CN1162701A - Vane pump - Google Patents
Vane pump Download PDFInfo
- Publication number
- CN1162701A CN1162701A CN 96113104 CN96113104A CN1162701A CN 1162701 A CN1162701 A CN 1162701A CN 96113104 CN96113104 CN 96113104 CN 96113104 A CN96113104 A CN 96113104A CN 1162701 A CN1162701 A CN 1162701A
- Authority
- CN
- China
- Prior art keywords
- blade
- rotor
- center
- vane pump
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005484 gravity Effects 0.000 claims abstract description 31
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000009183 running Effects 0.000 description 1
Abstract
The present invention relates to an improved vane pump which can increase centrifugal force despite at the time of low temperature and a low speed, to improve pump performance, by moving out the center of gravity of the vanes. Said vane pump has blocks of center of gravity to move the center of gravity of the vanes to an outer side for increasing the centrifugal force at the time of low temperature and a low speed. Said vane pump comprises a housing wherein a suction port and an exhaust port are formed, a rotor having plural vane guide grooves provided in a circumferential direction at given intervals, and eccentrically fixed to a rotation spindle in the housing, and vanes inserted into the grooves, to suck and compress the space of the housing while protruding from the grooves.
Description
The present invention relates to a kind of vane pump, especially relate to a kind of improved vane pump, thereby the centrifugal force that it can be increased in the low temperature lower-speed state by the center of gravity of outside moving blade improves the blade pump performance.
Comprise to traditional blades pump shown in Figure 3 as Figure 1A: housing 10 ', rotor 20 ' and blade 40 ', described housing 10 ' has suction port 11 ' and exhaust port 12 ', to be placed on housing 10 ' inner and be rotatably mounted in the rotating shaft 30 ' by forming three or four blade guide groove 21 ' off-centre coaxially for described rotor 20 ', and described blade 40 ' inserts among the guide groove 21 ' of rotor 20 ' so that according to the motion increase of self and the space of compression shell 10 '.
When rotor 20 ' rotates clockwise in company with rotating shaft 30 ' edge, the rotatory force of rotor 20 ' applies certain centrifugal force for each blade 40 ', so blade 40 ' guide groove 21 ' from rotor 20 ' under the blade centrifugal action is protruding, and make the outer end of blade 40 ' and the inner circumferential surface sliding contact of housing 10 '.
In addition, be same as rotor 20 ' arranged off-centre, shell space A, B that is determined by blade 40 ' and the volume of C increase repeatedly and reduce, thereby generate inhalation power and expulsion force, and the suction port 11 ' by housing 10 ' sucks certain amount of fluid and passes through exhaust port 12 ' with its discharge.
Yet, increase at the low temperature (approximately 5-10 ℃) and the viscosity of lower-speed state vane pump working liquid body, in case viscous resistance is higher than the centrifugal force of blade 40 ', blade 40 ' can not be protruding along the blade guide groove 21 ' of rotor 20 ', thereby can not form sliding contact with the inner circumferential surface of housing 10 '.Consequently, space A, B and C can't constitute, and the suction of this system and discharging operation can't be implemented, and whole system is malfunctioning, if above-mentioned fault occurs among the system relevant with the human life, will cause serious problems.
Therefore, an object of the present invention is, a kind of vane pump that can overcome the problem of traditional blades pump existence is provided.
Another object of the present invention is, a kind of vane pump is provided, thereby the centrifugal force that it can be increased in the low temperature lower-speed state by the center of gravity of outside moving blade improves the blade pump performance.
In order to achieve the above object, a kind of vane pump with center of gravity piece is provided, described center of gravity piece is used for blade center of gravity is moved on to the outermost portion of blade, thereby increase the centrifugal force of blade at the low temperature lower-speed state, it is characterized by, this vane pump also comprises a housing, a rotor and a plurality of blade, and described housing has a suction port and an exhaust port; Described rotor has a plurality of blade guide grooves and places in enclosure interior off-centre, and described blade guide groove separates coaxially; Described blade inserts among each blade guide groove, exposes from the blade guide groove, so that increase and the inner space that constitutes of compression shell.
In order to achieve the above object, provide a kind of vane pump, it is characterized by, the composite set that contains rotor and blade comprises: one that stretches out from each blade guide groove end symmetry of rotor engages jaw; And a leakproof slide block that stretches out from the blade interior symmetry, its effect is the friction area that reduces the blade guide groove surface of rotor, and with engage the jaw cooperation and prevent to spill.
In order to achieve the above object, provide a kind of vane pump, it is characterized by, the center of gravity piece of blade comprises a curved portion of making at the blade outermost portion, so that contact with the smooth interior surfaces of housing.
In order to achieve the above object, provide a kind of vane pump, it is characterized by, the center of gravity piece of blade stretches out from the outer surface of rotor, thereby has reduced the diameter of rotor, has improved the efficient of pump.
Other purpose of the present invention, characteristics and superiority also will be stated hereinafter, and the people that are familiar with this technology can be understood and grasp.Purpose of the present invention and superiority will realize by the spirit that particularly points out in the claims.
Describe in detail below in conjunction with accompanying drawing, so that the present invention is had more fully understanding, accompanying drawing only as describing, is not construed as limiting the present invention, wherein:
Figure 1A is the top view of a traditional blades pump.
Figure 1B is the vertical cross-section view of this traditional blades pump.
Fig. 2 is a perspective view that shows conventional rotors and blade assembled state.
Fig. 3 is the perspective view of a traditional blades.
Fig. 4 A is a top view according to vane pump of the present invention.
Fig. 4 B is the vertical cross-section view of this vane pump of the present invention.
Fig. 5 is a perspective view that shows rotor of the present invention and blade assembled state.
Fig. 6 is the perspective view of a blade of the present invention.
Describe the present invention below.Fig. 4 A is the top view of a playscript with stage directions invention vane pump, and Fig. 4 B is its vertical cross-section view.Fig. 5 is a perspective view, be used for describing the assembled state of rotor of the present invention and blade, and Fig. 6 is the perspective view of a blade of the present invention.
As the accompanying drawing state, vane pump of the present invention comprises a housing 10, a rotor 20 and an a plurality of blade 40, described housing 10 has a suction port 11 and an exhaust port 12, described rotor 20 is installed in rotation in the rotating shaft 30 and in housing 10 inner off-centre and places, also have a plurality of blade guide grooves 21 that separate coaxially, and each described blade 40 is inserted among the respective vanes guide groove 21 of rotor 20, so that suck and discharge a certain amount of working liquid body and make some space compression or the increase of housing 10 inside.This vane pump further comprises center of gravity piece 41, and described center of gravity piece 41 is used for making the center of gravity of blade 40 to be in the outside, thereby increases the centrifugal force of blade 40 at low temperature and low speed state.
The composite set of rotor 20 and blade 40 comprises that the joint jaw 22 and the heart leak slide block 42, described jaw 22 is made symmetrically in the end of blade guide groove 21, and leakproof slide block 42 stretches out symmetrically from the inner end of blade 40, so that reduce the sliding contact area with the surface 23 of the blade guide groove 21 of rotor 20, and with engages jaw 22 and cooperates to prevent to spill.
The outermost portion of the center of gravity piece 41 of blade 40 is made a curved portion 41a, so that smoothly contact with internal surface 13 generations of housing 10.
The center of gravity piece 41 of blade 40 stretches out from the outer surface of rotor 20.
If working liquid body is an oil, when this vane pump was worked under the low temperature lower-speed state, the working liquid body viscosity between rotor 20 and blade 40 increased.At this moment, if viscous resistance surpasses the centrifugal force of blade 40, blade 40 just can not be along stretching out in the blade guide groove 21 of rotor 20.
Especially, this phenomenon takes place continually in the low speed operating condition, and in this case, centrifugal force calculates with following formula:
F＝mrw
2
Wherein, F is a centrifugal force, and m is a quality, and r is the center of rotation distance, and w is a rotational velocity.
According to following formula, during invariablenes turning speed, centrifugal force F can regulate apart from (distance between rotor center and the blade center of gravity) by changing leaf quality and center of rotation.
Therefore, at the rotation initial stage that is in the low temperature lower-speed state, can not occur along blade guide groove 21 protruding these problems in order to prevent blade 40, need increase centrifugal force with regard to the heart, therefore center of gravity piece 41 is made on the outermost portion of blade 40, the center of gravity of blade 40 is outwards moved, thereby increase centrifugal force.
Because center of gravity piece 41 is positioned at the outside of rotor 20, during rotor 20 low-speed runnings, blade 40 overcomes the liquid viscous resistance easily, outwards moves along the blade guide groove 21 of rotor 20.In addition, reduce the surface 23 of blade guide groove 21 and the force of sliding friction between the blade 40, also can make blade 40 be easier to move, therefore make leakproof slide block 42 in blade 40 inside, and slide block 42 is contacted with the surface 23 of blade guide groove 21, reduce friction area by this way.
In addition, when blade 40 extend out to maximum value under centrifugal action, centrifugal force was very big.At this moment, the internal surface of housing 10 contacts with blade 40, thereby between is because excessive pressure forms excessive friction.In order to address the above problem, on blade 40, make the heart and leak slide block 42, so that blade 40 is engaged with the jaw 22 that engages of rotor 20, thereby the friction pressure between the internal surface 13 of minimizing shell 10 and the center of gravity piece 41 of blade 40 has consequently reduced the friction of blade 40.
Herein, owing to make curved portion 41a at the outermost portion of blade center of gravity piece 41, this curved portion 41a smoothly contacts with the internal surface 13 of housing 10, thereby has reduced the internal surface 13 of housing 10 and the frictional force between the center of gravity piece 41.
In addition, because the center of gravity piece of blade 40 stretches out from rotor 20, the diameter of rotor 20 has reduced by a center of gravity piece 41 and has stretched out size, makes the rotator inertia square M of rotor to reduce.Consequently,, can save the driving power of pump, thereby improve the efficient of pump according to following formula:
M＝I
zzα
Wherein: I
ZzBe moment of inertia, and α is an angular velocity.
As mentioned above, vane pump according to the present invention outwards moves the center of gravity of blade by the structure of improving rotor and blade, thereby has increased the centrifugal force at the low temperature lower-speed state, and has improved the efficient of vane pump significantly.
Above describe most preferred embodiment of the present invention in detail, be familiar with various distortion, the interpolation that the people of this technology make this and substitute the scope of the present invention that does not all run off the claims regulation.
Claims (6)
1. vane pump, it comprises a housing, a rotor and a plurality of blade, described housing has a suction port and an exhaust port; Described rotor has a plurality of blade guide grooves and places in enclosure interior off-centre, and described blade guide groove separates coaxially; Described blade inserts among each blade guide groove, exposes from the blade guide groove, so that increase and the inner space that constitutes of compression shell, its improvement comprises:
The center of gravity piece, it is used for the center of gravity of blade is moved to the outermost portion of blade, thereby increases the centrifugal force of blade at low temperature low speed state.
2. according to the described vane pump of claim 1, it is characterized by, the composite set that contains described rotor and described blade comprises:
The joint jaw that stretches out from the end symmetry of each described blade guide groove of rotor;
From the leakproof slide block that the blade interior symmetry is stretched out, its effect is the friction area that reduces the blade guide groove surface of described rotor, and engages the jaw cooperation and prevent to spill with described.
3. according to the described vane pump of claim 1, it is characterized by, the described center of gravity piece of described blade comprises a curved portion of making at described blade outermost portion, so that contact with the smooth interior surfaces of described housing.
4. according to the described vane pump of claim 2, it is characterized by, the described center of gravity piece of described blade comprises a curved portion of making at described blade outermost portion, so that contact with the smooth interior surfaces of described housing.
5. according to the described vane pump of claim 1, it is characterized by, the described center of gravity piece of described blade stretches out from the outer surface of described rotor, thereby has reduced the diameter of described rotor, has improved the efficient of pump.
6. according to the described vane pump of claim 2, it is characterized by, the described center of gravity piece of described blade stretches out from the outer surface of described rotor, thereby has reduced the diameter of described rotor, has improved the efficient of pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96113104 CN1162701A (en) | 1996-04-17 | 1996-09-17 | Vane pump |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR11606/96 | 1996-04-17 | ||
| CN 96113104 CN1162701A (en) | 1996-04-17 | 1996-09-17 | Vane pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1162701A true CN1162701A (en) | 1997-10-22 |
Family
ID=5121736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96113104 Pending CN1162701A (en) | 1996-04-17 | 1996-09-17 | Vane pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1162701A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7946833B2 (en) | 2007-12-05 | 2011-05-24 | GM Global Technology Operations LLC | Variable displacement vane pump |
| CN107701446A (en) * | 2017-08-03 | 2018-02-16 | 浙江格凌实业有限公司 | Rotary-vane vaccum pump |
| WO2020062602A1 (en) * | 2018-09-25 | 2020-04-02 | 珠海格力电器股份有限公司 | Compressor pump body, compressor, and air conditioner |
-
1996
- 1996-09-17 CN CN 96113104 patent/CN1162701A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7946833B2 (en) | 2007-12-05 | 2011-05-24 | GM Global Technology Operations LLC | Variable displacement vane pump |
| CN107701446A (en) * | 2017-08-03 | 2018-02-16 | 浙江格凌实业有限公司 | Rotary-vane vaccum pump |
| CN107701446B (en) * | 2017-08-03 | 2019-03-05 | 浙江格凌实业有限公司 | Rotary-vane vaccum pump |
| WO2020062602A1 (en) * | 2018-09-25 | 2020-04-02 | 珠海格力电器股份有限公司 | Compressor pump body, compressor, and air conditioner |
| US11408287B2 (en) | 2018-09-25 | 2022-08-09 | Gree Electric Appliances, Inc. Of Zhuhai | Compressor pump body, compressor, and air conditioner with a vane enlargement portion |
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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 | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: MANDO MACHINERY CORPORATION TO: VALEO MAXDO ELECTRONICS SYSTEM (KOREA) CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Gyeongbuk city of Gyeongju Korea Applicant after: Valeo Manda Electronic System (Korea) Co., Ltd. Address before: Gyeonggi Do, South Korea Applicant before: Mando Machinery Corp. |
|
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |