CN204024752U - The control system of a kind of single-acting chamber main oil gallery feedback variable displacement vane pump - Google Patents
The control system of a kind of single-acting chamber main oil gallery feedback variable displacement vane pump Download PDFInfo
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- CN204024752U CN204024752U CN201420299065.6U CN201420299065U CN204024752U CN 204024752 U CN204024752 U CN 204024752U CN 201420299065 U CN201420299065 U CN 201420299065U CN 204024752 U CN204024752 U CN 204024752U
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Abstract
The utility model provides the control system of a kind of single-acting chamber main oil gallery feedback variable displacement vane pump, comprise single-acting chamber main oil gallery feedback variable displacement vane pump, pump discharge, main oil gallery, oil sump, safety valve and main control valve, described single-acting chamber main oil gallery feedback variable displacement vane pump comprises the pump housing, blade, rotor, feedback pressure oil pocket, slide block rotation locating stud, variable slide block and variable spring; In the structure of single-acting chamber main oil gallery feedback variable displacement vane pump, by increasing main control valve, realized two-stage variable discharge capacity, utilize the poor differential pressure that forms in cross section between main control valve upper end piston cavity and lower end piston cavity to control, than double-action chamber feedback variable displacement vane pump designs simplification, the design of control valve and layout are more flexible, and pressure is controlled more steady; The switching function between integrated low pressure stage variable displacement and high pressure stage variable displacement in the function of safety valve simultaneously.
Description
Technical field
The utility model relates to lubricating system of IC engine technical field, particularly the control system of single-acting chamber main oil gallery feedback variable displacement vane pump for a kind of internal combustion engine lubrication.
Background technique
Along with engine lubrication system oil pump becomes the growing and universal of discharge capacity technology, blade type oil pump is applied widely, existing vane pump comprises single-acting chamber feedback and two kinds of variable formats of double-action chamber feedback, wherein single action variable chamber can be designed to one-level variable displacement pattern, by electrohydraulic proportional control valve, can realize MAP and control, double-action chamber feedback can be designed to two-stage variable discharge capacity pattern.
Model utility content
The technical problems to be solved in the utility model is to provide the control system of a kind of single-acting chamber main oil gallery feedback variable displacement vane pump, allows single-acting chamber main oil gallery feed back the practicable secondary variable displacement of variable displacement vane pump.
For solving the problems of the technologies described above, the technical solution of the utility model is: the control system of a kind of single-acting chamber main oil gallery feedback variable displacement vane pump, comprises single-acting chamber main oil gallery feedback variable displacement vane pump, pump discharge, main oil gallery, oil sump, safety valve and main control valve, described single-acting chamber main oil gallery feedback variable displacement vane pump comprises the pump housing, blade, rotor, feedback pressure oil pocket, slide block rotation locating stud, variable slide block and variable spring, the valve pocket of described safety valve is provided with pump discharge oil duct interface, main oil gallery interface, feedback oil duct interface, main control valve interface and spring chamber drain tap, the valve sleeving inner wall bottom of described main control valve is provided with a loop boss, on annular boss, be placed with spring, the spool lower end of main control valve is passed and can be moved downward from spring, between described spool and valve pocket top, it is upper end piston cavity, between described spool and valve pocket bottom, be lower end piston cavity, valve pocket is provided with main oil gallery interface, feedback oil duct interface, spring chamber drain tap, gateway, lower piston chamber, in the one-level variable displacement stage, the lower end piston cavity of main control valve is all the time successively by gateway, lower piston chamber, main control valve interface and the spring chamber drain tap of safety valve communicate with oil sump, before the engine oil pressure of main oil gallery does not reach the variable engine oil pressure of one-level of setting, feedback pressure oil pocket is successively by the feedback oil duct interface of main control valve, spring chamber drain tap communicates with oil sump, oil pump is in maximum pump discharge working position, when the engine oil pressure of main oil gallery reaches the variable engine oil pressure of one-level of setting, main control valve spool moves to lower end piston cavity under the engine oil pressure effect of main oil gallery, feedback oil duct interface is closed, when the engine oil pressure of main oil gallery continues to increase, main control valve spool continues descending, feedback pressure oil pocket is successively by the feedback oil duct interface of main control valve, spool oil groove, main oil gallery interface communicates with main oil gallery, the engine oil pressure of main oil gallery enters feedback pressure oil pocket and directly acts on variable slide block, the offset of variable slide block and rotor is reduced, thereby reduce output discharge capacity, when the engine oil pressure of main oil gallery further increases on the basis of the above and reaches the switching pressure of setting, the spool of safety valve moves down under the effect of pump discharge engine oil pressure, make the main control valve interface of safety valve and the pathway closure of spring chamber drain tap, from then on just enter the secondary variable displacement stage, in the secondary variable displacement stage, the lower end piston cavity of main control valve is all the time successively by gateway, lower piston chamber, the main control valve interface of safety valve and safety valve main oil gallery interface communicate with main oil gallery, the engine oil pressure of main oil gallery acts on upper end piston cavity and the lower end piston cavity of main control valve simultaneously, main control valve spool is upper, under the differential pressure effect of lower end piston cavity, enter high voltage control state, before the engine oil pressure of main oil gallery does not reach the variable engine oil pressure of secondary of setting, feedback pressure oil pocket is successively by the feedback oil duct interface of main control valve, spring chamber drain tap communicates with oil sump, oil pump is in maximum pump discharge working position, when the engine oil pressure of main oil gallery reaches the variable engine oil pressure of secondary of setting, main control valve spool moves to lower end piston cavity under the engine oil pressure effect of main oil gallery, feedback oil duct interface is closed, when the engine oil pressure of main oil gallery continues to increase, main control valve spool continues descending, feedback pressure oil pocket is successively by the feedback oil duct interface of main control valve, spool oil groove, main oil gallery interface communicates with main oil gallery, the engine oil pressure of main oil gallery enters feedback pressure oil pocket and directly acts on variable slide block, the offset of variable slide block and rotor is reduced, thereby reduce output discharge capacity, when the engine oil pressure of main oil gallery is increased to minimum setting pressure of relief valve, the spool of safety valve continues to move down under the effect of pump discharge engine oil pressure, the engine oil pressure of pump discharge enters feedback pressure oil pocket by safety valve pump discharge oil duct interface, feedback oil duct interface, and oil pump enters security operating mode.
In technique scheme, in the structure of single-acting chamber main oil gallery feedback variable displacement vane pump, by increasing main control valve, realized two-stage variable discharge capacity, utilize the poor differential pressure that forms in cross section between main control valve upper end piston cavity and lower end piston cavity to control, than double-action chamber feedback variable displacement vane pump designs simplification, the design of control valve and layout are more flexible, and pressure is controlled more steady; The switching function between integrated low pressure stage variable displacement and high pressure stage variable displacement in the function of safety valve simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
The control system of a kind of single-acting chamber main oil gallery feedback variable displacement vane pump as shown in Figure 1, comprises single-acting chamber main oil gallery feedback variable displacement vane pump 1, pump discharge 2, main oil gallery 3, machine oil cooler 4, oil strainer 5, oil sump 6, safety valve 7 and main control valve 8, described single-acting chamber main oil gallery feedback variable displacement vane pump 1 comprises the pump housing 11, blade 15, rotor 16, feedback pressure oil pocket 14, slide block rotation locating stud 12, variable slide block 13 and variable spring 17, the valve pocket of described safety valve 7 is provided with pump discharge oil duct interface 71, main oil gallery interface 75, feedback oil duct interface 72, main control valve interface 74 and spring chamber drain tap 73, the valve sleeving inner wall bottom of described main control valve 8 is provided with a loop boss, on annular boss, be placed with spring, the spool lower end of main control valve 8 is passed and can be moved downward from spring, between described spool and valve pocket top, it is upper end piston cavity 81, between described spool and valve pocket bottom, be lower end piston cavity 82, valve pocket is provided with main oil gallery interface 83, feedback oil duct interface 84, spring chamber drain tap 85, gateway, lower piston chamber 86, in the one-level variable displacement stage, the lower end piston cavity 82 of main control valve 8 is all the time successively by gateway, lower piston chamber 86, the main control valve interface 74 of safety valve 7 and spring chamber drain tap 73 communicate with oil sump 6, before the engine oil pressure of main oil gallery 3 does not reach the variable engine oil pressure of one-level of setting, feedback pressure oil pocket 14 is successively by the feedback oil duct interface 84 of main control valve 8, spring chamber drain tap 85 communicates with oil sump 6, oil pump is in maximum pump discharge working position, when the engine oil pressure of main oil gallery 3 reaches the variable engine oil pressure of one-level of setting, the spool of main control valve 8 moves to lower end piston 82 chambeies under the engine oil pressure effect of main oil gallery 3, feedback oil duct interface 84 is closed, when the engine oil pressure of main oil gallery 3 continues to increase, the spool of main control valve 8 continues descending, feedback pressure oil pocket 14 is successively by the feedback oil duct interface 84 of main control valve 8, spool oil groove 87, main oil gallery interface 83 communicates with main oil gallery 3, the engine oil pressure of main oil gallery 3 enters feedback pressure oil pocket 14 and directly acts on variable slide block 13, variable slide block 13 and the offset of rotor 16 are reduced, thereby reduce output discharge capacity, when the engine oil pressure of main oil gallery 3 further increases on the basis of the above and reaches the switching pressure of setting, the spool of safety valve 7 moves down under pump discharge 2 engine oil pressure effects, make the main control valve interface 74 of safety valve 7 and the pathway closure of spring chamber drain tap 73, from then on just enter the secondary variable displacement stage, in the secondary variable displacement stage, the lower end piston cavity 82 of main control valve 8 is all the time successively by gateway, lower piston chamber 86, the main control valve interface 84 of safety valve 7 and the main oil gallery interface 75 of safety valve 7 communicate with main oil gallery 3, the engine oil pressure of main oil gallery 3 acts on upper end piston cavity 81 and the lower end piston cavity 82 of main control valve 8 simultaneously, the spool of main control valve 8 is upper, lower end piston cavity 81, under 82 differential pressure effect, enter high voltage control state, before the engine oil pressure of main oil gallery 3 does not reach the variable engine oil pressure of secondary of setting, feedback pressure oil pocket 14 is successively by the feedback oil duct interface 84 of main control valve 8, spring chamber drain tap 85 communicates with oil sump 6, oil pump is in maximum pump discharge working position, when the engine oil pressure of main oil gallery 3 reaches the variable engine oil pressure of secondary of setting, the spool of main control valve 8 moves to lower end piston cavity 82 under the engine oil pressure effect of main oil gallery 3, feedback oil duct interface 84 is closed, when the engine oil pressure of main oil gallery 3 continues to increase, the spool of main control valve 8 continues descending, feedback pressure oil pocket 14 is successively by the feedback oil duct interface 84 of main control valve 8, spool oil groove 87, main oil gallery interface 93 communicates with main oil gallery 3, the engine oil pressure of main oil gallery 3 enters feedback pressure oil pocket 14 and directly acts on variable slide block 13, variable slide block 13 and the offset of rotor 16 are reduced, thereby reduce output discharge capacity, when the engine oil pressure of main oil gallery 3 is increased to the set pressure of safety valve 7, the spool of safety valve 7 continues to move down under pump discharge 2 engine oil pressure effects, the engine oil pressure of pump discharge 2 enters feedback pressure oil pocket 14 by pump discharge oil duct interface 71, the feedback oil duct interface 72 of safety valve 7, and oil pump enters security operating mode.
Claims (1)
1. the control system of a single-acting chamber main oil gallery feedback variable displacement vane pump, comprise single-acting chamber main oil gallery feedback variable displacement vane pump, pump discharge, main oil gallery, oil sump, described single-acting chamber main oil gallery feedback variable displacement vane pump comprises the pump housing, blade, rotor, feedback pressure oil pocket, slide block rotation locating stud, variable slide block and variable spring, it is characterized in that:
Described control system also comprises safety valve and main control valve, and the valve pocket of described safety valve is provided with pump discharge oil duct interface, main oil gallery interface, feedback oil duct interface, main control valve interface and spring chamber drain tap; The valve sleeving inner wall bottom of described main control valve is provided with a loop boss, on annular boss, be placed with spring, the spool lower end of main control valve is passed and can be moved downward from spring, between described spool and valve pocket top, it is upper end piston cavity, between described spool and valve pocket bottom, be lower end piston cavity, valve pocket is provided with main oil gallery interface, feedback oil duct interface, spring chamber drain tap, gateway, lower piston chamber;
In the one-level variable displacement stage, the lower end piston cavity of main control valve is all the time successively by gateway, lower piston chamber, main control valve interface and the spring chamber drain tap of safety valve communicate with oil sump, before the engine oil pressure of main oil gallery does not reach the variable engine oil pressure of one-level of setting, feedback pressure oil pocket is successively by the feedback oil duct interface of main control valve, spring chamber drain tap communicates with oil sump, oil pump is in maximum pump discharge working position, when the engine oil pressure of main oil gallery reaches the variable engine oil pressure of one-level of setting, main control valve spool moves to lower end piston cavity under the engine oil pressure effect of main oil gallery, feedback oil duct interface is closed, when the engine oil pressure of main oil gallery continues to increase, main control valve spool continues descending, feedback pressure oil pocket is successively by the feedback oil duct interface of main control valve, spool oil groove, main oil gallery interface communicates with main oil gallery, the engine oil pressure of main oil gallery enters feedback pressure oil pocket and directly acts on variable slide block, the offset of variable slide block and rotor is reduced, thereby reduce output discharge capacity,
When the engine oil pressure of main oil gallery further increases on the basis of the above and reaches the switching pressure of setting, the spool of safety valve moves down under the effect of pump discharge engine oil pressure, make the main control valve interface of safety valve and the pathway closure of spring chamber drain tap, from then on just enter the secondary variable displacement stage, in the secondary variable displacement stage, the lower end piston cavity of main control valve is all the time successively by gateway, lower piston chamber, the main control valve interface of safety valve and safety valve main oil gallery interface communicate with main oil gallery, the engine oil pressure of main oil gallery acts on upper end piston cavity and the lower end piston cavity of main control valve simultaneously, main control valve spool is upper, under the differential pressure effect of lower end piston cavity, enter high voltage control state, before the engine oil pressure of main oil gallery does not reach the variable engine oil pressure of secondary of setting, feedback pressure oil pocket is successively by the feedback oil duct interface of main control valve, spring chamber drain tap communicates with oil sump, oil pump is in maximum pump discharge working position, when the engine oil pressure of main oil gallery reaches the variable engine oil pressure of secondary of setting, main control valve spool moves to lower end piston cavity under the engine oil pressure effect of main oil gallery, feedback oil duct interface is closed, when the engine oil pressure of main oil gallery continues to increase, main control valve spool continues descending, feedback pressure oil pocket is successively by the feedback oil duct interface of main control valve, spool oil groove, main oil gallery interface communicates with main oil gallery, the engine oil pressure of main oil gallery enters feedback pressure oil pocket and directly acts on variable slide block, the offset of variable slide block and rotor is reduced, thereby reduce output discharge capacity,
When the engine oil pressure of main oil gallery is increased to minimum setting pressure of relief valve, the spool of safety valve continues to move down under the effect of pump discharge engine oil pressure, the engine oil pressure of pump discharge enters feedback pressure oil pocket by safety valve pump discharge oil duct interface, feedback oil duct interface, and oil pump enters security operating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420299065.6U CN204024752U (en) | 2014-06-06 | 2014-06-06 | The control system of a kind of single-acting chamber main oil gallery feedback variable displacement vane pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420299065.6U CN204024752U (en) | 2014-06-06 | 2014-06-06 | The control system of a kind of single-acting chamber main oil gallery feedback variable displacement vane pump |
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| CN204024752U true CN204024752U (en) | 2014-12-17 |
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| CN201420299065.6U Withdrawn - After Issue CN204024752U (en) | 2014-06-06 | 2014-06-06 | The control system of a kind of single-acting chamber main oil gallery feedback variable displacement vane pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047666A (en) * | 2014-06-06 | 2014-09-17 | 湖南机油泵股份有限公司 | Control system of single action cavity main oil gallery feedback variable displacement vane pump |
-
2014
- 2014-06-06 CN CN201420299065.6U patent/CN204024752U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047666A (en) * | 2014-06-06 | 2014-09-17 | 湖南机油泵股份有限公司 | Control system of single action cavity main oil gallery feedback variable displacement vane pump |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141217 Effective date of abandoning: 20160824 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |