019-09-03 | 2024-09-20 | 海力达汽车科技有限公司 | Electromagnetic valve body assembly capable of reducing machining difficulty |
| CN111114636B (en) * | 2020-02-10 | 2024-07-05 | 北京汽车集团越野车有限公司 | Valve block structure and vehicle with same |
| CN112360589B (en) * | 2020-11-17 | 2022-03-11 | 湖南机油泵股份有限公司 | Full-variable displacement oil pump integrated with safety valve functional slide block |
| CN112228180B (en) * | 2020-11-20 | 2024-05-17 | 湖南机油泵股份有限公司 | Two-stage variable control system based on rotor pump |
| CN113217797B (en) * | 2021-05-24 | 2022-10-11 | 湖南机油泵股份有限公司 | Two-stage variable control system based on variable pump |
| CN114215744B (en) * | 2021-12-28 | 2023-04-07 | 湖南机油泵股份有限公司 | Two-stage variable oil pump and system jointly controlled by slide valve and switch electromagnetic valve |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3739215B2 (en) * | 1998-09-28 | 2006-01-25 | カヤバ工業株式会社 | Variable displacement vane pump |
| US8202061B2 (en) * | 2006-09-26 | 2012-06-19 | Magna Powertrain Inc. | Control system and method for pump output pressure control |
| WO2012149929A2 (en) * | 2011-05-05 | 2012-11-08 | Ixetic Bad Homburg Gmbh | Variable displacement pump |
| JP5814218B2 (en) * | 2012-11-30 | 2015-11-17 | 株式会社山田製作所 | Internal gear pump |
| EP2971779B1 (en) * | 2013-03-13 | 2020-08-05 | Magna Powertrain FPC Limited Partnership | Vane pump with multiple control chambers |
| CN103671093B (en) * | 2013-12-05 | 2016-03-09 | 宁波圣龙汽车动力系统股份有限公司 | A kind of variable displacement vane pump |
| EP3087276B1 (en) * | 2013-12-23 | 2020-03-11 | VHIT S.p.A. | Variable displacement pump and method for regulating the displacement of the pump |
| JP6289943B2 (en) * | 2014-03-10 | 2018-03-07 | 日立オートモティブシステムズ株式会社 | Variable displacement pump |
| JP6107884B2 (en) * | 2015-05-28 | 2017-04-05 | マツダ株式会社 | Engine oil pump control device |
| CN207485654U (en) * | 2017-10-27 | 2018-06-12 | 湖南机油泵股份有限公司 | A kind of three-level or level Four displacement-variable oil pump based on biswitch solenoid valve |
| CN107605720B (en) * | 2017-10-27 | 2019-06-28 | 湖南机油泵股份有限公司 | A kind of three-level or level Four displacement-variable oil pump based on biswitch solenoid valve |
-
2017
- 2017-10-27 CN CN201711021757.9A patent/CN107605720B/en active Active
-
2018
- 2018-08-01 WO PCT/CN2018/097838 patent/WO2019080570A1/en unknown
- 2018-08-01 EP EP18865337.2A patent/EP3524816A4/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP3524816A1 (en) | 2019-08-14 |
| EP3524816A4 (en) | 2020-06-03 |
| CN107605720A (en) | 2018-01-19 |
| WO2019080570A1 (en) | 2019-05-02 |
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Denomination of invention: A three-stage or four-stage variable displacement oil pump based on double switch solenoid valve Effective date of registration: 20211224 Granted publication date: 20190628 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: 20190628 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 three-stage or four-stage variable displacement oil pump based on double-switch solenoid valve Effective date of registration: 20230130 Granted publication date: 20190628 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 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 Patentee before: Hunan Oil Pump Co.,Ltd. Country or region before: China |
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