CN105351028A - Primary variable displacement vane pump - Google Patents
Primary variable displacement vane pump Download PDFInfo
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- CN105351028A CN105351028A CN201510737217.5A CN201510737217A CN105351028A CN 105351028 A CN105351028 A CN 105351028A CN 201510737217 A CN201510737217 A CN 201510737217A CN 105351028 A CN105351028 A CN 105351028A
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- oil
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Abstract
The invention provides a primary variable displacement vane pump which comprises a pump body, a feedback pressure control cavity, a variable sliding block and a variable spring. The feedback pressure control cavity is connected with a pump outlet and an oil pan through oil passageways, the oil inlet passageway and the oil drainage passageway are formed, and control valves are arranged on the two oil passageways respectively; each control valve comprises a valve sleeve, a valve element and a spring located below the valve element; and the control valves are connected with a main oil passageway, engine oil of the main oil passageway directly acts on the valve elements of the control valves to drive the valve elements to move so as to control the oil passageways to be connected or disconnected, and the oil inlet passageway and the oil drainage passageway can be in the disconnected state at the same time or one is in the connected state while the other is in the disconnected state under the action of the control valves. When the oil inlet passageway is connected, the engine oil of the pump outlet enters the feedback pressure control cavity through pressure, the variable sliding block overcomes elastic force of the variable spring to be deflected under the action of oil pressure in the feedback pressure control cavity, and the displacement of the engine oil is variable.
Description
Technical field
The present invention relates to lubricating system of IC engine technical field, particularly a kind of one-level variable-displacement blade type vane pump.
Background technique
Along with engine lubrication system vane pump becomes the growing and universal of Displacement Technology, blade type vane 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, and wherein single-acting chamber feedback can be designed to one-level variable displacement pattern.
Summary of the invention
The object of this invention is to provide the one-level variable displacement vane pump of a kind of single-acting chamber feedback.
The new technological scheme of this practicality is: a kind of one-level variable displacement vane pump, comprise the pump housing, feedback pressure control chamber, variable slide block, variable spring, described feedback pressure control chamber is connected with pump discharge and oil sump respectively by oil circuit, form an oil-feed path and a draining path, article two, oil circuit is equipped with control valve, described control valve comprises valve pocket, spool and the spring be positioned under spool, described control valve is connected with main oil gallery, the engine oil pressure of main oil gallery directly acts on the spool of control valve, spool is driven to move the break-make of oil circuit control, under the effect of control valve, oil-feed path and draining path can be in closed condition simultaneously, or be in one and open then another state of closing.
In technique scheme, control valve is the break-make controlling relevant oil circuit according to the size of main oil gallery engine oil pressure, when oil-feed path is opened, the engine oil pressure of pump discharge enters in feedback pressure control chamber, under oil pressure effect in feedback pressure control chamber, the elastic force that variable slide block overcomes variable spring deflects, and just can realize the variable of machine oil discharge capacity.
The further technological scheme of the present invention is: the oil-feed path of described feedback pressure control chamber and the switch of draining path are all controlled by same control valve, the valve pocket of described control valve is provided with main oil gallery interface, pump discharge interface, feedback pressure control chamber interface, drain tap, and described spool is provided with oil groove;
A. in the starting stage, when the pressure that the engine oil pressure of main oil gallery sets lower than control valve, described pump discharge interface is not communicated with described feedback pressure control chamber interface, oil-feed path is in closed condition, described feedback pressure control chamber interface is communicated with described drain tap, and draining path is in opening state, and the oil pressure now in feedback pressure control chamber is zero, variable slide block rotates to feedback pressure control chamber under the elastic force effect of variable spring, and vane pump runs with maximum pump discharge;
B. when the pressure that the engine oil pressure of main oil gallery sets higher than control valve, the engine oil pressure of main oil gallery promotes spool and moves to spring chamber, described pump discharge interface and described feedback pressure control chamber orifice, oil-feed path is in opening state, described feedback pressure control chamber interface is not communicated with described drain tap, draining path is in closed condition, now be full of pressure oil in feedback pressure control chamber, under oil pressure effect in feedback pressure control chamber, the elastic force that variable slide block overcomes variable spring rotates, the bias of vane pump is reduced, the corresponding minimizing of output flow of pump, the oil pressure of motor progressively declines,
C. along with the decline of engine oil pressure, when the pressure that the engine oil pressure of main oil gallery sets lower than control valve, spool moves to main oil gallery interface direction under the elastic force effect of spring, described pump discharge interface, drain tap is not communicated with described feedback pressure control chamber interface, oil-feed path and draining path are all in closed condition, pressure oil now in feedback pressure control chamber declines rapidly, the elastic force of variable spring is greater than the engine oil pressure in feedback pressure control chamber, variable slide block rotates to feedback pressure control chamber under the elastic force effect of variable spring, the bias of vane pump is increased, the corresponding increase of output flow of pump, the oil pressure of motor increases, step b and c hockets afterwards, stablizes to keep the oil pressure of motor.
Because the oil-feed path of feedback pressure control chamber and the switch of draining path are all controlled by same control valve, thus make total compact and reasonable more, reaction velocity is faster.
The preferred technological scheme of the present invention is: be provided with endless oil groove in the middle part of the spool of described control valve; Described control valve is integrated in the pump housing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the control valve enlarged diagram in Fig. 1;
Reference character is:
1---the pump housing 2---feedback pressure control chamber 3---variable slide block
4---variable spring 5---control valve
51---valve pocket 52---spring 53---spool 54---main oil gallery interfaces
55---pump discharge interface 56---feedback pressure control chamber interface 57---drain taps.
Embodiment
As Fig. 1, shown in 2, the preferred embodiments of the present invention are: a kind of one-level variable displacement vane pump, comprise the pump housing 1, feedback pressure control chamber 2, variable slide block 3, variable spring 4, described feedback pressure control chamber 2 is connected with pump discharge and oil sump respectively by oil circuit, form an oil-feed path and a draining path, article two, oil circuit is all controlled by same control valve 5, described control valve 5 is integrated in the pump housing 1, described control valve 5 comprises valve pocket 51, spool 53 and the spring 52 be positioned under spool 53, described valve pocket 51 is provided with main oil gallery interface 54, pump discharge interface 55, feedback pressure control chamber interface 56, drain tap 57, the middle part of described spool 53 is provided with annular oil groove.
The working procedure of the vane pump of said structure is as follows:
A. in the starting stage, when the pressure that the engine oil pressure of main oil gallery sets lower than control valve 5, described pump discharge interface 55 is not communicated with described feedback pressure control chamber interface 56, oil-feed path is in closed condition, described feedback pressure control chamber interface 56 is communicated with described drain tap 57, and draining path is in opening state, and the oil pressure now in feedback pressure control chamber 2 is zero, variable slide block 3 rotates to feedback pressure control chamber 2 under the elastic force effect of variable spring 4, and vane pump runs with maximum pump discharge;
B. when the pressure that the engine oil pressure of main oil gallery sets higher than control valve 5, the engine oil pressure of main oil gallery promotes spool 53 and moves to spring chamber, described pump discharge interface 55 is communicated with described feedback pressure control chamber interface 56, oil-feed path is in opening state, described feedback pressure control chamber interface 56 is not communicated with described drain tap 57, draining path is in closed condition, now be full of pressure oil in feedback pressure control chamber 2, under oil pressure effect in feedback pressure control chamber 2, the elastic force that variable slide block 3 overcomes variable spring 4 rotates, the bias of vane pump is reduced, the corresponding minimizing of output flow of pump, the oil pressure of motor progressively declines,
C. along with the decline of engine oil pressure, when the pressure that the engine oil pressure of main oil gallery sets lower than control valve 5, spool 53 moves to main oil gallery interface 54 direction under the elastic force effect of spring 52, described pump discharge interface 55, drain tap 57 is not communicated with described feedback pressure control chamber interface 56, oil-feed path and draining path are all in closed condition, pressure oil now in feedback pressure control chamber 2 declines rapidly, the elastic force of variable spring 4 is greater than the engine oil pressure in feedback pressure control chamber 2, variable slide block 3 rotates to feedback pressure control chamber 2 under the elastic force effect of variable spring 4, the bias of vane pump is increased, the corresponding increase of output flow of pump, the oil pressure of motor increases, step b and c hockets afterwards, stablizes to keep the oil pressure of motor.
In technique scheme, control valve 5 is the break-makes controlling relevant oil circuit according to the size of main oil gallery engine oil pressure, control valve 5 is connected with main oil gallery, the engine oil pressure of main oil gallery directly acts on the spool 53 of control valve 5, spool 53 is driven to move the break-make of oil circuit control, under the effect of control valve 5, oil-feed path and draining path can be in closed condition simultaneously, or be in one and open then another state of closing, thus the oil pressure in feedback pressure control chamber 2 is changed, under the two-way function of the oil pressure in feedback pressure control chamber 2 and variable spring 4, variable slide block 3 can carry out the deflection of different direction and amplitude, thus realize the variable of machine oil discharge capacity, the oil pressure of motor is kept to be in steady state all the time.Because the oil-feed path of feedback pressure control chamber 2 and the switch of draining path are all controlled by same control valve, thus make total compact and reasonable more, reaction velocity is faster.
Claims (4)
1. an one-level variable displacement vane pump, it is characterized in that: comprise the pump housing (1), feedback pressure control chamber (2), variable slide block (3), variable spring (4), described feedback pressure control chamber (2) is connected with pump discharge and oil sump respectively by oil circuit, form an oil-feed path and a draining path, article two, oil circuit is equipped with control valve (5), described control valve (5) comprises valve pocket (51), spool (53) and the spring (52) be positioned under spool (53), described control valve (5) is connected with main oil gallery, the engine oil pressure of main oil gallery directly acts on the spool (53) of control valve (5), spool (53) is driven to move the break-make of oil circuit control, under the effect of control valve (5), oil-feed path and draining path can be in closed condition simultaneously, or be in one and open then another state of closing.
2. one-level variable displacement vane pump according to claim 1, it is characterized in that: the oil-feed path of described feedback pressure control chamber (2) and the switch of draining path are all controlled by same control valve (5), the valve pocket (51) of described control valve (5) is provided with main oil gallery interface (54), pump discharge interface (55), feedback pressure control chamber interface (56), drain tap (57), and described spool (53) is provided with oil groove;
A. in the starting stage, when the pressure that the engine oil pressure of main oil gallery sets lower than control valve (5), described pump discharge interface (55) is not communicated with described feedback pressure control chamber interface (56), oil-feed path is in closed condition, described feedback pressure control chamber interface (56) is communicated with described drain tap (57), draining path is in opening state, oil pressure now in feedback pressure control chamber (2) is zero, variable slide block (3) rotates to feedback pressure control chamber (2) under the elastic force effect of variable spring (4), and vane pump runs with maximum pump discharge;
B. when the pressure that the engine oil pressure of main oil gallery sets higher than control valve (5), the engine oil pressure of main oil gallery promotes spool (53) and moves to spring chamber, described pump discharge interface (55) is communicated with described feedback pressure control chamber interface (56), oil-feed path is in opening state, described feedback pressure control chamber interface (56) is not communicated with described drain tap (57), draining path is in closed condition, now be full of pressure oil in feedback pressure control chamber (2), under oil pressure effect in feedback pressure control chamber (2), the elastic force that variable slide block (3) overcomes variable spring (4) rotates, the bias of vane pump is reduced, the corresponding minimizing of output flow of pump, the oil pressure of motor progressively declines,
C. along with the decline of engine oil pressure, when the pressure that the engine oil pressure of main oil gallery sets lower than control valve (5), spool (53) moves to main oil gallery interface (54) direction under the elastic force effect of spring (52), described pump discharge interface (55), drain tap (57) is not communicated with described feedback pressure control chamber interface (56), oil-feed path and draining path are all in closed condition, pressure oil now in feedback pressure control chamber (2) declines rapidly, the elastic force of variable spring (4) is greater than the engine oil pressure in feedback pressure control chamber (2), variable slide block (3) rotates to feedback pressure control chamber (2) under the elastic force effect of variable spring (4), the bias of vane pump is increased, the corresponding increase of output flow of pump, the oil pressure of motor increases, step b and c hockets afterwards, stablizes to keep the oil pressure of motor.
3. one-level variable displacement vane pump according to claim 2, is characterized in that: spool (53) middle part of described control valve (5) is provided with endless oil groove.
4. one-level variable displacement vane pump as claimed in any of claims 1 to 3, is characterized in that: described control valve (5) is integrated in the pump housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510737217.5A CN105351028B (en) | 2015-11-04 | 2015-11-04 | A kind of one-level variable displacement vane pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510737217.5A CN105351028B (en) | 2015-11-04 | 2015-11-04 | A kind of one-level variable displacement vane pump |
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| Publication Number | Publication Date |
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| CN105351028A true CN105351028A (en) | 2016-02-24 |
| CN105351028B CN105351028B (en) | 2017-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510737217.5A Active CN105351028B (en) | 2015-11-04 | 2015-11-04 | A kind of one-level variable displacement vane pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420149A (en) * | 2017-09-09 | 2017-12-01 | 湖南机油泵股份有限公司 | A kind of two level displacement-variable oil pump |
| CN111174078A (en) * | 2020-03-20 | 2020-05-19 | 湖南机油泵股份有限公司 | Single-side support oil pump with chain wheel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6763797B1 (en) * | 2003-01-24 | 2004-07-20 | General Motors Corporation | Engine oil system with variable displacement pump |
| CN101163883A (en) * | 2006-10-10 | 2008-04-16 | 约马液压机械有限公司 | Vane machine, in particular vane pump |
| CN101443557A (en) * | 2006-03-27 | 2009-05-27 | 盖茨公司 | Variable displacement sliding vane pump |
| DE102009024698A1 (en) * | 2009-06-12 | 2010-12-23 | Mahle International Gmbh | Characteristic-map-controlled lubricant pump system, has pressure chambers arranged in lubricant pump and used for moving actuating unit toward spring, where one of pressure chambers has smaller dimension than that of other pressure chamber |
| CN203655624U (en) * | 2013-12-05 | 2014-06-18 | 宁波圣龙汽车动力***股份有限公司 | Variable displacement vane pump |
| CN205154293U (en) * | 2015-11-04 | 2016-04-13 | 湖南机油泵股份有限公司 | A step change discharge capacity impeller pump |
-
2015
- 2015-11-04 CN CN201510737217.5A patent/CN105351028B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6763797B1 (en) * | 2003-01-24 | 2004-07-20 | General Motors Corporation | Engine oil system with variable displacement pump |
| CN101443557A (en) * | 2006-03-27 | 2009-05-27 | 盖茨公司 | Variable displacement sliding vane pump |
| CN101163883A (en) * | 2006-10-10 | 2008-04-16 | 约马液压机械有限公司 | Vane machine, in particular vane pump |
| DE102009024698A1 (en) * | 2009-06-12 | 2010-12-23 | Mahle International Gmbh | Characteristic-map-controlled lubricant pump system, has pressure chambers arranged in lubricant pump and used for moving actuating unit toward spring, where one of pressure chambers has smaller dimension than that of other pressure chamber |
| CN203655624U (en) * | 2013-12-05 | 2014-06-18 | 宁波圣龙汽车动力***股份有限公司 | Variable displacement vane pump |
| CN205154293U (en) * | 2015-11-04 | 2016-04-13 | 湖南机油泵股份有限公司 | A step change discharge capacity impeller pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420149A (en) * | 2017-09-09 | 2017-12-01 | 湖南机油泵股份有限公司 | A kind of two level displacement-variable oil pump |
| CN111174078A (en) * | 2020-03-20 | 2020-05-19 | 湖南机油泵股份有限公司 | Single-side support oil pump with chain wheel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105351028B (en) | 2017-08-25 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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 primary variable displacement vane pump Effective date of registration: 20211224 Granted publication date: 20170825 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: 20170825 Pledgee: Bank of Beijing Limited by Share Ltd. Changsha branch Pledgor: Hunan Oil Pump Co.,Ltd. Registration number: Y2021430000097 |
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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: One stage variable displacement vane pump Effective date of registration: 20230130 Granted publication date: 20170825 Pledgee: Bank of Beijing Limited by Share Ltd. Changsha branch Pledgor: Hunan Oil Pump Co.,Ltd. Registration number: Y2023430000008 |