CN104047665B - A kind of control system of magnetic valve control single-acting chamber feedback variable displacement vane pump - Google Patents
A kind of control system of magnetic valve control single-acting chamber feedback variable displacement vane pump Download PDFInfo
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- CN104047665B CN104047665B CN201410248741.1A CN201410248741A CN104047665B CN 104047665 B CN104047665 B CN 104047665B CN 201410248741 A CN201410248741 A CN 201410248741A CN 104047665 B CN104047665 B CN 104047665B
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 34
- 239000003921 oil Substances 0.000 claims description 143
- 239000010705 motor oil Substances 0.000 claims description 54
- 230000000694 effects Effects 0.000 claims description 15
- 239000010687 lubricating oil Substances 0.000 claims description 5
- 230000037361 pathway Effects 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention provides the control system of a kind of magnetic valve control single-acting chamber feedback variable displacement vane pump, including single-acting chamber feedback variable displacement vane pump, pump discharge, main oil gallery, oil sump, safety valve, main control valve and switching regulator magnetic valve, described single-acting chamber feedback variable displacement vane pump includes that the pump housing, blade, rotor, feedback pressure oil pocket, slide block rotate alignment pin, variable slide block and variable spring；The structure of single-acting chamber feedback variable displacement vane pump achieves two-stage variable discharge capacity by increase main control valve, utilize the cross section difference between main control valve upper end plunger shaft and lower end plunger shaft to form differential pressure to control, simplify than double acting chamber feedback variable displacement vane pump structure, design and the layout of control valve are more flexible, Stress control is more steady, can actively control the variable of two grades of discharge capacities by switching regulator magnetic valve simultaneously.
Description
Technical field
The present invention relates to lubricating system of IC engine technical field, the control structure of a kind of internal combustion engine lubrication single-acting chamber feedback variable displacement vane pump.
Background technology
Along with engine lubrication system lubricating oil pump becomes the growing and universal of Displacement Technology, vane type lubricating oil pump is applied widely, existing vane pump includes that two kinds of variable formats are fed back in single-acting chamber feedback and double acting chamber, wherein single action variable chamber can be designed to one-level variable displacement pattern, can realize MAP control by electrohydraulic proportional control valve, double acting chamber feedback can be designed to two-stage variable displacement mode.
Summary of the invention
The technical problem to be solved in the present invention is to provide the control system of a kind of magnetic valve control single-acting chamber feedback variable displacement vane pump, allows single-acting chamber feed back the practicable two grades of variable displacements of variable displacement vane pump.
For solving above-mentioned technical problem, the technical scheme is that the control system of a kind of magnetic valve control single-acting chamber feedback variable displacement vane pump, including single-acting chamber feedback variable displacement vane pump, pump discharge, main oil gallery, oil sump, safety valve, main control valve and switching regulator magnetic valve, described single-acting chamber feedback variable displacement vane pump includes that the pump housing, blade, rotor, feedback pressure oil pocket, slide block rotate alignment pin, variable slide block and variable spring；The valve pocket of described safety valve is provided with pump discharge oil duct interface, feedback oil duct interface, spring cavity drain tap；The valve sleeving inner wall bottom of described main control valve is provided with a loop boss, spring it is placed with on annular boss, the spool lower end of main control valve passes from spring and can move downward, it it is upper end plunger shaft between described spool and valve pocket top, being lower end plunger shaft between bottom described spool and valve pocket, valve pocket is provided with main oil gallery interface, feedback oil duct interface, spring cavity drain tap, gateway, lower piston chamber；nullIn the one-level variable displacement stage，The lower end plunger shaft of main control valve passes sequentially through gateway, lower piston chamber all the time、Switching regulator magnetic valve communicates with oil sump，Before the variable engine oil pressure of one-level that the engine oil pressure of main oil gallery is not up to set up，Feedback pressure oil pocket passes sequentially through the feedback oil duct interface of main control valve、Spring cavity drain tap communicates with oil sump，Oil pump is in maximum pump discharge operating position，When the engine oil pressure of main oil gallery reaches the variable engine oil pressure of one-level set up，Main control valve spool moves to lower end plunger shaft 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 traveling downwardly，Feedback pressure oil pocket passes sequentially through 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，Variable slide block is made to reduce with the offset of rotor，Thus reduce output discharge capacity；nullWhen switching regulator magnetic valve is switched to another duty under control signal effect，Switching regulator magnetic valve is by the pathway closure of the lower end plunger shaft of main control valve Yu oil sump，Just two grades of variable displacement stages are entered from this，Two grades of variable displacement stages，The lower end plunger shaft of main control valve passes sequentially through gateway, lower piston chamber all the time、Switching regulator magnetic valve communicates with main oil gallery，The engine oil pressure of main oil gallery simultaneously acts on upper end plunger shaft and the lower end plunger shaft of main control valve，Main control valve spool is upper、High voltage control state is entered under the differential pressure effect of lower end plunger shaft，Before two grades of variable engine oil pressures that the engine oil pressure of main oil gallery is not up to set up，Feedback pressure oil pocket passes sequentially through the feedback oil duct interface of main control valve、Spring cavity drain tap communicates with oil sump，Oil pump is in maximum pump discharge operating position，When the engine oil pressure of main oil gallery reaches the two grades of variable engine oil pressures set up，Main control valve spool moves to lower end plunger shaft 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 traveling downwardly，Feedback pressure oil pocket passes sequentially through 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，Variable slide block is made to reduce with the offset of rotor，Thus reduce output discharge capacity；When the engine oil pressure of main oil gallery increases to minimum setting pressure of relief valve, the spool of safety valve continues to move down under pump discharge engine oil pressure effect, 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 lubricating oil pump enters security operating mode.
In technique scheme, the structure of single-acting chamber feedback variable displacement vane pump achieves two-stage variable discharge capacity by increase main control valve, utilize the cross section difference between main control valve upper end plunger shaft and lower end plunger shaft to form differential pressure to control, simplify than double acting chamber feedback variable displacement vane pump structure, the design of control valve and layout are more flexible, and Stress control is more steady；Can actively control the variable of two grades of discharge capacities by switching regulator magnetic valve simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
The control system of a kind of magnetic valve control single-acting chamber feedback variable displacement vane pump as shown in Figure 1, including single-acting chamber feedback variable displacement vane pump 1, pump discharge 2, main oil gallery 3, oil cooler 4, oil strainer 5, oil sump 6, safety valve 7, main control valve 8 and switching regulator magnetic valve 9, described single-acting chamber feedback variable displacement vane pump 1 includes that the pump housing 11, blade 15, rotor 16, feedback pressure oil pocket 14, slide block rotate alignment pin 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, feedback oil duct interface 72, spring cavity drain tap 73；The valve sleeving inner wall bottom of described main control valve 8 is provided with a loop boss, spring it is placed with on annular boss, the spool lower end of main control valve 8 passes from spring and can move downward, it it is upper end plunger shaft 81 between described spool and valve pocket top, being lower end plunger shaft 82 between bottom described spool and valve pocket, valve pocket is provided with main oil gallery interface 83, feedback oil duct interface 84, spring cavity drain tap 85, gateway, lower piston chamber 86；nullIn the one-level variable displacement stage，The lower end plunger shaft 82 of main control valve 8 passes sequentially through gateway, lower piston chamber 86 all the time、Switching regulator magnetic valve 9 communicates with oil sump 6，Before the variable engine oil pressure of one-level that the engine oil pressure of main oil gallery 3 is not up to set up，Feedback pressure oil pocket 14 passes sequentially through the feedback oil duct interface 84 of main control valve 8、Spring cavity drain tap 85 communicates with oil sump 6，Oil pump is in maximum pump discharge operating position，When the engine oil pressure of main oil gallery 3 reaches the variable engine oil pressure of one-level set up，The spool of main control valve 8 moves to lower end plunger shaft 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 traveling downwardly，Feedback pressure oil pocket 14 passes sequentially through 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 is made to reduce with the offset of rotor 16，Thus reduce output discharge capacity；nullWhen switching regulator magnetic valve 9 is switched to another duty under control signal effect，Switching regulator magnetic valve 9 is by the pathway closure of the lower end plunger shaft 82 of main control valve 8 with oil sump 6，Just two grades of variable displacement stages are entered from this，Two grades of variable displacement stages，The lower end plunger shaft 82 of main control valve 8 passes sequentially through gateway, lower piston chamber 86 all the time、Switching regulator magnetic valve 9 communicates with main oil gallery 3，The engine oil pressure of main oil gallery 3 simultaneously acts on upper end plunger shaft 81 and the lower end plunger shaft 82 of main control valve 8，The spool of main control valve 8 is upper、Lower end plunger shaft 81、High voltage control state is entered under the differential pressure effect of 82，Before two grades of variable engine oil pressures that the engine oil pressure of main oil gallery 3 is not up to set up，Feedback pressure oil pocket 14 passes sequentially through the feedback oil duct interface 84 of main control valve 8、Spring cavity drain tap 85 communicates with oil sump 6，Oil pump is in maximum pump discharge operating position，When the engine oil pressure of main oil gallery 3 reaches the two grades of variable engine oil pressures set up，The spool of main control valve 8 moves to lower end plunger shaft 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 traveling downwardly，Feedback pressure oil pocket 14 passes sequentially through 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 is made to reduce with the offset of rotor 16，Thus reduce output discharge capacity；When the engine oil pressure of main oil gallery 3 increases 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 effect, the engine oil pressure of pump discharge 2 enters feedback pressure oil pocket 14 by the pump discharge oil duct interface 71 of safety valve 7, feedback oil duct interface 72, and lubricating oil pump enters security operating mode.
Claims (1)
1. the control system of a magnetic valve control single-acting chamber feedback variable displacement vane pump, variable displacement vane pump, pump discharge, main oil gallery, oil sump is fed back including single-acting chamber, described single-acting chamber feedback variable displacement vane pump includes that the pump housing, blade, rotor, feedback pressure oil pocket, slide block rotate alignment pin, variable slide block and variable spring, it is characterised in that:
Described control system also includes safety valve, main control valve and switching regulator magnetic valve, and the valve pocket of described safety valve is provided with pump discharge oil duct interface, feedback oil duct interface, spring cavity drain tap；The valve sleeving inner wall bottom of described main control valve is provided with a loop boss, spring it is placed with on annular boss, the spool lower end of main control valve passes from spring and can move downward, it it is upper end plunger shaft between described spool and valve pocket top, being lower end plunger shaft between bottom described spool and valve pocket, valve pocket is provided with main oil gallery interface, feedback oil duct interface, spring cavity drain tap, gateway, lower piston chamber；
nullIn the one-level variable displacement stage，The lower end plunger shaft of main control valve passes sequentially through gateway, lower piston chamber all the time、Switching regulator magnetic valve communicates with oil sump，Before the variable engine oil pressure of one-level that the engine oil pressure of main oil gallery is not up to set up，Feedback pressure oil pocket passes sequentially through the feedback oil duct interface of main control valve、Spring cavity drain tap communicates with oil sump，Oil pump is in maximum pump discharge operating position，When the engine oil pressure of main oil gallery reaches the variable engine oil pressure of one-level set up，Main control valve spool moves to lower end plunger shaft 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 traveling downwardly，Feedback pressure oil pocket passes sequentially through 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，Variable slide block is made to reduce with the offset of rotor，Thus reduce output discharge capacity；
nullWhen switching regulator magnetic valve is switched to another duty under control signal effect，Switching regulator magnetic valve is by the pathway closure of the lower end plunger shaft of main control valve Yu oil sump，Just two grades of variable displacement stages are entered from this，Two grades of variable displacement stages，The lower end plunger shaft of main control valve passes sequentially through gateway, lower piston chamber all the time、Switching regulator magnetic valve communicates with main oil gallery，The engine oil pressure of main oil gallery simultaneously acts on upper end plunger shaft and the lower end plunger shaft of main control valve，Main control valve spool is upper、High voltage control state is entered under the differential pressure effect of lower end plunger shaft，Before two grades of variable engine oil pressures that the engine oil pressure of main oil gallery is not up to set up，Feedback pressure oil pocket passes sequentially through the feedback oil duct interface of main control valve、Spring cavity drain tap communicates with oil sump，Oil pump is in maximum pump discharge operating position，When the engine oil pressure of main oil gallery reaches the two grades of variable engine oil pressures set up，Main control valve spool moves to lower end plunger shaft 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 traveling downwardly，Feedback pressure oil pocket passes sequentially through 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，Variable slide block is made to reduce with the offset of rotor，Thus reduce output discharge capacity；
When the engine oil pressure of main oil gallery increases to minimum setting pressure of relief valve, the spool of safety valve continues to move down under pump discharge engine oil pressure effect, 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 lubricating oil pump enters security operating mode.
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| CN201410248741.1A CN104047665B (en) | 2014-06-06 | 2014-06-06 | A kind of control system of magnetic valve control single-acting chamber feedback variable displacement vane pump |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101680648B1 (en) * | 2015-09-10 | 2016-11-30 | 명화공업주식회사 | Dual pump system |
| CN105114146A (en) * | 2015-09-28 | 2015-12-02 | 湖南机油泵股份有限公司 | Control system of main oil duct feedback single-cavity two-stage variable-displacement vane pump |
| CN105351188B (en) * | 2015-11-04 | 2017-05-31 | 湖南机油泵股份有限公司 | A kind of two grades of variable displacement vane pump control systems of combination valve type |
| CN108397256A (en) * | 2018-03-26 | 2018-08-14 | 重庆长安汽车股份有限公司 | The pressure release control system of lubricating oil pump |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5679958B2 (en) * | 2011-12-21 | 2015-03-04 | 日立オートモティブシステムズ株式会社 | Variable displacement pump |
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| EP1873363A2 (en) * | 2002-04-03 | 2008-01-02 | BorgWarner Inc. | Variable displacement pump and control therefor |
| CN102844570A (en) * | 2010-03-05 | 2012-12-26 | 皮尔伯格泵技术有限责任公司 | Variable displacement lubricant pump |
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Denomination of invention: A control system of solenoid valve controlled single acting cavity feedback variable displacement vane pump Effective date of registration: 20211224 Granted publication date: 20160824 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: 20160824 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 control system of variable displacement vane pump with single-acting cavity feedback controlled by solenoid valve Effective date of registration: 20230130 Granted publication date: 20160824 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, China 421001 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, China 421001 Patentee before: Hunan Oil Pump Co.,Ltd. Country or region before: China |
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