CN114922813A - Axial positioning and radial positioning U-shaped combined sliding sheet for sliding sheet pump - Google Patents
Axial positioning and radial positioning U-shaped combined sliding sheet for sliding sheet pump Download PDFInfo
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- CN114922813A CN114922813A CN202210613436.2A CN202210613436A CN114922813A CN 114922813 A CN114922813 A CN 114922813A CN 202210613436 A CN202210613436 A CN 202210613436A CN 114922813 A CN114922813 A CN 114922813A
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- Prior art keywords
- sliding vane
- sliding
- pump
- positioning
- vane
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Links
- 238000005096 rolling process Methods 0.000 claims abstract description 27
- 238000009434 installation Methods 0.000 claims abstract description 6
- 230000006978 adaptation Effects 0.000 claims abstract description 3
- 239000002173 cutting fluid Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
- 229910000464 lead oxide Inorganic materials 0.000 claims description 3
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 claims description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 3
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 1
- 238000005299 abrasion Methods 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C2/3441—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0088—Lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/20—Rotors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The invention relates to a U-shaped combined sliding vane for a sliding vane pump with axial positioning and radial positioning, which comprises a sliding vane and a rolling ball; the sliding sheet comprises a working body, and two ends of the working body are respectively provided with a positioning part so that the sliding sheet forms a U-shaped structure; under the working state, the sliding vane with the U-shaped structure is matched with a U-shaped radial sliding groove correspondingly arranged on a rotor of the sliding vane pump and can slide in the radial direction of the rotor, and two positioning parts of the sliding vane respectively form a limiting structure with the rotor to realize the axial positioning of the sliding vane; the lateral surface of two location portions of gleitbretter respectively is equipped with a spin installation notch, installs the spin of size looks adaptation in the spin installation notch, and under the operating condition, the spin rolls with the track groove that sets up in the pump body and cooperates, can only roll in the track groove, realizes the radial positioning to the gleitbretter. The sliding vane pump adopts the combined sliding vane, the sliding vane is positioned in the axial direction and the radial direction, the non-contact operation of the sliding vane and the pump body can be realized, and the heating and the abrasion are avoided.
Description
Technical Field
The invention relates to a core element of a sliding vane pump, in particular to a U-shaped combined sliding vane for the sliding vane pump, which is axially positioned and radially positioned.
Background
The sliding vane pump is a fluid conveying machine with excellent performance and wide application, and is mainly used for transporting product oil in places such as trains, wharfs, oil tankers and the like. The gleitbretter pump structure includes pump casing (the pump body), rotor and gleitbretter etc. and wherein the most crucial position is the gleitbretter, and conventional gleitbretter is a style of calligraphy, and the outer end contacts with the pump casing, because direct contact is sliding friction, can cause after long-time operation to generate heat and wearing and tearing, weakens power, reduces the efficiency of pump operation, in addition can also make the gleitbretter unreliable. Therefore, it is necessary to search for the operation mode of the sliding vane without contact with the pump body, and the problem of axial and radial positioning of the sliding vane needs to be solved. In addition, for the conventional mode of operation in which the sliding vane contacts the pump body, the reduction of wear and heat generation can be achieved by reducing the contact pressure and the sliding friction, and from this point of view, there is also a need in the art to solve the problem of axial and radial positioning of the sliding vane.
Disclosure of Invention
In order to solve the technical problems, the invention provides the U-shaped combined sliding vane for the sliding vane pump with axial positioning and radial positioning, the sliding vane pump adopts the U-shaped combined sliding vane, and when the U-shaped combined sliding vane works, the sliding vane is positioned in the axial direction and the radial direction, so that the sliding vane and the pump body can run in a non-contact manner, the heating and the abrasion are avoided, or the contact pressure of the sliding vane and the pump body is controlled to be a smaller value through reasonable design tolerance, and the heating and the abrasion are reduced.
The invention provides the following technical scheme:
a U-shaped combined sliding vane for a sliding vane pump with axial positioning and radial positioning comprises a sliding vane and a rolling ball which are used in combination; the sliding sheet comprises a working body, and two ends of the working body are respectively provided with a positioning part so that the sliding sheet forms a U-shaped structure; under the working state, the sliding vane with the U-shaped structure is matched with a U-shaped radial sliding groove correspondingly arranged on a rotor of the sliding vane pump and can slide in the radial direction of the rotor, and two positioning parts of the sliding vane respectively form a limiting structure with the rotor to realize the axial positioning of the sliding vane; the lateral surface of two location portions of gleitbretter respectively is equipped with a spin installation notch, installs the spin of size looks adaptation in the spin installation notch, and under the operating condition, the spin rolls with the track groove roll cooperation that sets up in the pump body, can only roll in the track groove, and the radial positioning to the gleitbretter is realized to the control gleitbretter in the radial ascending position of rotor.
Compared with the prior art, the U-shaped combined sliding vane for the sliding vane pump with axial positioning and radial positioning has the following remarkable progress by adopting a brand new design structure: 1) positioning parts are arranged at two ends of the sliding piece working body to form a U-shaped structure, and are matched with radial sliding grooves correspondingly arranged on the rotor when the sliding piece working body is used, and the two positioning parts form a limiting structure with the rotor respectively, so that the axial positioning of the sliding piece is realized, and the sliding piece is prevented from moving axially and sliding friction is generated between related parts; 2) the positioning part of the sliding vane is provided with a rolling ball, and when the sliding vane works, the rolling ball effectively controls the position of the sliding vane in the radial direction of the rotor along a track groove in the pump body, so that the radial positioning is realized; therefore, the sliding vane pump adopts the U-shaped combined sliding vane, so that the sliding vane and the pump body can run without contact, the heating and the abrasion caused by sliding friction are avoided, or the contact pressure of the sliding vane and the pump body is controlled to be a smaller value through reasonable design tolerance, and the heating and the abrasion are reduced.
Furthermore, in the U-shaped combined sliding vane for the sliding vane pump with axial positioning and radial positioning, the working body of the sliding vane is in a straight rod shape. The working body is designed into a straight rod shape, so that the design and the manufacture of the sliding vane pump are easy, and the industrial implementation is facilitated.
Furthermore, in the U-shaped combined sliding vane for the sliding vane pump with axial positioning and radial positioning, a group of unloading grooves which are uniformly distributed is arranged on the working body. The purpose of reducing the weight is achieved by arranging the unloading groove, so that the load is reduced when the sliding vane pump operates, and the energy consumption is reduced.
Further, in the U-shaped combined sliding vane for the sliding vane pump with axial positioning and radial positioning, the unloading groove may be distributed on the concave surface of the U-shaped structure.
Further, in the U-shaped combined sliding vane for the sliding vane pump with axial positioning and radial positioning, the unloading groove is cylindrical, the diameter of the unloading groove is 1/2-3/4 of the width of the sliding vane, and the height of the unloading groove is 1/2-3/4 of the height of the working body of the sliding vane. In practice, relevant parameters can be determined according to the situation under the condition of ensuring the mechanical strength.
Further, in the U-shaped combined sliding vane for the sliding vane pump with axial positioning and radial positioning, the rolling ball may be made of lead oxide, silicon nitride or tungsten carbide. The rolling ball prepared from the materials has the advantages of hardness, wear resistance and long service life.
Further, in the U-shaped combined sliding vane for the axially-positioned and radially-positioned sliding vane pump, the radius of the rolling ball can be 10-13 mm.
Further, in the U-shaped combined vane for the axially-positioned and radially-positioned vane pump, the rolling ball mounting notch has a rectangular cross section, and is filled with an extreme pressure concentrated cutting fluid. By arranging the extreme pressure concentrated cutting fluid, the lubricating effect is achieved, and the service life is prolonged.
Drawings
FIG. 1 is a schematic structural view of a U-shaped combined vane for an axial positioning and radial positioning vane pump according to the present invention;
FIG. 2 is a view of the U-shaped combination slide of FIG. 1 in the direction of C;
FIG. 3 is a cross-sectional view of the U-shaped combination slip-sheet of FIG. 2 taken along direction D;
FIG. 4 is a schematic diagram of a sliding vane pump according to an embodiment of the present invention;
FIG. 5 is an enlarged view of the structure of the circled portion of FIG. 4;
FIG. 6 is a sectional view taken along line A of the sliding vane pump of FIG. 4;
FIG. 7 is a sectional view of the sliding vane pump of FIG. 4 taken along line B;
FIG. 8 is a schematic view of the state of the vane, rotor, pump body and seal plate in the example.
In the drawings are labeled: 1-sliding vane, 101-working body, 1011-unloading groove, 102-positioning part and 1021-rolling ball mounting notch; 2-rolling ball; 3-a rotor; 4-a pump body; 5-a track groove; 6-sealing plate.
Detailed Description
The invention is further described with reference to the following figures and examples, which are not to be construed as limiting the invention. In the following examples, those not described in detail are conventional means or common technical knowledge in the art.
Example (see fig. 1-8):
the embodiment provides a sliding vane pump, which adopts the U-shaped combined sliding vane for the axial positioning and radial positioning sliding vane pump.
In the embodiment, the U-shaped combined sliding vane for the sliding vane pump with axial positioning and radial positioning comprises a sliding vane 1 and a rolling ball 2 which are used in combination; the sliding sheet 1 comprises a working body 101, and two ends of the working body 101 are respectively provided with a positioning part 102 so that the sliding sheet 1 forms a U-shaped structure; in a working state, the sliding vane 1 in a U-shaped structure is matched with a U-shaped radial sliding groove correspondingly arranged on a rotor 3 of the sliding vane pump and can slide in the radial direction of the rotor 3, and two positioning parts 102 of the sliding vane 1 respectively form a limiting structure with the rotor 3 to realize the axial positioning of the sliding vane 1; the lateral surfaces of two positioning parts 102 of the slip sheet 1 are respectively provided with a rolling ball mounting notch 1021, a rolling ball 2 with matched size is mounted in the rolling ball mounting notch 1021, under the working state, the rolling ball 2 is in rolling fit with a track groove 5 arranged in a pump body 4 and can only roll in the track groove 5, the radial position of the slip sheet 1 in a rotor 3 is controlled, and the radial positioning of the slip sheet 1 is realized.
In this embodiment, the working body 101 of the slider 1 is in the shape of a straight rod.
In this embodiment, the working body 101 is provided with a set of unloading slots 1011 uniformly distributed. By arranging the unloading groove 1011, the mass is effectively reduced while the mechanical strength of the sliding vane 1 is kept, so that the load during operation is reduced, the energy consumption is reduced, and meanwhile, smaller inertia is brought due to small mass, and smooth operation of the sliding vane mechanism is facilitated.
In this embodiment, the relief grooves 1011 are distributed on the concave surface of the U-shaped structure.
In this embodiment, the unloading slot 1011 is cylindrical, the diameter of the unloading slot 1011 is 3/4 of the slide width, and the height of the unloading slot 1011 is 3/4 of the height of the working body 101 of the slide 1.
In this embodiment, the material of the ball 2 is silicon nitride. When the technical scheme of the invention is implemented, the rolling ball 2 can also be made of other wear-resistant hard materials, such as lead oxide, tungsten carbide and the like.
In this embodiment, the radius of the ball 2 is 13 mm. In the practice of the present invention, ball 2 may be sized according to the specifications of a sliding vane pump.
In this embodiment, the ball mounting notch 1021 has a rectangular cross-sectional shape, in which extreme pressure concentrated cutting fluid is filled. Through setting up lubricating structure, play the effect that prevents spin wearing and tearing.
In the present embodiment, the sliding vane 1, the rolling ball 2, the rotor 3, and the sealing plate 6 (the track groove 5 is provided on the sealing plate 6) constitute a sliding vane mechanism; when the pump works, the rotor 3 rotates, the sliding vane 1 rotates around the rotor shaft along with the rotor 3, and meanwhile, the sliding vane 1 drives the rolling ball 2 to roll along the track groove 5, so that the sliding vane 1 slides in the radial direction of the rotor 3 and is close to the pump body 4 and has a gap d.
The position of the sliding vane 1 in the radial direction of the rotor 3 is determined by the rolling balls 2 and the track groove 5. In the operation process, the rolling ball 2 moves along the track groove 5, and the sliding vane 1 slides along the U-shaped radial sliding groove on the rotor 3 under the action of the rolling ball 2 while rotating around the rotor shaft, and keeps close to the pump body 1 and has a gap d. The existence of clearance d has effectively avoided the sliding friction between gleitbretter 1 and the pump body 4, and then has effectively avoided wearing and tearing and the production that generates heat.
In this embodiment, the gap d is 3 mm. The clearance d is too large to cause the pump to work normally, and considering performance and manufacturing factors, the clearance d is controlled to be about 3 mm.
In this embodiment, the number of the sliding vanes 1 is 3, and the sliding vanes are uniformly distributed along the circumferential direction of the rotor 3. I.e. distributed at 120 deg. intervals two by two. In the implementation, the number of the sliding pieces 1 is small, and cost control is facilitated.
In the present embodiment, the track groove 5 is a circular groove provided eccentrically with respect to the drive shaft of the rotor.
It should be noted that the U-shaped combined sliding vane for sliding vane pump of the present invention is not limited to the application in the above embodiments, and may be applied to other sliding vane pumps. For example, the sliding vane 1 and the pump body 4 are designed to be in contact fit, so long as reasonable design tolerance is adopted, and smooth operation of the pump is ensured. By adopting the U-shaped combined sliding vane, the sliding vane 1 is radially positioned through reasonable design tolerance, so that the pressure between the sliding vane 1 and the inner wall of the pump body 4 is lower than that in the prior art, thereby reducing the friction force and reducing the abrasion and the heating.
It should also be noted that the sliding vane pump has many types, and the U-shaped combined sliding vane of the present invention is only applicable to fall into the protection scope of the present invention.
In the present invention, the terms "radial" and "axial" are used with respect to the drive shaft of the rotor 2.
The above general description of the invention and the description of the specific embodiments thereof, as referred to in this application, should not be construed as limiting the technical solutions of the invention. Those skilled in the art can add, reduce or combine the technical features disclosed in the general description and/or the specific embodiments (including the examples) to form other technical solutions within the protection scope of the present application according to the disclosure of the present application without departing from the invention constituent elements involved.
Claims (8)
1. The utility model provides a U type combination gleitbretter for axial positioning radial positioning's gleitbretter pump which characterized in that: comprises a slide sheet (1) and a rolling ball (2) which are used in combination; the sliding piece (1) comprises a working body (101), and two ends of the working body (101) are respectively provided with a positioning part (102) so that the sliding piece (1) forms a U-shaped structure; under the working state, the sliding vane (1) in a U-shaped structure is matched with a U-shaped radial sliding groove correspondingly arranged on a rotor (3) of the sliding vane pump and can slide in the radial direction of the rotor (3), two positioning parts (102) of the sliding vane (1) respectively form a limiting structure with the rotor (3), and the axial positioning of the sliding vane (1) is realized; the lateral surface of two location portion (102) of gleitbretter (1) respectively is equipped with a spin installation notch (1021), installs spin (2) of size looks adaptation in spin installation notch (1021), and under the operating condition, spin (2) and the track groove (5) roll cooperation that sets up in the pump body (4) can only roll in track groove (5), and the radial location to gleitbretter (1) is realized in the radial ascending position of rotor (3) in control gleitbretter (1).
2. The U-shaped combination slide for an axially positioned and radially positioned slide pump according to claim 1, wherein: the working body (101) of the sliding sheet (1) is in a straight rod shape.
3. The U-shaped combination slide for an axially positioned and radially positioned slide pump according to claim 2, wherein: the work body (101) is provided with a group of unloading grooves (1011) which are uniformly distributed.
4. The axially positioned radially positioned U-shaped composite slide for a slide pump according to claim 3, wherein: the unloading grooves (1011) are distributed on the concave surface of the U-shaped structure.
5. The U-shaped combination slide for an axially positioned and radially positioned slide pump according to claim 3 or 4, wherein: the unloading groove (1011) is cylindrical, the diameter of the unloading groove (1011) is 1/2-3/4 of the width of the slide sheet, and the height of the unloading groove (1011) is 1/2-3/4 of the height of the working body (101) of the slide sheet (1).
6. The U-shaped combination vane for an axially positioned and radially positioned vane pump of claim 1, further comprising: the material of the rolling ball (2) is lead oxide, silicon nitride or tungsten carbide.
7. The U-shaped combination vane for an axially positioned and radially positioned vane pump of claim 6, wherein: the radius of the rolling ball (2) is 10-13 mm.
8. The U-shaped combination vane for an axially positioned and radially positioned vane pump of claim 1, further comprising: the section of the rolling ball mounting notch (1021) is rectangular, and concentrated cutting fluid under extreme pressure is filled in the rolling ball mounting notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210613436.2A CN114922813A (en) | 2022-05-31 | 2022-05-31 | Axial positioning and radial positioning U-shaped combined sliding sheet for sliding sheet pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210613436.2A CN114922813A (en) | 2022-05-31 | 2022-05-31 | Axial positioning and radial positioning U-shaped combined sliding sheet for sliding sheet pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114922813A true CN114922813A (en) | 2022-08-19 |
Family
ID=82812715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210613436.2A Pending CN114922813A (en) | 2022-05-31 | 2022-05-31 | Axial positioning and radial positioning U-shaped combined sliding sheet for sliding sheet pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114922813A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2864159Y (en) * | 2005-12-24 | 2007-01-31 | 浙江工业大学 | Double-function non-contact sliding-vane pump |
| CN201071808Y (en) * | 2007-06-15 | 2008-06-11 | 浙江王力车业有限公司 | Sliding-vane pump equipped with pressure bias component |
| KR20120088048A (en) * | 2010-11-09 | 2012-08-08 | 이기춘 | Load decreased and compressibility improved vane pump |
| CN103486030A (en) * | 2013-09-26 | 2014-01-01 | 常熟市淼泉压缩机配件有限公司 | Variable-displacement sliding vane type automobile air conditioner compressor |
| CN107084128A (en) * | 2017-04-19 | 2017-08-22 | 宁波合力机泵股份有限公司 | A kind of inside and outside track controllable combined rolling slide plate and sliding-vane pump |
-
2022
- 2022-05-31 CN CN202210613436.2A patent/CN114922813A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2864159Y (en) * | 2005-12-24 | 2007-01-31 | 浙江工业大学 | Double-function non-contact sliding-vane pump |
| CN201071808Y (en) * | 2007-06-15 | 2008-06-11 | 浙江王力车业有限公司 | Sliding-vane pump equipped with pressure bias component |
| KR20120088048A (en) * | 2010-11-09 | 2012-08-08 | 이기춘 | Load decreased and compressibility improved vane pump |
| CN103486030A (en) * | 2013-09-26 | 2014-01-01 | 常熟市淼泉压缩机配件有限公司 | Variable-displacement sliding vane type automobile air conditioner compressor |
| CN107084128A (en) * | 2017-04-19 | 2017-08-22 | 宁波合力机泵股份有限公司 | A kind of inside and outside track controllable combined rolling slide plate and sliding-vane pump |
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