CN205154293U - A step change discharge capacity impeller pump - Google Patents
A step change discharge capacity impeller pump Download PDFInfo
- Publication number
- CN205154293U CN205154293U CN201520868585.9U CN201520868585U CN205154293U CN 205154293 U CN205154293 U CN 205154293U CN 201520868585 U CN201520868585 U CN 201520868585U CN 205154293 U CN205154293 U CN 205154293U
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- China
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- oil
- control chamber
- pressure
- control valve
- pressure control
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Abstract
The utility model provides a step change discharge capacity impeller pump, including the pump body, feedback pressure control chamber, variable slider, variable spring, feedback pressure control chamber through the oil circuit respectively with pump mouthful and oily bottom shell connected, form one and advance oil path and one and let out oil path, all be equipped with the control valve on two oil circuits, spring under the control valve includes valve barrel, case and is located the case, control valve and main oil gallery link to each other, oil pressure direct action in the case of control valve of main oil gallery, and the drive case moves control circuit's break -make, advances oil path and let out oil path to be in the closed condition simultaneously under the effect of control valve, perhaps opens then another state of closing at one. When advancing oil path and open, the oil pressure that pumps mouthful gets into feedback pressure control intracavity, the oil pressure effect of feedback pressure control intracavity down, the elasticity that the variable spring is overcome to the variable slider deflects, just can realize the machine oil discharge capacity variably.
Description
Technical field
The utility model 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.
Model utility content
The purpose of this utility model 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 utility model 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 utility model 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 utility model;
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, preferred embodiment of the present utility model is: 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 |
|---|---|---|---|
| CN201520868585.9U CN205154293U (en) | 2015-11-04 | 2015-11-04 | A step change discharge capacity impeller pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520868585.9U CN205154293U (en) | 2015-11-04 | 2015-11-04 | A step change discharge capacity impeller pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205154293U true CN205154293U (en) | 2016-04-13 |
Family
ID=55690000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520868585.9U Withdrawn - After Issue CN205154293U (en) | 2015-11-04 | 2015-11-04 | A step change discharge capacity impeller pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205154293U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351028A (en) * | 2015-11-04 | 2016-02-24 | 湖南机油泵股份有限公司 | Primary variable displacement vane pump |
| CN105736366A (en) * | 2016-04-20 | 2016-07-06 | 周丹丹 | Oil way pressure control device and control method thereof |
| CN106969249A (en) * | 2017-04-26 | 2017-07-21 | 奇瑞汽车股份有限公司 | A kind of vane type lubricating oil pump |
| CN109681760A (en) * | 2019-01-04 | 2019-04-26 | 杭州电子科技大学 | A kind of change discharge capacity vane type lubricating oil pump and its fuel supply method |
| CN112324534A (en) * | 2020-11-17 | 2021-02-05 | 湖南机油泵股份有限公司 | Movable supercharged pump outlet control two-stage variable oil pump |
-
2015
- 2015-11-04 CN CN201520868585.9U patent/CN205154293U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351028A (en) * | 2015-11-04 | 2016-02-24 | 湖南机油泵股份有限公司 | Primary variable displacement vane 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 |
| CN106969249A (en) * | 2017-04-26 | 2017-07-21 | 奇瑞汽车股份有限公司 | A kind of vane type lubricating oil pump |
| CN109681760A (en) * | 2019-01-04 | 2019-04-26 | 杭州电子科技大学 | A kind of change discharge capacity vane type lubricating oil pump and its fuel supply method |
| CN112324534A (en) * | 2020-11-17 | 2021-02-05 | 湖南机油泵股份有限公司 | Movable supercharged pump outlet control two-stage variable oil pump |
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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 | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160413 Effective date of abandoning: 20170825 |