CN105179912A - Mechanical valve control two-level variable-displacement oil pump - Google Patents
Mechanical valve control two-level variable-displacement oil pump Download PDFInfo
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- CN105179912A CN105179912A CN201510625446.8A CN201510625446A CN105179912A CN 105179912 A CN105179912 A CN 105179912A CN 201510625446 A CN201510625446 A CN 201510625446A CN 105179912 A CN105179912 A CN 105179912A
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 15
- 239000000945 filler Substances 0.000 claims description 14
- 239000003921 oil Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
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- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
The invention provides a mechanical valve control two-level variable-displacement oil pump which comprises a mechanical valve and a pump body. A rotor cavity is formed in the pump body. A rotor, a rotary pin, a variable sliding block and a variable spring are installed in the rotor cavity. A spring press block is arranged on the variable sliding block. A first pressure feedback cavity and a second pressure feedback cavity are arranged between the variable sliding block and the wall of the rotor cavity. The mechanical valve comprises a valve bush, a valve element and a spring. An oil inlet, an oil outlet, a port A and a port B are formed in the valve bush, wherein the port A is communicated with the first pressure feedback cavity, the port B is communicated with the second pressure feedback cavity, and the oil inlet is communicated with the port A all the time; when the pressure of the oil inlet is lower than the set switching pressure, the oil outlet is communicated with the port B, and the port A is not communicated with the port B; and when the pressure of the oil inlet is higher than the set switching pressure, the oil outlet is not communicated with the port B, and the port A is communicated with the port B. The feedback oil pressure in the first pressure feedback cavity and the feedback oil pressure in the second pressure feedback cavity are controlled through the mechanical valve, so that the two-level variable displacement of a vane pump is achieved.
Description
Technical field
The present invention relates to a kind of secondary variable displacement blade type oil 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.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of secondary variable displacement blade type oil pump, controls double-action chamber feedback realize two-stage variable discharge capacity by mechanical valve.
For solving the problems of the technologies described above, technological scheme of the present invention is: a kind of mechanical valve control secondary becomes displacement oil pump, comprise mechanical valve, the pump housing, rotor chamber is provided with in the described pump housing, rotor, rotating dog, variable slide block and variable spring are installed in described rotor chamber, described variable slide block is provided with spring lock block, two pressure feedback chambeies are provided with between variable slide block and rotor chamber wall, two pressure feedback chambeies lay respectively at the both sides of rotating dog, wherein with spring lock block on same one side is the first pressure feedback chamber, and another is the second pressure feedback chamber; Described mechanical valve comprises valve pocket, spool and spring, described valve pocket is provided with filler opening, drain tap, A mouth and B mouth, wherein A mouth communicates with the first pressure feedback chamber, and B mouth communicates with the second pressure feedback chamber, and filler opening communicates with A mouth all the time, when inlet pressure is lower than the switching pressure set, drain tap and B mouth communicate, and A mouth and B mouth do not communicate, when inlet pressure is higher than the switching pressure set, drain tap and B mouth do not communicate, and A mouth and B mouth communicate.
The working principle of technique scheme is: in periods of low pressure, because the pressure of filler opening is lower than the switching pressure set, A mouth and B mouth do not communicate, B mouth and drain tap communicate, without pressure oil in second pressure control cavity, have pressure oil in first pressure control cavity, variable slide block, under the effect of the first Stress control cavity pressure oil, rotates around rotating dog and makes the change of vane pump bias carry out Displacement Regulation to keep engine pressure constant.At high pressure phase, because the pressure of filler opening is higher than the switching pressure set, drain tap and B mouth do not communicate, A mouth and B mouth communicate, the pressure oil of coming in from filler opening enters the first pressure control cavity and the second pressure control cavity by A mouth and B mouth simultaneously, variable slide block, under the effect of the first pressure control cavity and the second Stress control cavity pressure oil, rotates around rotating dog and makes the change of vane pump bias carry out Displacement Regulation to keep engine pressure constant.
The present invention achieves vane pump two-stage variable discharge capacity by the mechanical valve feedback oil pressure controlled in the first pressure control cavity and the second pressure control cavity.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
A kind of mechanical valve control secondary as shown in Figure 1 becomes displacement oil pump, comprise mechanical valve 1, the pump housing 2, rotor chamber is provided with in the described pump housing 2, rotor 3, rotating dog 4, variable slide block 5 and variable spring 6 are installed in described rotor chamber, described variable slide block 5 is provided with spring lock block, two pressure feedback chambeies are provided with between variable slide block 5 and rotor chamber wall, two pressure feedback chambeies lay respectively at the both sides of rotating dog 4, wherein with spring lock block 5 on same one side is the first pressure feedback chamber 7, and another is the second pressure feedback chamber 8; Described mechanical valve 1 comprises valve pocket 11, spool 12 and spring 13, described valve pocket is provided with filler opening 14, drain tap 15, A mouth 16 and B mouth 17, wherein A mouth 16 communicates with the first pressure feedback chamber 7, B mouth 17 communicates with the second pressure feedback chamber 8, filler opening 14 communicates with A mouth 16 all the time, when filler opening 14 pressure is lower than the switching pressure set, drain tap 15 and B mouth 17 communicate, A mouth 16 and B mouth 17 do not communicate, when filler opening 14 pressure is higher than the switching pressure set, drain tap 15 and B mouth 17 do not communicate, and A mouth 16 and B mouth 17 communicate.
The working principle of technique scheme is: in periods of low pressure, because the pressure of filler opening 14 is lower than the switching pressure set, A mouth 16 and B mouth 17 do not communicate, B mouth 17 and drain tap 15 communicate, without pressure oil in second pressure control cavity 8, have pressure oil in first pressure control cavity 7, variable slide block 5, under the effect of the first pressure control cavity 7 internal pressure oil, rotates around rotating dog 4 and makes the change of vane pump bias carry out Displacement Regulation to keep engine pressure constant.At high pressure phase, because the pressure of filler opening 14 is higher than the switching pressure set, drain tap 15 and B mouth 17 do not communicate, A mouth 16 and B mouth 14 communicate, the pressure oil of coming in from filler opening 14 enters the first pressure control cavity 7 and the second pressure control cavity 8 by A mouth 16 and B mouth 14 simultaneously, variable slide block 5, under the effect of the first pressure control cavity 7 and the second pressure control cavity 8 internal pressure oil, rotates around rotating dog 4 and makes the change of vane pump bias carry out Displacement Regulation to keep engine pressure constant.
Claims (1)
1. a mechanical valve control secondary becomes displacement oil pump, comprise mechanical valve, the pump housing, rotor chamber is provided with in the described pump housing, rotor, rotating dog, variable slide block and variable spring are installed in described rotor chamber, described variable slide block is provided with spring lock block, it is characterized in that: between variable slide block and rotor chamber wall, be provided with two pressure feedback chambeies, two pressure feedback chambeies lay respectively at the both sides of rotating dog, wherein with spring lock block on same one side is the first pressure feedback chamber, and another is the second pressure feedback chamber; Described mechanical valve comprises valve pocket, spool and spring, described valve pocket is provided with filler opening, drain tap, A mouth and B mouth, wherein A mouth communicates with the first pressure feedback chamber, and B mouth communicates with the second pressure feedback chamber, and filler opening communicates with A mouth all the time, when inlet pressure is lower than the switching pressure set, drain tap and B mouth communicate, and A mouth and B mouth do not communicate, when inlet pressure is higher than the switching pressure set, drain tap and B mouth do not communicate, and A mouth and B mouth communicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510625446.8A CN105179912B (en) | 2015-09-28 | 2015-09-28 | A kind of mechanical valve control second level change displacement oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510625446.8A CN105179912B (en) | 2015-09-28 | 2015-09-28 | A kind of mechanical valve control second level change displacement oil pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105179912A true CN105179912A (en) | 2015-12-23 |
| CN105179912B CN105179912B (en) | 2019-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510625446.8A Active CN105179912B (en) | 2015-09-28 | 2015-09-28 | A kind of mechanical valve control second level change displacement oil pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN105179912B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762616A (en) * | 2016-12-20 | 2017-05-31 | 南京世界村汽车动力有限公司 | mechanical two-stage variable displacement oil pump |
| CN108716611A (en) * | 2018-07-24 | 2018-10-30 | 世特科汽车工程产品（常州）有限公司 | A kind of engine oil pump assembly of no relief valve |
| CN112013263A (en) * | 2020-09-02 | 2020-12-01 | 湖南机油泵股份有限公司 | Variable displacement oil pump capable of improving volumetric efficiency |
| CN113915509A (en) * | 2021-09-30 | 2022-01-11 | 宋宇希 | Variable-displacement rotor oil pump |
| CN114370594A (en) * | 2021-12-29 | 2022-04-19 | 四川航天世源科技有限公司 | Variable displacement oil pump with supercharging variable |
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| US8007248B2 (en) * | 2008-07-16 | 2011-08-30 | GM Global Technology Operations LLC | Engine speed dependent oil pump pressure regulation |
| CN103343870A (en) * | 2013-07-25 | 2013-10-09 | 湖南机油泵股份有限公司 | Double-cavity variable displacement vane-type oil pump controlled by mechanical valve |
| CN103836321A (en) * | 2012-11-27 | 2014-06-04 | 日立汽车系统株式会社 | Variable displacement pump |
| CN204312320U (en) * | 2014-09-20 | 2015-05-06 | 湖南省嘉力机械有限公司 | A kind of Novel two-stage variable displacement vane pump |
| CN104653996A (en) * | 2014-10-28 | 2015-05-27 | 宁波吉利罗佑发动机零部件有限公司 | Two-stage variable displacement oil pump |
| 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 |
| CN205014009U (en) * | 2015-09-28 | 2016-02-03 | 湖南机油泵股份有限公司 | Two step change discharge capacity oil pump of machinery valve accuse |
-
2015
- 2015-09-28 CN CN201510625446.8A patent/CN105179912B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8007248B2 (en) * | 2008-07-16 | 2011-08-30 | GM Global Technology Operations LLC | Engine speed dependent oil pump pressure regulation |
| CN103836321A (en) * | 2012-11-27 | 2014-06-04 | 日立汽车系统株式会社 | Variable displacement pump |
| CN103343870A (en) * | 2013-07-25 | 2013-10-09 | 湖南机油泵股份有限公司 | Double-cavity variable displacement vane-type oil pump controlled by mechanical valve |
| CN204312320U (en) * | 2014-09-20 | 2015-05-06 | 湖南省嘉力机械有限公司 | A kind of Novel two-stage variable displacement vane pump |
| CN104653996A (en) * | 2014-10-28 | 2015-05-27 | 宁波吉利罗佑发动机零部件有限公司 | Two-stage variable displacement oil pump |
| 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 |
| CN205014009U (en) * | 2015-09-28 | 2016-02-03 | 湖南机油泵股份有限公司 | Two step change discharge capacity oil pump of machinery valve accuse |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762616A (en) * | 2016-12-20 | 2017-05-31 | 南京世界村汽车动力有限公司 | mechanical two-stage variable displacement oil pump |
| CN108716611A (en) * | 2018-07-24 | 2018-10-30 | 世特科汽车工程产品（常州）有限公司 | A kind of engine oil pump assembly of no relief valve |
| CN112013263A (en) * | 2020-09-02 | 2020-12-01 | 湖南机油泵股份有限公司 | Variable displacement oil pump capable of improving volumetric efficiency |
| CN113915509A (en) * | 2021-09-30 | 2022-01-11 | 宋宇希 | Variable-displacement rotor oil pump |
| CN114370594A (en) * | 2021-12-29 | 2022-04-19 | 四川航天世源科技有限公司 | Variable displacement oil pump with supercharging variable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105179912B (en) | 2019-01-18 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A mechanical valve controlled two-stage variable displacement oil pump Effective date of registration: 20211224 Granted publication date: 20190118 Pledgee: Bank of Beijing Limited by Share Ltd. Changsha branch Pledgor: Hunan Oil Pump Co.,Ltd. Registration number: Y2021430000097 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230105 Granted publication date: 20190118 Pledgee: Bank of Beijing Limited by Share Ltd. Changsha branch Pledgor: Hunan Oil Pump Co.,Ltd. Registration number: Y2021430000097 |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 69 Beizheng Street, Chengguan Town, Hengdong County, Hengyang City, Hunan Province 421000 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 421000 Patentee before: Hunan Oil Pump Co.,Ltd. Country or region before: China |