CN202732023U - Electro-hydraulic proportion overflow variable control device of engine oil pump - Google Patents
Electro-hydraulic proportion overflow variable control device of engine oil pump Download PDFInfo
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- CN202732023U CN202732023U CN 201220269630 CN201220269630U CN202732023U CN 202732023 U CN202732023 U CN 202732023U CN 201220269630 CN201220269630 CN 201220269630 CN 201220269630 U CN201220269630 U CN 201220269630U CN 202732023 U CN202732023 U CN 202732023U
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Abstract
The utility model relates to an electro-hydraulic proportion overflow variable control device of an engine oil pump; an overflow variable process when the pressure of a main oil duct is higher than the pressure set by an electronic control unit (ECU) electronic control center is as follows: an electro-hydraulic proportion overflow loop which is formed by a proportion electromagnet, a feedback oil return cavity, an electro-hydraulic proportion overflow valve, a proportion overflow valve pressure adjusting spring and a feedback loop reduces the displacement of the engine oil pump; and a pressure compensation process when the pressure of the main oil duct is lower than the pressure set by the ECU electronic control center is as follows: the proportion electromagnet loses power, and a feedback cavity unloading loop which is formed by the electro-hydraulic proportion overflow valve, a first oil pan and a feedback cavity unloading loop oil circuit increases the displacement of the engine oil pump.
Description
Technical field
The utility model relates to lubricating system of IC engine or automobile gearbox systems technology field, particularly a kind of oil pump electric-hydraulic proportion overflow variable control device.
Background technique
Growing along with energy-saving and emission-reduction technology of vehicles, variable capacity oil pump has obtained extensive attention in the application of lubricating system of IC engine and automobile gearbox system, variable capacity oil pump has experienced pump discharge feedback level-on variable, main oil gallery feedback level-on variable, the secondary variable of switch type electromagnetic valve two-chamber feedback, the developing stage such as two-stage pressure limiting typical condition variable displacement, the actual typical operating conditions of the Variable Area of level-on variable and motor overlap region is less, thereby save limited, the saving that the secondary variable of switch type electromagnetic valve two-chamber feedback and two kinds of structures of two-stage pressure limiting typical condition variable displacement can both realize the typical of engines operating mode, but because only have two pressure control points, pressure control curve is relatively simple, in the face of the day by day complicated pressure demand of internal-combustion engine, can't realize optimal pressure diagram target, realize maximum fuel oil saving, the displacement-variable oil pump that can realize the MAP control mode based on electrohydraulic proportion technology progressively becomes first-selection in the exploitation of brand-new generation internal-combustion engine, present scheme mainly adopts electrohydraulic proportional directional valve to control, by pressure transducer, ECU, the opening and closing of the closed loop control ratio electromagnet spool that proportion electro-magnet consists of, when main oil gallery pressure is higher than setting pressure, solenoid valve is opened, the feedback cavity pressure rise, oil pump discharge capacity under the feedback force effect reduces, otherwise then discharge capacity increases, and feedback cavity machine oil unloads the oil return drain pan.There is response lag in this mode, the problems such as lubricating oil leakage and the frequent switch of electromagnet.
Summary of the invention
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art and a kind of oil pump electric-hydraulic proportion overflow variable control device is provided, and it can realize that maximum fuel oil saves, and response in time the lubricating oil leakage phenomenon do not occur.
The technical solution of the utility model is: oil pump electric-hydraulic proportion overflow variable control device comprises: oil pump, oil temperature sensor, engine rotation speed sensor, the engine loading sensor, oil pressure sensor, the ECU electronic management system, proportion electro-magnet, feed back to oil pocket, electricity liquid ratio relief valve, the proportional pressure control valve pressure adjusting spring, the first oil sump, oil strainer, machine oil cooler, the minimum injection rate limit spring, feedback loop, the second oil sump, pump discharge pressure limiting loop, pressure-limit valve, limiting valve spring, the 3rd oil sump, main oil gallery, feedback cavity off-load oil return circuit, the upper outlet of oil pump connects oil strainer by oil duct, the oil strainer back is connected with machine oil cooler, main oil gallery has one minute oil duct to connect electricity liquid ratio relief valve, the control section of electricity liquid ratio relief valve is equipped with proportion electro-magnet, the proportional pressure control valve pressure adjusting spring is housed on the electricity liquid ratio relief valve, an outlet of electricity liquid ratio relief valve connects the first oil sump, another outlet of electricity liquid ratio relief valve feeds back to oil pocket by the connection of feedback cavity off-load oil return circuit, proportion electro-magnet connects the ECU electronic management system by wire, oil temperature sensor, engine rotation speed sensor, the engine loading sensor, oil pressure sensor connects the ECU electronic management system by wire, feed back to oil pocket and connect the minimum injection rate limit spring, the minimum injection rate limit spring is connected on the oil pump, feedback loop is installed on the electricity liquid ratio relief valve, one end connects the filler opening of electricity liquid ratio relief valve, the other end connects a side oil outlet of electricity liquid ratio relief valve, the second oil sump is connected to the right of electricity liquid ratio relief valve, the oil outlet of pump discharge pressure limiting loop one end junctor oil pump, the other end connects pressure-limit valve, limiting valve spring is connected on the pressure-limit valve, the lower end of pressure-limit valve is connected with the 3rd oil sump, one end of feedback cavity off-load oil return circuit is connected on the electricity liquid ratio relief valve, and the other end is connected to and feeds back on the oil pocket.
The utility model compared with prior art has following features: it can realize maximum fuel oil saving, and response in time the lubricating oil leakage phenomenon do not occur.
Below in conjunction with the drawings and specific embodiments detailed structure of the present utility model is further described.
Description of drawings
Accompanying drawing 1 is the displacement-variable oil pump control principle drawing;
Accompanying drawing 2 is the schematic diagram under the existing electrohydraulic proportional directional valve control safe mode;
Embodiment
As shown in drawings: oil pump electric-hydraulic proportion overflow variable control device comprises: oil pump 1, oil temperature sensor 2, engine rotation speed sensor 3, engine loading sensor 4, oil pressure sensor 5, ECU electronic management system 6, proportion electro-magnet 7, feed back to oil pocket 8, electricity liquid ratio relief valve 9, proportional pressure control valve pressure adjusting spring 10, the first oil sump 11, oil strainer 12, machine oil cooler 13, minimum injection rate limit spring 14, feedback loop 15, the second oil sump 16, pump discharge pressure limiting loop 17, pressure-limit valve 18, limiting valve spring 19, the 3rd oil sump 20, main oil gallery 21, feedback cavity off-load oil return circuit 22, the upper outlet of oil pump 1 connects oil strainer 12 by oil duct, oil strainer 12 back are connected with machine oil cooler 13, main oil gallery 21 has one minute oil duct to connect electricity liquid ratio relief valve 9, the control section of electricity liquid ratio relief valve 9 is equipped with proportion electro-magnet 7, proportional pressure control valve pressure adjusting spring 10 is housed on the electricity liquid ratio relief valve 9, an outlet of electricity liquid ratio relief valve 9 connects the first oil sump 11, another outlet of electricity liquid ratio relief valve 9 feeds back to oil pocket 8 by 22 connections of feedback cavity off-load oil return circuit, proportion electro-magnet 7 connects ECU electronic management system 6 by wire, oil temperature sensor 2, engine rotation speed sensor 3, engine loading sensor 4, oil pressure sensor 5 connects ECU electronic management system 6 by wire, feed back to oil pocket 8 and connect minimum injection rate limit spring 14, minimum injection rate limit spring 14 is connected on the oil pump 1, feedback loop 15 is installed on the electricity liquid ratio relief valve 9, one end connects the filler opening of electricity liquid ratio relief valve 9, the other end connects a side oil outlet of electricity liquid ratio relief valve 9, the second oil sump 16 is connected to the right of electricity liquid ratio relief valve 9, the oil outlet of pump discharge pressure limiting loop 17 1 end junctor oil pumps 1, the other end connects pressure-limit valve 18, limiting valve spring 19 is connected on the pressure-limit valve 18, the lower end of pressure-limit valve 18 is connected with the 3rd oil sump 20, one end of feedback cavity off-load oil return circuit 22 is connected on the electricity liquid ratio relief valve 9, and the other end is connected to and feeds back on the oil pocket 8.
Working principle of the present utility model and using method are: the overflow variable process that main oil gallery 21 pressure are higher than ECU electronic management system 6 when setting setting pressure is, proportion electro-magnet 7, feeds back to the electric-hydraulic proportion skimmer circuit that oil pocket 8, electricity liquid ratio relief valve 9, proportional pressure control valve pressure adjusting spring 10, feedback loop 15 consist of the oil pump discharge capacity is reduced.
Ftercompction process when main oil gallery 21 pressure are lower than ECU electronic management system 6 setting setting pressure is: proportion electro-magnet 7 dead electricity, electricity liquid ratio relief valve 9, the first oil sumps 11, feedback cavity off-load oil return circuit 22 consist of the feedback cavity relief circuits increases the oil pump discharge capacity.
Oil pump 1 pumps machine oil through oil strainer 12, machine oil cooler 13 is laggard to enter main oil gallery, oil pressure sensor 5 provides testing signal for Engine ECU electronic management system 6, ECU electronic management system 6 is determined output voltage or the electric current of proportion electro-magnet 7 according to these testing signals, the spring force that the electromagnetic attraction partial equilibrium proportional pressure control valve pressure adjusting spring 10 that proportion electro-magnet 7 produces produces, when main oil gallery 1 engine oil pressure is higher than ECU electronic management system 6 setting engine oil pressure, electricity liquid ratio relief valve 9 is in the perfect overflow state under the effect of feedback pressure, the spring force that balance minimum injection rate limit spring 14 produces under the pressure-acting that feeds back to oil pocket 8, the offset of oil pump 1 rotor and slide block reduces, oil pump 1 output reduces, main oil gallery 21 engine oil pressures reduce, when the main oil gallery engine oil pressure is lower than the engine oil pressure of ECU electronic management system 6 setting, electricity liquid ratio relief valve 9 is closed, and the engine oil pressure that feeds back to oil pocket 8 no longer increases.If feed back to oil pocket 8 engine oil pressures because the reasons such as leakage continue to reduce, the offset of oil pump 1 rotor and slide block will increase, pump output increases, main oil gallery 21 pressure increase, electro-hydraulic proportional valve relief valve 9 reopens, mineralization pressure is regulated circulation, if feeding back to oil pocket 8 engine oil pressures continues to raise because hyperbaric chamber leaks the oil infiltration after electricity liquid ratio relief valve 9 is closed, oil pump 1 discharge capacity will continue to reduce, main oil gallery 21 engine oil pressures will be lower than because oil pump 1 output is not enough ECU electronic management system 6 setting pressures, in case pressure transducer 5 testing results are lower than ECU electronic management system 6 setting pressures, ECU electronic management system 6 will make proportion electro-magnet 7 momentary power failures, electricity liquid ratio relief valve 9 is returned original state, feed back to oil pocket 8 off-loads, oil pump 1 is recovered rapidly maximum pump discharge, main oil gallery 21 pressure will rise to rapidly ECU electronic management system 6 setting values, proportion electro-magnet 7 recovers setting voltage or electric current again, oil pump 1 is returned overflow variable pattern, when proportion electro-magnet 7 does not have voltage or current signal, oil pump 1 is in security operating mode, the engine oil pressure of feedback loop 15 must overcome the set pressure of proportional pressure control valve pressure adjusting spring 10 fully, electricity liquid ratio relief valve 9 spools just can be displaced to overflow situation, feed back to oil pocket 8 ability build-up pressures, the realization discharge capacity reduces, oil pump 1 control procedure at this moment is similar to common main oil gallery feedback level-on variable pattern, by pump discharge pressure limiting loop 17, pressure-limit valve 18, the safety valve system that limiting valve spring 19 and the 3rd oil sump 20 form is used for the excessive engine oil pressure of restriction lubrication system.
Claims (1)
1. oil pump electric-hydraulic proportion overflow variable control device, it is characterized in that: it comprises oil pump, oil temperature sensor, engine rotation speed sensor, the engine loading sensor, oil pressure sensor, the ECU electronic management system, proportion electro-magnet, feed back to oil pocket, electricity liquid ratio relief valve, the proportional pressure control valve pressure adjusting spring, the first oil sump, oil strainer, machine oil cooler, the minimum injection rate limit spring, feedback loop, the second oil sump, pump discharge pressure limiting loop, pressure-limit valve, limiting valve spring, the 3rd oil sump, main oil gallery, feedback cavity off-load oil return circuit, the upper outlet of oil pump connects oil strainer by oil duct, the oil strainer back is connected with machine oil cooler, main oil gallery has one minute oil duct to connect electricity liquid ratio relief valve, the control section of electricity liquid ratio relief valve is equipped with proportion electro-magnet, the proportional pressure control valve pressure adjusting spring is housed on the electricity liquid ratio relief valve, an outlet of electricity liquid ratio relief valve connects the first oil sump, another outlet of electricity liquid ratio relief valve feeds back to oil pocket by the connection of feedback cavity off-load oil return circuit, proportion electro-magnet connects the ECU electronic management system by wire, oil temperature sensor, engine rotation speed sensor, the engine loading sensor, oil pressure sensor connects the ECU electronic management system by wire, feed back to oil pocket and connect the minimum injection rate limit spring, the minimum injection rate limit spring is connected on the oil pump, feedback loop is installed on the electricity liquid ratio relief valve, one end connects the filler opening of electricity liquid ratio relief valve, the other end connects a side oil outlet of electricity liquid ratio relief valve, the second oil sump is connected to the right of electricity liquid ratio relief valve, the oil outlet of pump discharge pressure limiting loop one end junctor oil pump, the other end connects pressure-limit valve, limiting valve spring is connected on the pressure-limit valve, the lower end of pressure-limit valve is connected with the 3rd oil sump, one end of feedback cavity off-load oil return circuit is connected on the electricity liquid ratio relief valve, and the other end is connected to and feeds back on the oil pocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220269630 CN202732023U (en) | 2012-06-08 | 2012-06-08 | Electro-hydraulic proportion overflow variable control device of engine oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220269630 CN202732023U (en) | 2012-06-08 | 2012-06-08 | Electro-hydraulic proportion overflow variable control device of engine oil pump |
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| Publication Number | Publication Date |
|---|---|
| CN202732023U true CN202732023U (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220269630 Withdrawn - After Issue CN202732023U (en) | 2012-06-08 | 2012-06-08 | Electro-hydraulic proportion overflow variable control device of engine oil pump |
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| CN (1) | CN202732023U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705034A (en) * | 2012-06-08 | 2012-10-03 | 湖南机油泵股份有限公司 | Oil pump electricity-liquid proportion overflow variable control method and device |
| CN103821580A (en) * | 2014-03-12 | 2014-05-28 | 湖南机油泵股份有限公司 | Variable control method and system for oil pump with variable displacement |
| CN106369000A (en) * | 2016-11-22 | 2017-02-01 | 天津苑博科技有限公司 | Unloading electrohydraulic control mechanism |
| CN109869377A (en) * | 2017-12-01 | 2019-06-11 | 中国飞机强度研究所 | A kind of controllable uninstalling system |
| WO2019170216A1 (en) * | 2018-03-05 | 2019-09-12 | Pierburg Pump Technology Gmbh | Automotive variable mechanical lubricant pump |
| CN115614125A (en) * | 2022-09-07 | 2023-01-17 | 赛力斯集团股份有限公司 | Variable-displacement oil pump control method |
-
2012
- 2012-06-08 CN CN 201220269630 patent/CN202732023U/en not_active Withdrawn - After Issue
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705034A (en) * | 2012-06-08 | 2012-10-03 | 湖南机油泵股份有限公司 | Oil pump electricity-liquid proportion overflow variable control method and device |
| CN102705034B (en) * | 2012-06-08 | 2014-09-03 | 湖南机油泵股份有限公司 | Oil pump electricity-liquid proportion overflow variable control method and device |
| CN103821580A (en) * | 2014-03-12 | 2014-05-28 | 湖南机油泵股份有限公司 | Variable control method and system for oil pump with variable displacement |
| CN106369000A (en) * | 2016-11-22 | 2017-02-01 | 天津苑博科技有限公司 | Unloading electrohydraulic control mechanism |
| CN109869377A (en) * | 2017-12-01 | 2019-06-11 | 中国飞机强度研究所 | A kind of controllable uninstalling system |
| WO2019170216A1 (en) * | 2018-03-05 | 2019-09-12 | Pierburg Pump Technology Gmbh | Automotive variable mechanical lubricant pump |
| JP2021515863A (en) * | 2018-03-05 | 2021-06-24 | ピアーブルグ パンプ テクノロジー ゲゼルシャフト ミット ベシュレンクテル ハフツングＰｉｅｒｂｕｒｇ Ｐｕｍｐ Ｔｅｃｈｎｏｌｏｇｙ ＧｍｂＨ | Variable mechanical lubricant pump for automobiles |
| JP7248694B2 (en) | 2018-03-05 | 2023-03-29 | ピアーブルグ パンプ テクノロジー ゲゼルシャフト ミット ベシュレンクテル ハフツング | Automotive variable mechanical lubricating oil pump |
| US11852137B2 (en) | 2018-03-05 | 2023-12-26 | Pierburg Pump Technology Gmbh | Automotive variable mechanical lubricant pump |
| CN115614125A (en) * | 2022-09-07 | 2023-01-17 | 赛力斯集团股份有限公司 | Variable-displacement oil pump control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130213 Effective date of abandoning: 20140903 |
|
| RGAV | Abandon patent right to avoid regrant |