CN204738854U - Control system of single chamber of draining formula two -stage variable displacement impeller pump - Google Patents
Control system of single chamber of draining formula two -stage variable displacement impeller pump Download PDFInfo
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- CN204738854U CN204738854U CN201520407539.9U CN201520407539U CN204738854U CN 204738854 U CN204738854 U CN 204738854U CN 201520407539 U CN201520407539 U CN 201520407539U CN 204738854 U CN204738854 U CN 204738854U
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Abstract
The utility model provides a control system of single chamber of draining formula two -stage variable displacement impeller pump, feed back the variable displacement impeller pump including single chamber, pump mouth, main oil gallery, oil pan, relief valve, switch solenoid valve, pilot valve, single chamber feedback variable displacement impeller pump includes the pump body, feedback oil pocket, variable slider and variable spring, is equipped with a variable feedback oil pocket and a control oil pocket between the pump body and variable slider, the control oil pocket through set up recess on the variable slider direct with the pump body on the oil -out communicate with each other, variable feedback oil pocket mouthful links to each other with pumping through the pilot valve, the pilot valve includes valve barrel, case and spring, be equipped with a pressure control chamber and the 2nd pressure control chamber between case and the valve barrel inner wall, a pressure control chamber is direct to link to each other with the main oil gallery, the 2nd pressure control chamber is passed through the switch solenoid valve and is linked to each other with the main oil gallery. Above -mentioned control system makes the nonoculture realize the two -stage variable displacement with chamber feedback variable displacement impeller pump.
Description
Technical field
The utility model relates to lubricating system of IC engine technical field, particularly a kind of internal combustion engine lubrication control system of single chamber feedback variable displacement vane pump.
Background technique
Along with engine lubrication system oil pump becomes the growing and universal of Displacement Technology, blade type oil pump is applied widely, existing vane pump comprises single-acting chamber feedback and two kinds of variable formats are fed back in double-action chamber, wherein single-acting chamber feedback can be designed to one-level variable displacement pattern, can realize MAP by electrohydraulic proportional control valve to 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 draining type list chamber two-stage variable displacement vane pump, allows single-acting chamber feed back variable displacement vane pump and can realize two-stage variable discharge capacity.
For solving the problems of the technologies described above, the technical solution of the utility model is: the control system of a kind of draining type list chamber two-stage variable displacement vane pump, comprises single chamber feedback variable displacement vane pump, pump discharge, main oil gallery, oil sump, safety valve, pilot valve, switch electromagnetic valve;
Described single chamber feedback variable displacement vane pump comprises the pump housing, rotating dog, rotor, variable slide block and variable spring, a variable feedback oil pocket and a control oil pocket is provided with between the pump housing and variable slide block, the volume of described variable feedback oil pocket is greater than the volume controlling oil pocket, described variable feedback oil pocket and variable spring are positioned at the same side of variable slide block, described control oil pocket is directly communicated with the oil outlet on the pump housing by the groove be arranged on variable slide block, and described variable feedback oil pocket is connected with pump discharge by pilot valve;
On the oil circuit of described safety valve between pump discharge and oil sump; Described pilot valve comprises valve pocket, spool and spring, the first pressure control cavity and the second pressure control cavity is provided with between described spool and valve sleeving inner wall, described first pressure control cavity is directly connected with main oil gallery, described second pressure control cavity is connected with main oil gallery by switch electromagnetic valve, and described valve pocket is provided with pump discharge oil duct interface, feedback oil duct interface, pilot valve drain tap; The P mouth of described switch electromagnetic valve communicates with main oil gallery, and A mouth communicates with the second pressure control cavity of pilot valve, and T mouth communicates with oil sump;
In the one-level variable displacement stage, under control of the ecu, the P mouth of switch electromagnetic valve is communicated with A mouth, and main oil gallery pressure oil enters the second pressure control cavity of pilot valve by switch electromagnetic valve, in this stage, the first pressure control cavity and second pressure control cavity of pilot valve are all full of main oil gallery pressure oil, do not reach the low pressure variable pressure point of setting at the engine oil pressure of main oil gallery before, pilot valve drain tap is in closed condition, variable feedback oil pocket is communicated with pump discharge by the feedback oil duct interface of pilot valve, pump discharge oil duct interface successively, variable feedback oil pocket and control oil pocket are full of pump discharge pressure oil simultaneously, under the pressure oil of variable feedback oil pocket and the pretightening force double action of variable spring, variable slide block does not rotate, when the engine oil pressure of main oil gallery reaches the low pressure variable pressure point of setting, pilot valve core moves to one end that spring is housed under the engine oil pressure effect of the first pressure control cavity and the second pressure control cavity, pump discharge oil duct interface is closed, and open pilot valve drain tap simultaneously, variable feedback oil pocket is successively by the feedback oil duct interface of pilot valve, pilot valve drain tap communicates with oil sump, pressure oil in variable feedback oil pocket is released, the pressure oil controlled in oil pocket promotes slide block compression variable spring and rotates centered by rotating dog, the offset of variable slide block and rotor is reduced, thus reduce output discharge capacity,
When switch electromagnetic valve is when being switched to another working state under control of the ecu, the P mouth of switch electromagnetic valve is not communicated with A mouth, the A mouth of solenoid valve is communicated with T mouth, pressure oil in second pressure control cavity of pilot valve is let out to oil sump by switch electromagnetic valve, system enters the secondary variable displacement stage, in the secondary variable displacement stage, the first pressure control cavity of pilot valve is full of main oil gallery pressure oil, and in the second pressure control cavity, oil pressure is zero, do not reach the high voltage variable piezometric force of setting at the engine oil pressure of main oil gallery before, pilot valve drain tap is in closed condition, variable feedback oil pocket is communicated with pump discharge by the feedback oil duct interface of pilot valve, pump discharge oil duct interface successively, variable feedback oil pocket and control oil pocket are full of pump discharge pressure oil simultaneously, under the pressure oil of variable feedback oil pocket and the pretightening force double action of variable spring, variable slide block does not rotate, when the engine oil pressure of main oil gallery reaches the high voltage variable piezometric force of setting, pilot valve core moves to one end that spring is housed under the engine oil pressure effect of the first pressure control cavity, pump discharge oil duct interface is closed, and open pilot valve drain tap simultaneously, variable feedback oil pocket is successively by the feedback oil duct interface of pilot valve, pilot valve drain tap communicates with oil sump, pressure oil in variable feedback oil pocket is released, the pressure oil controlled in oil pocket promotes slide block compression variable spring and rotates centered by rotating dog, the offset of variable slide block and rotor is reduced, thus reduce output discharge capacity, when the engine oil pressure of pump discharge exceedes set pressure for safety valve, the machine oil of pump discharge flows into oil sump by safety valve.
In technique scheme, the structure of single-acting chamber feedback variable displacement vane pump achieves secondary variable displacement by increase switch electromagnetic valve and pilot valve, the first control chamber of pilot valve and the second control chamber is utilized to solve the Variable Control of different oil pressure, than double-action chamber feedback variable displacement vane pump designs simplification, fast response time; Owing to being directly act on variable feedback oil pocket by the oil pressure of pump discharge, react sensitiveer, the response of variable slide block is faster.
Accompanying drawing explanation
Fig. 1 is the structural representation of control system of the present utility model in the non-variable stage;
Fig. 2 is the structural representation of control system of the present utility model in the variable stage;
Fig. 3 is the structural representation of single chamber of the present utility model feedback variable displacement vane pump.
Embodiment
As shown in Figure 1, 2, 3, the control system of a kind of draining type list chamber two-stage variable displacement vane pump, comprises single chamber feedback variable displacement vane pump 1, pump discharge 2, filter 4, main oil gallery 5, oil sump 6, safety valve 3, switch electromagnetic valve 7, pilot valve 8; Described single chamber feedback variable displacement vane pump 1 comprises the pump housing, rotating dog, rotor, variable slide block and variable spring, a variable feedback oil pocket 11 and a control oil pocket 12 is provided with between the pump housing and variable slide block, the volume of described variable feedback oil pocket 11 is greater than the volume controlling oil pocket 12, described variable feedback oil pocket 11 and variable spring are positioned at the same side of variable slide block, described control oil pocket 12 is directly communicated with the oil outlet on the pump housing by the groove 13 be arranged on variable slide block, and described variable feedback oil pocket 11 is connected with pump discharge 2 by pilot valve 8; On the oil circuit of described safety valve 3 between pump discharge 2 and oil sump 6; Described pilot valve 8 comprises valve pocket, spool and spring, the first pressure control cavity 81 and the second pressure control cavity 82 is provided with between described spool and valve sleeving inner wall, described first pressure control cavity 81 is directly connected with main oil gallery 5, described second pressure control cavity 82 is connected with main oil gallery 5 by switch electromagnetic valve 7, and described valve pocket is provided with pump discharge oil duct interface 83, feedback oil duct interface 84, pilot valve drain tap 85; The P mouth 71 of described switch electromagnetic valve communicates with main oil gallery 5, and A mouth 72 communicates with the second pressure control cavity 82 of pilot valve, and T mouth 73 communicates with oil sump 6;
In the one-level variable displacement stage, under control of the ecu, the P mouth 71 of switch electromagnetic valve 7 is communicated with A mouth 72, main oil gallery 5 pressure oil enters the second pressure control cavity 82 of pilot valve 8 by switch electromagnetic valve 7, in this stage, the first pressure control cavity 81 of pilot valve 8 and the second pressure control cavity 82 are all full of main oil gallery pressure oil, do not reach the low pressure variable pressure point of setting at the engine oil pressure of main oil gallery 5 before, pilot valve drain tap 85 is in closed condition, variable feedback oil pocket 11 is communicated with pump discharge 2 by the feedback oil duct interface 84 of pilot valve, pump discharge oil duct interface 83 successively, variable feedback oil pocket 11 and control oil pocket 12 are full of pump discharge pressure oil simultaneously, under the pressure oil of variable feedback oil pocket 11 and the pretightening force double action of variable spring, variable slide block does not rotate, when the engine oil pressure of main oil gallery reaches the low pressure variable pressure point of setting, pilot valve 8 spool moves to one end that spring is housed under the engine oil pressure effect of the first pressure control cavity 81 and the second pressure control cavity 82, pump discharge oil duct interface 83 is closed, and open pilot valve drain tap 85 simultaneously, variable feedback oil pocket 11 is successively by the feedback oil duct interface 84 of pilot valve, pilot valve drain tap 85 communicates with oil sump 6, pressure oil in variable feedback oil pocket 11 is released, the pressure oil controlled in oil pocket 12 promotes slide block compression variable spring and rotates centered by rotating dog, the offset of variable slide block and rotor is reduced, thus reduce output discharge capacity,
When switch electromagnetic valve 7 is when being switched to another working state under control of the ecu, the P mouth 71 of switch electromagnetic valve 7 is not communicated with A mouth 72, the A mouth 72 of solenoid valve is communicated with T mouth 73, pressure oil in second pressure control cavity of pilot valve 8 is let out to oil sump 6 by switch electromagnetic valve 8, system enters the secondary variable displacement stage, in the secondary variable displacement stage, the first pressure control cavity 81 of pilot valve 8 is full of main oil gallery pressure oil, and in the second pressure control cavity 82 of pilot valve 8, oil pressure is zero, do not reach the high voltage variable piezometric force of setting at the engine oil pressure of main oil gallery 5 before, pilot valve drain tap 85 is in closed condition, variable feedback oil pocket 11 is communicated with pump discharge 2 by the feedback oil duct interface 84 of pilot valve, pump discharge oil duct interface 83 successively, variable feedback oil pocket 11 and control oil pocket 12 are full of pump discharge pressure oil simultaneously, under the pressure oil of variable feedback oil pocket 11 and the pretightening force double action of variable spring, variable slide block does not rotate, when the engine oil pressure of main oil gallery reaches the high voltage variable piezometric force of setting, pilot valve 8 spool moves to one end that spring is housed under the engine oil pressure effect of the first pressure control cavity 81, pump discharge oil duct interface 83 is closed, and open pilot valve drain tap 85 simultaneously, variable feedback oil pocket 11 is successively by the feedback oil duct interface 84 of pilot valve, pilot valve drain tap 85 communicates with oil sump 6, pressure oil in variable feedback oil pocket 11 is released, the pressure oil controlled in oil pocket 12 promotes slide block compression variable spring and rotates centered by rotating dog, the offset of variable slide block and rotor is reduced, thus reduce output discharge capacity, when the engine oil pressure of pump discharge 2 exceedes the set pressure of safety valve 3, the machine oil of pump discharge 2 flows into oil sump 6 by safety valve 3.
Claims (1)
1. a control system for draining type list chamber two-stage variable displacement vane pump, is characterized in that: this system comprises single chamber feedback variable displacement vane pump, pump discharge, main oil gallery, oil sump, safety valve, pilot valve, switch electromagnetic valve;
Described single chamber feedback variable displacement vane pump comprises the pump housing, rotating dog, rotor, variable slide block and variable spring, a variable feedback oil pocket and a control oil pocket is provided with between the pump housing and variable slide block, the volume of described variable feedback oil pocket is greater than the volume controlling oil pocket, described variable feedback oil pocket and variable spring are positioned at the same side of variable slide block, described control oil pocket is directly communicated with the oil outlet on the pump housing by the groove be arranged on variable slide block, and described variable feedback oil pocket is connected with pump discharge by pilot valve;
On the oil circuit of described safety valve between pump discharge and oil sump; Described pilot valve comprises valve pocket, spool and spring, the first pressure control cavity and the second pressure control cavity is provided with between described spool and valve sleeving inner wall, described first pressure control cavity is directly connected with main oil gallery, described second pressure control cavity is connected with main oil gallery by switch electromagnetic valve, and described valve pocket is provided with pump discharge oil duct interface, feedback oil duct interface, pilot valve drain tap; The P mouth of described switch electromagnetic valve communicates with main oil gallery, and A mouth communicates with the second pressure control cavity of pilot valve, and T mouth communicates with oil sump;
In the one-level variable displacement stage, under control of the ecu, the P mouth of switch electromagnetic valve is communicated with A mouth, and main oil gallery pressure oil enters the second pressure control cavity of pilot valve by switch electromagnetic valve, in this stage, the first pressure control cavity and second pressure control cavity of pilot valve are all full of main oil gallery pressure oil, do not reach the low pressure variable pressure point of setting at the engine oil pressure of main oil gallery before, pilot valve drain tap is in closed condition, variable feedback oil pocket is communicated with pump discharge by the feedback oil duct interface of pilot valve, pump discharge oil duct interface successively, variable feedback oil pocket and control oil pocket are full of pump discharge pressure oil simultaneously, under the pressure oil of variable feedback oil pocket and the pretightening force double action of variable spring, variable slide block does not rotate, when the engine oil pressure of main oil gallery reaches the low pressure variable pressure point of setting, pilot valve core moves to one end that spring is housed under the engine oil pressure effect of the first pressure control cavity and the second pressure control cavity, pump discharge oil duct interface is closed, and open pilot valve drain tap simultaneously, variable feedback oil pocket is successively by the feedback oil duct interface of pilot valve, pilot valve drain tap communicates with oil sump, pressure oil in variable feedback oil pocket is released, the pressure oil controlled in oil pocket promotes slide block compression variable spring and rotates centered by rotating dog, the offset of variable slide block and rotor is reduced, thus reduce output discharge capacity,
When switch electromagnetic valve is when being switched to another working state under control of the ecu, the P mouth of switch electromagnetic valve is not communicated with A mouth, the A mouth of solenoid valve is communicated with T mouth, pressure oil in second pressure control cavity of pilot valve is let out to oil sump by switch electromagnetic valve, system enters the secondary variable displacement stage, in the secondary variable displacement stage, the first pressure control cavity of pilot valve is full of main oil gallery pressure oil, and in the second pressure control cavity, oil pressure is zero, do not reach the high voltage variable piezometric force of setting at the engine oil pressure of main oil gallery before, pilot valve drain tap is in closed condition, variable feedback oil pocket is communicated with pump discharge by the feedback oil duct interface of pilot valve, pump discharge oil duct interface successively, variable feedback oil pocket and control oil pocket are full of pump discharge pressure oil simultaneously, under the pressure oil of variable feedback oil pocket and the pretightening force double action of variable spring, variable slide block does not rotate, when the engine oil pressure of main oil gallery reaches the high voltage variable piezometric force of setting, pilot valve core moves to one end that spring is housed under the engine oil pressure effect of the first pressure control cavity, pump discharge oil duct interface is closed, and open pilot valve drain tap simultaneously, variable feedback oil pocket is successively by the feedback oil duct interface of pilot valve, pilot valve drain tap communicates with oil sump, pressure oil in variable feedback oil pocket is released, the pressure oil controlled in oil pocket promotes slide block compression variable spring and rotates centered by rotating dog, the offset of variable slide block and rotor is reduced, thus reduce output discharge capacity,
When the engine oil pressure of pump discharge exceedes set pressure for safety valve, the machine oil of pump discharge flows into oil sump by safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520407539.9U CN204738854U (en) | 2015-06-15 | 2015-06-15 | Control system of single chamber of draining formula two -stage variable displacement impeller pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520407539.9U CN204738854U (en) | 2015-06-15 | 2015-06-15 | Control system of single chamber of draining formula two -stage variable displacement impeller pump |
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| Publication Number | Publication Date |
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| CN204738854U true CN204738854U (en) | 2015-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520407539.9U Withdrawn - After Issue CN204738854U (en) | 2015-06-15 | 2015-06-15 | Control system of single chamber of draining formula two -stage variable displacement impeller pump |
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| CN (1) | CN204738854U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912619A (en) * | 2015-06-15 | 2015-09-16 | 湖南机油泵股份有限公司 | System for controlling oil drainage type single-cavity two-stage variable displacement blade pump |
| CN105736366A (en) * | 2016-04-20 | 2016-07-06 | 周丹丹 | Oil way pressure control device and control method thereof |
-
2015
- 2015-06-15 CN CN201520407539.9U patent/CN204738854U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912619A (en) * | 2015-06-15 | 2015-09-16 | 湖南机油泵股份有限公司 | System for controlling oil drainage type single-cavity two-stage variable displacement blade pump |
| CN104912619B (en) * | 2015-06-15 | 2017-05-03 | 湖南机油泵股份有限公司 | System for controlling oil drainage type single-cavity two-stage variable displacement blade pump |
| CN105736366A (en) * | 2016-04-20 | 2016-07-06 | 周丹丹 | Oil way pressure control device and control method thereof |
| CN105736366B (en) * | 2016-04-20 | 2018-01-23 | 周丹丹 | A kind of oil circuit pressure control device and its control method |
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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: 20151104 Effective date of abandoning: 20170503 |
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| AV01 | Patent right actively abandoned |