CN208594985U - A kind of three-level change displacement control system based on two-chamber feedback - Google Patents
A kind of three-level change displacement control system based on two-chamber feedback Download PDFInfo
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- CN208594985U CN208594985U CN201821346505.3U CN201821346505U CN208594985U CN 208594985 U CN208594985 U CN 208594985U CN 201821346505 U CN201821346505 U CN 201821346505U CN 208594985 U CN208594985 U CN 208594985U
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Abstract
The utility model provides a kind of three-level change displacement control system based on two-chamber feedback, including vane pump, mechanical valve, solenoid valve, the vane pump includes the pump housing, variable sliding block, variable spring and variable feedback chamber, variable feedback chamber is separated into A chamber and B chamber by intermediate seal component, A chamber between pump discharge or main oil gallery be equipped with the first oil inlet passage and the second oil inlet passage in parallel, it is equipped with third oil inlet passage between B chamber and pump discharge or main oil gallery, the first drain path is equipped between B chamber and oil sump；Solenoid valve is located on the first oil inlet passage, the second drain path is equipped between the T mouth and oil sump of solenoid valve, second oil inlet passage, third oil inlet passage, the first drain path and the second drain path on-off controlled by mechanical valve, the state in a connection then another closing between the second oil inlet passage and third oil inlet passage.The utility model can realize that three stage pressures become row's control, become row compared to second level, engine oil pressure curve keeps engine more energy saving closer to engine demand.
Description
Technical field
The utility model relates to lubricating system of IC engine technical field, especially a kind of lubricating oil pump of three-level variable displacement.
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.Also, the two-chamber of conventional switch electromagnetic valve control at present becomes displacement oil pump can only realize that secondary pressure becomes mostly
Row's control.
Utility model content
It is provided a kind of novel based on two-chamber feedback the purpose of the utility model is to overcome the above-mentioned insufficient of the prior art
Three-level become displacement control system.
The technical solution of the utility model is: a kind of three-level change displacement control system based on two-chamber feedback, including blade
Pump, mechanical valve, solenoid valve, the vane pump include the pump housing, variable sliding block, variable spring and variable feedback chamber, and the variable is anti-
Feedback chamber is separated into A chamber and B chamber by intermediate seal component, the A chamber between pump discharge or main oil gallery equipped in parallel first
Oil inlet passage and the second oil inlet passage, between the B chamber and pump discharge or main oil gallery be equipped with third oil inlet passage, the B chamber with
The first drain path is equipped between oil sump；The solenoid valve is located on first oil inlet passage, the P mouth of the solenoid valve with
Pump discharge or main oil gallery communicate, A mouthfuls communicated with A chamber, T mouthfuls between oil sump be equipped with the second drain path, second oil inlet
Channel, third oil inlet passage, the first drain path and the second drain path on-off controlled by the mechanical valve, the second oil inlet
The state of then another closing is connected between channel and third oil inlet passage in one.
In one embodiment, the mechanical valve includes the valve body with inner cavity, and the valve being mounted in body cavity
Core and spring, form a control chamber between one end and body cavity wall of the spool, the other end of the spool is equipped with bullet
Spring chamber, the control chamber are connected with pump discharge or main oil gallery, and the spring cavity is connected with oil sump；The middle part of the spool and valve
The first transporting room and the second transporting room are formed between internal cavity wall, the valve body is equipped with the A1 mouth of connection pump discharge or main oil gallery
With B1 mouthfuls, the A2 mouth that is connected to A chamber, B2 mouth for being connected to B chamber, the B3 mouth for being connected to oil sump, solenoid valve T mouthfuls of connection T1 mouth；It is described
Oil pressure size of the spool in elastic force and control chamber of the position in valve body (51) inner cavity by spring determines.
The working condition of the control system of the utility model includes following several:
1) when engine is in middle low speed, solenoid valve be in electricity condition, the P mouth of solenoid valve are connected to A mouthfuls, pump at this time
Pressure oil in outlet or main oil gallery enters A chamber by the first oil inlet passage；The B1 mouth of mechanical valve passes through the second transfer with B2 mouthfuls
Room communicates, and third oil inlet passage is made to be in connected state, the pressure oil in pump discharge or main oil gallery by third oil inlet passage into
Enter B chamber；When the oil pressure of pump discharge or main oil gallery rises to setting pressure, variable sliding block is under the intracavitary oil pressure effect of A chamber and B
It rotates clockwise, machine oil pumpage is made to become smaller, realize that level-one becomes row；
2) after engine speed reaches design speed, third oil inlet passage continues to keep connected state, and ECU controls electromagnetism
Valve changes to power loss mode by obtaining cutting, is in an off state the first oil inlet passage, at this time the P mouth of solenoid valve and A mouthfuls of disconnections, A
Mouthful be connected to T mouthfuls, A mouth of the A chamber through solenoid valve, T mouthfuls, the T1 mouth of mechanical valve, spring cavity be connected to oil sump, A intracavitary pressure
It reduces, variable sliding block rotates counterclockwise under the action of variable spring, increases machine oil pumpage, and engine oil pressure rises；
3) solenoid valve continues to keep power failure state, and when change row pressure power, which reaches second level, becomes row pressure power, variable sliding block is in B chamber pressure
Overcome the elastic force of variable spring to rotate clockwise under power effect, machine oil pumpage is made to become smaller, realizes that second level becomes row；
4) solenoid valve continues to keep power failure state, and as engine speed rises, the oil pressure of pump discharge or main oil gallery enters
It in mechanical valve control chamber and pushes spool mobile to spring cavity, is in an off state third oil inlet passage, the first drain path
In connected state, B intracavitary pressure oil successively pass through the B2 mouth of mechanical valve, the second transporting room, B3 mouthfuls be flowed into oil sump, with
The oil pressure of B chamber become smaller, variable sliding block rotates counterclockwise under the action of variable spring, so that machine oil pumpage is become larger, engine
Oil pressure increases；As oil pressure continues to increase, when reaching three-level change row pressure power, it is mobile to spring cavity that oil pressure pushes spool to continue, machine
The A1 mouth of tool valve and A2 mouthfuls are communicated by the first transporting room, and the second oil inlet passage is made to be in connected state, at the second drain path
In off-state, the pressure oil in pump discharge or main oil gallery enters A chamber by the second oil inlet passage, and A chamber oil pressure increases, variable
Sliding block overcomes variable spring to rotate clockwise under the oil pressure effect of A chamber, and machine oil pumpage is made to become smaller, and realizes that three-level becomes row.
In one embodiment, the first transporting room and the second transporting room of the mechanical valve are in the middle part and valve body of spool
The annular chamber formed between cavity wall.
Preferably, the valve body is integrally formed with the pump housing.
The beneficial effects of the utility model are: the utility model, which can make two-chamber become displacement oil pump, realizes that three stage pressures become row
Control becomes row compared to second level, and engine oil pressure curve keeps engine more energy saving closer to engine demand.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the control system in the utility model embodiment；
Fig. 2 is the working state schematic representation of the control system in the utility model embodiment；
Appended drawing reference are as follows:
1 --- the pump housing 2 --- variable sliding block 3 --- variable spring
4 --- solenoid valve 5 --- mechanical valve 6 --- first oil inlet passages
7 --- the second oil inlet passage 8 --- third oil inlet passage 9 --- first drain paths
10 --- the second drain path 51 --- valve body 52 --- spools
53 --- control chamber 54 --- spring 55 --- transporting rooms.
Specific embodiment
For the ease of the understanding of those skilled in the art, the utility model is made below with reference to embodiment and attached drawing further
Explanation, the content that embodiment refers to not is restriction to the utility model.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise " be based on the orientation or positional relationship shown in the drawings, be only for
Convenient for description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have specifically
Orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present 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 or more, unless otherwise specifically defined.In the description of the present invention, it should be noted that unless otherwise rule
Fixed and restriction, term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection,
It can be the connection inside two elements, can be directly connected, it can also indirectly connected through an intermediary, for this field
Those of ordinary skill for, can understand the concrete meaning of the term as the case may be.
As shown in Figure 1, the preferred embodiment of the utility model is: a kind of three-level change displacement control system based on two-chamber feedback
System, including vane pump, solenoid valve 4, mechanical valve 5, the vane pump include that the pump housing 1, variable sliding block 2, variable spring 3 and variable are anti-
Chamber is presented, the variable feedback chamber is separated into A chamber and B chamber by intermediate seal component, sets between A chamber and pump discharge or main oil gallery
There are the first oil inlet passage 6 and the second oil inlet passage 7 in parallel, third oil inlet passage is equipped between B chamber and pump discharge or main oil gallery
8, the first drain path 9 is equipped between the B chamber and oil sump；The solenoid valve 4 is located on first oil inlet passage 6, electricity
The P mouth of magnet valve 4 is communicated with pump discharge or main oil gallery, A mouthfuls communicated with A chamber, T mouthfuls between oil sump be equipped with the second drain path
10, second oil inlet passage 7, third oil inlet passage 8, the first drain path 9 and the second drain path 10 on-off by machine
Tool valve 5 controls, and is connected to the state of then another closing between the second oil inlet passage 7 and third oil inlet passage 8 in one.
As shown in Figure 1, mechanical valve 5 includes the valve body 51 with inner cavity, and the spool 52 being mounted in 51 inner cavity of valve body
And spring, a control chamber 53 is formed between 51 internal chamber wall of one end and valve body of spool 52, the other end of spool 52 is equipped with spring
Chamber 54, control chamber 53 are connected with main oil gallery, and spring cavity 54 is connected with oil sump；The middle part of the spool 52 and 51 internal chamber wall of valve body
Between form cricoid first transporting room 55 and the second transporting room 56；The valve body 51 is equipped with the A1 mouth and B1 of connection main oil gallery
Mouth, the A2 mouth for being connected to A chamber, the B2 mouth for being connected to B chamber, the B3 mouth for being connected to oil sump, the T1 mouth for being connected to solenoid valve T mouthfuls；Spool 52 exists
Position in 51 inner cavity of valve body is determined by the oil pressure size in the elastic force and control chamber 53 of spring 54；As a preferred option, valve
Body 51 is integrally formed with the pump housing 1.
As shown in Figure 1, 2, the working condition of the control system of the utility model includes following several:
1) when engine is in middle low speed, solenoid valve 4 be in electricity condition, the P mouth of solenoid valve 4 are connected to A mouthfuls, at this time
Pressure oil in main oil gallery enters A chamber by the first oil inlet passage 6；The B1 mouth of mechanical valve passes through 56 phase of the second transporting room with B2 mouthfuls
It is logical, so that third oil inlet passage 8 is in connected state, the pressure oil in main oil gallery enters B chamber by third oil inlet passage 8；Work as master
When the oil pressure of oil duct rises to setting pressure, variable sliding block 2 rotates clockwise under the intracavitary oil pressure effect of A chamber and B, makes machine oil
Pumpage becomes smaller, and realizes that level-one becomes row, sees the curve state two of Fig. 2；
2) after engine speed reaches design speed, third oil inlet passage 8 continues to keep connected state, ECU control electricity
Magnet valve 4 changes to power loss mode by obtaining cutting, is in an off state the first oil inlet passage 6, and the P mouth of solenoid valve 4 breaks with A mouthfuls at this time
Open, A mouthfuls are connected to T mouthfuls, A mouth of the A chamber through solenoid valve 4, T mouthfuls, the second drain path 10 be connected to oil sump, A intracavitary pressure
It reducing, variable sliding block 2 rotates counterclockwise under the action of variable spring 3, increases machine oil pumpage, and engine oil pressure rises,
See the curve state three of Fig. 2；
3) solenoid valve 4 continues to keep power failure state, and when change row pressure power, which reaches second level, becomes row pressure power, variable sliding block 2 is in B chamber
Overcome the elastic force of variable spring 3 to rotate clockwise under pressure effect, machine oil pumpage is made to become smaller, realizes that second level becomes row, see Fig. 2's
Curve state four；
4) solenoid valve 4 continues to keep power failure state, and as engine speed rises, the oil pressure of main oil gallery enters mechanical valve control
It in chamber 53 processed and pushes spool 52 mobile to spring cavity 54, is in an off state third oil inlet passage 8, the first drain path 9
In connected state, B intracavitary pressure oil successively pass through the B2 mouth of mechanical valve 5, the second transporting room 56, B3 mouthfuls be flowed into oily bottom
Shell, the oil pressure with B chamber become smaller, and variable sliding block 2 rotates counterclockwise under the action of variable spring 3, and machine oil pumpage is made to become larger,
Engine oil pressure increases, and sees the curve state five of Fig. 2；As oil pressure continues to increase, when reaching three-level change row pressure power, oil pressure is pushed
Spool 52 continues to the movement of spring cavity 54, and the A1 mouth of mechanical valve 5 is communicated with A2 mouthfuls by the first transporting room 55, keeps the second oil inlet logical
Road 7 is in connected state, and the second drain path 10 is in an off state, the pressure oil in pump discharge or main oil gallery by second into
Oily channel 7 enters A chamber, and A chamber oil pressure increases, and variable sliding block overcomes variable spring to rotate clockwise under the oil pressure effect of A chamber,
So that machine oil pumpage is become smaller, realizes that three-level becomes row, see the curve state six of Fig. 2.
The utility model can make two-chamber become displacement oil pump realization three stage pressures change row's control, arrange, start compared to second level change
Oil pressure curve keeps engine more energy saving closer to engine demand.
Above-described embodiment is the preferable implementation of the utility model, and in addition to this, the utility model can be with other sides
Formula realizes that any obvious replacement is in the protection model of the utility model under the premise of not departing from the technical program design
Within enclosing.
In order to allow those of ordinary skill in the art more easily understand the improvement of the utility model compared with the existing technology it
Place, some attached drawings of the utility model and description have been simplified, and for the sake of clarity, present specification is omitted one
A little other elements, the element that those of ordinary skill in the art should be aware that these are omitted also may make up the interior of the utility model
Hold.
Claims (5)
1. a kind of three-level based on two-chamber feedback becomes displacement control system, including vane pump, solenoid valve (4), mechanical valve (5), institute
Stating vane pump includes the pump housing (1), variable sliding block (2), variable spring (3) and variable feedback chamber, it is characterised in that: the variable is anti-
Feedback chamber is separated into A chamber and B chamber by intermediate seal component, the A chamber between pump discharge or main oil gallery equipped in parallel first
Oil inlet passage (6) and the second oil inlet passage (7) are equipped with third oil inlet passage (8) between the B chamber and pump discharge or main oil gallery,
The first drain path (9) are equipped between the B chamber and oil sump；The solenoid valve (4) is located at first oil inlet passage (6)
On, the P mouth of the solenoid valve (4) is communicated with pump discharge or main oil gallery, A mouthfuls communicated with A chamber, T mouthfuls the is equipped between oil sump
Two drain paths (10), second oil inlet passage (7), third oil inlet passage (8), the first drain path (9) and the second draining
The on-off in channel (10) is controlled by the mechanical valve (5), is between the second oil inlet passage (7) and third oil inlet passage (8)
One is connected to the state of then another closing.
2. the three-level according to claim 1 based on two-chamber feedback becomes displacement control system, it is characterised in that: the machinery
Valve (5) includes the valve body (51) with inner cavity, and the spool (52) and spring that are mounted in valve body (51) inner cavity, the spool
(52) control chamber (53) is formed between one end and valve body (51) internal chamber wall, the other end of the spool (52) is equipped with spring
Chamber (54), the control chamber (53) are connected with pump discharge or main oil gallery, and the spring cavity (54) is connected with oil sump；The spool
(52) the first transporting room (55) and the second transporting room are formed between middle part and valve body (51) internal chamber wall, is set on the valve body (51)
Have connection pump discharge or main oil gallery A1 mouth and B1 mouthfuls, the A2 mouth that is connected to A chamber, the B2 mouth of connection B chamber, connection oil sump B3
Mouth, the T1 mouth for being connected to solenoid valve T mouthfuls；Position of the spool (52) in valve body (51) inner cavity by spring elastic force and control chamber
(53) the oil pressure size in determines.
3. the three-level according to claim 1 or 2 based on two-chamber feedback becomes displacement control system, which is characterized in that its work
Include following several as state:
1) when engine is in middle low speed, solenoid valve (4) be in electricity condition, the P mouth of solenoid valve (4) are connected to A mouthfuls, at this time
Pressure oil in pump discharge or main oil gallery enters A chamber by the first oil inlet passage (6)；The B1 mouth of mechanical valve (5) passes through with B2 mouthfuls
Second transporting room (56) communicates, and third oil inlet passage (8) is made to be in connected state, and the pressure oil in pump discharge or main oil gallery passes through
Third oil inlet passage (8) enters B chamber；When the oil pressure of pump discharge or main oil gallery rises to setting pressure, variable sliding block (2) is in A
Chamber and B it is intracavitary oil pressure effect under rotate clockwise, so that machine oil pumpage is become smaller, realize level-one become row；
2) after engine speed reaches design speed, third oil inlet passage (8) continues to keep connected state, and ECU controls electromagnetism
Valve (4) changes to power loss mode by obtaining cutting, is in an off state the first oil inlet passage (6), at this time the P mouth and A of solenoid valve (4)
It mouthful disconnects, A mouthful are connected to T mouthfuls, A mouth of the A chamber through solenoid valve (4), T mouthfuls, the T1 mouth of mechanical valve (5), spring cavity (54) and oil bottom
Shell connection, A intracavitary pressure reduction, variable sliding block (2) rotate counterclockwise under the action of variable spring (3), arrange lubricating oil pump
Amount increases, and engine oil pressure rises；
3) solenoid valve (4) continues to keep power failure state, and when change row pressure power, which reaches second level, becomes row pressure power, variable sliding block (2) is in B chamber
Overcome the elastic force of variable spring (3) to rotate clockwise under pressure effect, machine oil pumpage is made to become smaller, realizes that second level becomes row；
4) solenoid valve (4) continues to keep power failure state, and as engine speed rises, the oil pressure of pump discharge or main oil gallery enters machine
It in tool valve control chamber (53) and pushes spool (52) mobile to spring cavity (54), is in an off state third oil inlet passage (8),
First drain path (9) is in connected state, and B intracavitary pressure oil successively passes through B2 mouth, the second transporting room of mechanical valve (5)
(55), it is flowed into oil sump for B3 mouthfuls, the oil pressure with B chamber becomes smaller, variable sliding block (2) inverse time under the action of variable spring (3)
Needle rotation, makes machine oil pumpage become larger, and engine oil pressure increases；As oil pressure continues to increase, when reaching three-level change row pressure power, oil
It is mobile to spring cavity (54) that pressure pushes spool (52) to continue, and the A1 mouth of mechanical valve (5) passes through the first transporting room (55) phase with A2 mouthfuls
It is logical, so that the second oil inlet passage (7) is in connected state, the second drain path (10) is in an off state, pump discharge or main oil gallery
Interior pressure oil enters A chamber by the second oil inlet passage (7), and A chamber oil pressure increases, and variable sliding block (2) is acted in the oil pressure of A chamber
Under overcome variable spring (3) to rotate clockwise, so that machine oil pumpage is become smaller, realize three-level become row.
4. the three-level according to claim 1 or 2 based on two-chamber feedback becomes displacement control system, it is characterised in that: described
The first transporting room (55) of mechanical valve (5) and the second transporting room are formed between the middle part and valve body (51) internal chamber wall of spool (52)
Annular chamber.
5. the three-level according to claim 1 or 2 based on two-chamber feedback becomes displacement control system, it is characterised in that: described
Valve body (51) is integrally formed with the pump housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821346505.3U CN208594985U (en) | 2018-08-21 | 2018-08-21 | A kind of three-level change displacement control system based on two-chamber feedback |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821346505.3U CN208594985U (en) | 2018-08-21 | 2018-08-21 | A kind of three-level change displacement control system based on two-chamber feedback |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208594985U true CN208594985U (en) | 2019-03-12 |
Family
ID=65605144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821346505.3U Withdrawn - After Issue CN208594985U (en) | 2018-08-21 | 2018-08-21 | A kind of three-level change displacement control system based on two-chamber feedback |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208594985U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798823A (en) * | 2018-08-21 | 2018-11-13 | 湖南机油泵股份有限公司 | A kind of three-level change displacement control system based on two-chamber feedback |
-
2018
- 2018-08-21 CN CN201821346505.3U patent/CN208594985U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798823A (en) * | 2018-08-21 | 2018-11-13 | 湖南机油泵股份有限公司 | A kind of three-level change displacement control system based on two-chamber feedback |
| CN108798823B (en) * | 2018-08-21 | 2023-08-18 | 湖南机油泵股份有限公司 | Three-stage variable displacement control system based on double-cavity feedback |
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Granted publication date: 20190312 Effective date of abandoning: 20230818 |