CN105134589A - Stator assembly capable of changing pump displacement - Google Patents
Stator assembly capable of changing pump displacement Download PDFInfo
- Publication number
- CN105134589A CN105134589A CN201510552813.6A CN201510552813A CN105134589A CN 105134589 A CN105134589 A CN 105134589A CN 201510552813 A CN201510552813 A CN 201510552813A CN 105134589 A CN105134589 A CN 105134589A
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- China
- Prior art keywords
- stator
- rotor
- pump
- stator assembly
- housing
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- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention discloses a stator assembly capable of changing pump displacement. The stator assembly comprises a housing, a stator, a rotor, a plurality of blades and a dowel pin, wherein the stator is arranged on the rotor in a sleeving mode; the rotor is arranged on the middle part of the housing; the dowel pin is arranged at the outer side of the stator; and the blades are uniformly mounted on the stator. According to the stator assembly, the displacement of a steering pump is changed by changing an eccentric distance between the stator and the rotor; output flow of a variable pump can be automatically regulated according to load pressure; and when oil drainage pressure is greater than spring force, the stator can carry out arc-shaped swing under the supporting action of the dowel pin, so that the eccentric distance between the stator and the rotor is reduced, and the flow is quickly reduced along with the increase of drainage pressure. The stator assembly capable of changing pump displacement has the advantages of being simple in structure, stable in performance and relatively long in service life.
Description
Technical field
The present invention relates to a kind of stator module, particularly relate to a kind of stator module that can change pump displacement.
Background technique
Power assistance pump for steering, as one of the load of motor car engine, when adopting energy-saving pump, can reduce engine loading, reduces energy consumption.Along with developing rapidly of hydraulic industry, the novel hydraulic steering pump demand of the low discharge capacity of low energy consumption is very urgent, for traditional type metering pump, flow is directly proportional to rotating speed, after metering pump flow is greater than system demand, its unnecessary flow will form the idle work of this boost pump, and its energy consumption is also a no small value, and this is also the unsurmountable defect of current quantitative pump.
Summary of the invention
Object of the present invention is just to provide a kind of stator module that can change pump displacement to solve the problem.
The present invention is achieved through the following technical solutions above-mentioned purpose:
The present invention includes housing, stator, rotor, blade and locating stud, described stator sleeve is loaded on described rotor, and described rotor is placed in the middle part of described housing, and described locating stud is arranged at the outside of described stator, described blade comprises multiple, is evenly installed on described rotor.
The present invention is preferred, and be provided with stator sleeve in described housing, described stator is installed on described stator sleeve.
The present invention is preferred, and the side of described housing is provided with throttling spring, is fixed by orifice plug.
Beneficial effect of the present invention is:
The present invention is changed by the throw of eccentric changed between stator and rotor and turns to pump delivery, variable displacement pump output flow can regulate automatically with induced pressure, when oil extraction pressure is greater than spring force, stator is under locating stud supporting effect, stator can do arc line shaped and swing, eccentric distance between stator and rotor reduces, and flow increases with row pressure and reduces rapidly; The present invention has that structure is simple, stable performance and working life longer advantage.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation that can change the stator module of pump displacement of the present invention.
In figure: 1-stator sleeve, 2-stator, 3-rotor, 4-blade, 5-throttling spring, 6-locating stud, 7-orifice plug, 8-housing.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1: the present invention includes housing 8, stator 2, rotor 3, blade 4 and locating stud 6, stator 2 is set on rotor 3, and rotor 3 is placed in the middle part of housing 8, and locating stud 6 is arranged at the outside of stator 2, and blade 4 comprises multiple, is evenly installed on rotor 3.
As shown in Figure 1, be provided with stator sleeve 1 in housing 8, stator 2 is installed on stator sleeve 1.
As shown in Figure 1, the side of housing 8 is provided with throttling spring 5, is fixed by orifice plug 7.
In sum, the present invention is changed by the throw of eccentric changed between stator 2 and rotor 3 and turns to pump delivery.The variable displacement pump output flow of this kind of novel component structure can regulate automatically with induced pressure.When oil extraction pressure is greater than throttling spring 5 power, stator 2 is under locating stud 6 supporting effect, and stator 2 can do arc line shaped and swing, and the eccentric distance between stator 2 and rotor 3 reduces, and flow increases with row pressure and reduces rapidly.This kind of novel variable displacement pump flow depends on pump shaft rotating speed and throw of eccentric, and when pump shaft rotating speed changes, the change by throw of eccentric balances or compensates, and the constant flow that boost pump is needed is on the value required for system.This also meets mentality of designing and the theory of energy-saving low discharge capacity.
Those skilled in the art do not depart from essence of the present invention and spirit, various deformation scheme can be had to realize the present invention, the foregoing is only the better feasible embodiment of the present invention, not thereby interest field of the present invention is limited to, the equivalent structure change that all utilizations specification of the present invention and accompanying drawing content are done, is all contained within interest field of the present invention.
Claims (3)
1. one kind can change the stator module of pump displacement, it is characterized in that: comprise housing, stator, rotor, blade and locating stud, described stator sleeve is loaded on described rotor, described rotor is placed in the middle part of described housing, described locating stud is arranged at the outside of described stator, described blade comprises multiple, is evenly installed on described rotor.
2. a kind of stator module that can change pump displacement according to claim 1, it is characterized in that: be provided with stator sleeve in described housing, described stator is installed on described stator sleeve.
3. a kind of stator module that can change pump displacement according to claim 2, is characterized in that: the side of described housing is provided with throttling spring, is fixed by orifice plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510552813.6A CN105134589A (en) | 2015-09-01 | 2015-09-01 | Stator assembly capable of changing pump displacement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510552813.6A CN105134589A (en) | 2015-09-01 | 2015-09-01 | Stator assembly capable of changing pump displacement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105134589A true CN105134589A (en) | 2015-12-09 |
Family
ID=54720093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510552813.6A Pending CN105134589A (en) | 2015-09-01 | 2015-09-01 | Stator assembly capable of changing pump displacement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105134589A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5538400A (en) * | 1992-12-28 | 1996-07-23 | Jidosha Kiki Co., Ltd. | Variable displacement pump |
| CN1439079A (en) * | 2000-06-26 | 2003-08-27 | 乔马-流体机械有限公司 | Vane-cell pump |
| CN2643028Y (en) * | 2003-09-09 | 2004-09-22 | 义乌市凯吉汽配有限公司 | Automobile steering oil pump |
| CN202047981U (en) * | 2011-03-23 | 2011-11-23 | 全兴精工集团有限公司 | Automotive hydraulic power assisted steering pump |
| CN203655624U (en) * | 2013-12-05 | 2014-06-18 | 宁波圣龙汽车动力系统股份有限公司 | Variable displacement vane pump |
-
2015
- 2015-09-01 CN CN201510552813.6A patent/CN105134589A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5538400A (en) * | 1992-12-28 | 1996-07-23 | Jidosha Kiki Co., Ltd. | Variable displacement pump |
| CN1439079A (en) * | 2000-06-26 | 2003-08-27 | 乔马-流体机械有限公司 | Vane-cell pump |
| CN2643028Y (en) * | 2003-09-09 | 2004-09-22 | 义乌市凯吉汽配有限公司 | Automobile steering oil pump |
| CN202047981U (en) * | 2011-03-23 | 2011-11-23 | 全兴精工集团有限公司 | Automotive hydraulic power assisted steering pump |
| CN203655624U (en) * | 2013-12-05 | 2014-06-18 | 宁波圣龙汽车动力系统股份有限公司 | Variable displacement vane pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Zhi Zhen Wuhu County in Anhui province Wuhu city Anhui Bay 241100 Wuhu Economic Development Zone weft four Road No. 88 East Building 02 Applicant after: Anhui Defu steering system of Limited by Share Ltd Address before: 241100, No. four, No. 88, Dong Lu, machinery industry zone, Wuhu County, Wuhu, Anhui Applicant before: Wuhu Defu Steering System Co., Ltd. |
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| COR | Change of bibliographic data | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151209 |
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| RJ01 | Rejection of invention patent application after publication |