CN109139465B - Rotor structure of multicylinder pump, multicylinder pump and device with multicylinder pump - Google Patents
Rotor structure of multicylinder pump, multicylinder pump and device with multicylinder pump Download PDFInfo
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- CN109139465B CN109139465B CN201810857309.0A CN201810857309A CN109139465B CN 109139465 B CN109139465 B CN 109139465B CN 201810857309 A CN201810857309 A CN 201810857309A CN 109139465 B CN109139465 B CN 109139465B
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- roller
- eccentric
- rotor structure
- multicylinder
- pump
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- 238000005057 refrigeration Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 24
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
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Classifications
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- 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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
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- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention provides a rotor structure of a multi-cylinder pump, the multi-cylinder pump and a device with the multi-cylinder pump, wherein the rotor structure of the multi-cylinder pump comprises: the crankshaft is provided with a shaft body and eccentric parts, wherein the shaft body comprises a connecting section for connecting two adjacent eccentric parts and two outer side shaft sections which are respectively arranged at the back sides of the two eccentric parts at the outermost side of the crankshaft; a first roller installed on one of the two outermost eccentric portions; at least one second roller mounted on the other corresponding eccentric portions; the distance H1 between two adjacent eccentric parts is not more than the thickness H2 of the second roller; when the front end of the second roller in the installation moving direction is abutted against the next eccentric part, a pivot fulcrum is formed between the tail end of the inner hole of the second roller on the abutting side in the installation moving direction and the sleeved eccentric part, and the tail end of the inner hole of the second roller on the opposite side in the radial direction and the tail end of the outer circle of the eccentric part in the installation moving direction do not interfere with each other structurally in rotation by taking the pivot as a rotating shaft, so that the efficiency of the multi-cylinder pump can be improved.
Description
Technical Field
The invention relates to the technical field of pump bodies, in particular to a rotor structure of a multi-cylinder pump, the multi-cylinder pump and a device with the multi-cylinder pump.
Background
The rotor of the prior art double-cylinder compressor, as shown in fig. 1, generally comprises a shaft body and an upper eccentric part and a lower eccentric part, the shaft body comprises a middle section (10) connected between the two eccentric parts, a long shaft 20 connected to one end of the upper eccentric part 40 far away from the lower eccentric part 50, and a short shaft 30 connected to one end of the lower eccentric part 50 far away from the upper eccentric part 40, when the displacement is large, the crankshaft is designed to be a large shaft and a small shaft (the long shaft 20 is large, the short shaft 30 is small), wherein the radius of the crankshaft long shaft 20 is r1 ', the radius of the crankshaft upper eccentric part 40 is r 2', the eccentric amount of the crankshaft upper eccentric part 40 is e ', when the eccentric amount of the crankshaft upper eccentric part 40 satisfies e' > r2 '-r 1', that is, when the eccentric amount of the eccentric portion 40 of the crankshaft is large, the upper cylinder roller 60 can be inserted only from the stub shaft 30, therefore, in this case of the two-cylinder compressor, the upper and lower cylinder rollers are nested and assembled from the stub shaft 30.
In order to insert the upper cylinder roller 60 into the upper eccentric portion of the crankshaft from the stub shaft 30, the distance H1 'between the upper eccentric portion 40 of the crankshaft and the lower eccentric portion 50 of the crankshaft is usually set to be greater than the roller height H2', so that the upper cylinder roller 60 can be inserted into the upper eccentric portion 40 of the crankshaft, but the distance between the upper eccentric portion 50 and the lower eccentric portion 50 of the crankshaft needs to be increased, which results in an increase in the distance between the two cylinders, and is disadvantageous in improving the efficiency of the pump body.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects that the distance between the upper and lower crankshaft eccentric parts of the pump body structure is larger and the pump body efficiency is lower in order to meet the requirement of installation of the double-cylinder compressor in the prior art, thereby providing the rotor structure of the multi-cylinder pump, the multi-cylinder pump and the device with the multi-cylinder pump, which can meet the requirement of installation, shorten the distance between the upper and lower crankshaft eccentric parts and improve the pump body efficiency.
The present invention provides a rotor structure of a multicylinder pump, comprising:
the crankshaft is provided with a shaft body and eccentric parts with the number corresponding to that of the cylinder bodies, wherein the shaft body comprises a connecting section for connecting two adjacent eccentric parts and two outer side shaft sections which are respectively arranged on the opposite sides of the two eccentric parts on the outermost side of the crankshaft;
a first roller adapted to be mounted on one of the two outermost eccentric portions;
at least one second roller adapted to be mounted on the other corresponding eccentric portion;
the distance H1 between two adjacent eccentric parts is less than or equal to the thickness H2 of the second roller; and in the state that the front end of the second roller in the mounting and moving direction abuts against the next eccentric part, a pivot fulcrum is formed between the tail end of the inner hole of the second roller in the mounting and moving direction and the sleeved eccentric part on the abutting side, and the tail end of the inner hole of the second roller in the mounting and moving direction and the tail end of the excircle of the eccentric part in the mounting and moving direction do not structurally interfere with each other in rotation by taking the fulcrum as a rotating shaft on the opposite side in the radial direction.
An inner chamfer with an angle of 30-70 degrees is formed at the tail end of the inner hole of the second roller in the mounting and moving direction, the projection length of the inner chamfer in the axial direction is H3, an outer chamfer with an angle of 30-70 degrees is formed at the tail end of the outer circle of the eccentric part in the mounting and moving direction, the projection length of the outer chamfer in the axial direction is H4, and H1+ H4 is not less than H2-H3.
The angle range of the inner chamfer is 45-60 degrees, and the angle range of the outer chamfer is 45-60 degrees.
H1+ H4 meets the requirement that H1+ H4 is more than or equal to 0.95H2 and is more than or equal to 0.5H 2.
H2-2H3 meets the requirement that H2-2H3 is not more than 0.95H2 and is not more than 0.5H 2.
H1 satisfies that H1 is more than or equal to 0.7H2 and less than or equal to 0.95H 2.
The rotor structure of the multi-cylinder pump is used for a refrigeration compressor and meets the requirements of 0-1 mm (H1+ H4) - (H2-H3).
The multi-cylinder pump rotor structure is used for a refrigeration compressor and meets the condition that H4 is more than or equal to 0.3mm and less than or equal to 0.5 mm.
The crankshaft comprises two eccentric parts; the rotor structure of the multi-cylinder pump includes the second roller mounted correspondingly to the eccentric portion on the rear side in the mounting direction, and the first roller mounted correspondingly to the eccentric portion on the front side in the mounting direction.
The invention also provides a multi-cylinder pump, which comprises the rotor structure of the multi-cylinder pump.
The invention also provides a device with the multi-cylinder pump, which comprises the multi-cylinder pump.
The device with a multicylinder pump is a multicylinder compressor.
The technical scheme of the invention has the following advantages:
1. the invention provides a rotor structure of a multi-cylinder pump, comprising: the crankshaft is provided with a shaft body and eccentric parts with the number corresponding to that of the cylinder bodies, wherein the shaft body comprises a connecting section for connecting two adjacent eccentric parts and two outer side shaft sections which are respectively arranged on the opposite sides of the two eccentric parts on the outermost side of the crankshaft; a first roller adapted to be mounted on one of the two outermost eccentric portions; at least one second roller adapted to be mounted on the other corresponding eccentric portion; the distance H1 between two adjacent eccentric parts is less than or equal to the thickness H2 of the second roller; the front end of the second roller in the installation moving direction abuts against the next eccentric part, a pivot fulcrum is formed between the tail end of the second roller inner hole in the installation moving direction and the sleeved eccentric part on the abutting side, the fulcrum is used as a rotating shaft, the tail end of the second roller inner hole in the installation moving direction and the tail end of the eccentric part excircle in the installation moving direction on the opposite side in the radial direction do not interfere with each other structurally in rotation, the distance H1 between two adjacent eccentric parts can be enabled not to be larger than the thickness H2 of the second roller, the requirement that the roller is installed from one end of a crankshaft can be met, the distance between the adjacent crankshaft eccentric parts can be shortened, and the efficiency of the multi-cylinder pump can be improved.
2. According to the rotor structure of the multi-cylinder pump, the tail end of the inner hole of the second roller in the mounting and moving direction is provided with the inner chamfer with the angle of 30-70 degrees, the projection length of the inner chamfer in the axial direction is H3, the tail end of the outer circle of the eccentric part in the mounting and moving direction is provided with the outer chamfer with the angle of 30-70 degrees, the projection length of the outer chamfer in the axial direction is H4, and H1+ H4 is not less than H2-H3. Therefore, when the distance H1 between two adjacent eccentric parts is not more than the thickness H2 of the second roller, smooth installation of the roller can still be guaranteed.
3. According to the rotor structure of the multi-cylinder pump, the angle range of the inner chamfer angle is 45-60 degrees, and the angle range of the outer chamfer angle is 45-60 degrees. This allows a better mounting effect.
4. The rotor structure of the multi-cylinder pump provided by the invention meets the requirements of H1+ H4, and H1+ H4 is more than or equal to 0.5H2 and less than or equal to 0.95H 2. This ensures smooth mounting of the roller to the crankshaft.
5. The rotor structure of the multi-cylinder pump provided by the invention meets the requirement of H2-2H3, and H2-2H3 which is more than or equal to 0.5H2 and less than or equal to 0.95H 2. This allows sufficient contact between the roller and the crankshaft, thereby making the mounting of the roller on the crankshaft more robust.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic partial cross-sectional view of a prior art rotor structure for a dual cylinder pump;
fig. 2 is a partial cross-sectional view schematically illustrating a rotor structure of a multi-cylinder pump in a state where second rollers are separated from a crankshaft, according to a first embodiment of the present invention;
FIG. 3 is a schematic view showing an installation state of a rotor structure of the multi-cylinder pump shown in FIG. 2;
FIG. 4 is a schematic view of another installation of the rotor structure of the multiple cylinder pump shown in FIG. 2;
FIG. 5 is a schematic view of another installation of the rotor structure of the multiple cylinder pump shown in FIG. 2;
FIG. 6 is a schematic view of another installation of the rotor structure of the multiple cylinder pump shown in FIG. 2;
FIG. 7 is a schematic view of another installation of the rotor structure of the multiple cylinder pump shown in FIG. 2;
description of reference numerals:
11-connecting section, 12-outer shaft section, 21-first eccentric section, 211-outer chamfer, 22-second eccentric section, 3-second roller, 31-inner chamfer, 10-middle section, 20-long axis, 30-short axis, 40-upper eccentric section, 50-lower eccentric section, 60-upper cylinder roller.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 2, the present embodiment provides a rotor structure of a multi-cylinder pump, including a crankshaft, a first roller, and at least one second roller 3.
The crankshaft is provided with a shaft body and eccentric parts with the number corresponding to the number of cylinder bodies, wherein the shaft body comprises a connecting section 11 for connecting two adjacent eccentric parts and two outer side shaft sections 12 respectively arranged on the back sides of the two eccentric parts on the outermost side of the crankshaft.
The first roller is adapted to be mounted on one of the two outermost eccentrics;
the second roller 3 is adapted to be mounted on the other corresponding eccentric portion;
the distance H1 between two adjacent eccentric parts is less than or equal to the thickness H2 of the second roller 3; in the state that the front end of the second roller 3 in the installation moving direction is abutted against the next eccentric part, a pivot fulcrum is formed between the tail end of the inner hole of the second roller 3 in the installation moving direction and the sleeved eccentric part on the abutted side, and the tail end of the inner hole of the second roller 3 in the installation moving direction and the tail end of the excircle of the eccentric part in the installation moving direction on the opposite side in the radial direction do not interfere with each other structurally in rotation by taking the fulcrum as a rotating shaft.
In the embodiment, an inner chamfer 31 with an angle of 30-70 degrees is formed at the tail end of the inner hole of the second roller 3 in the mounting and moving direction, the projection length of the inner chamfer 31 in the axial direction is H3, an outer chamfer 211 with an angle of 30-70 degrees is formed at the tail end of the outer circle of the eccentric part in the mounting and moving direction, and the projection length of the outer chamfer 211 in the axial direction is H4, so that H1+ H4 is not less than H2-H3. In this way, when the distance H1 between two adjacent eccentric parts is not greater than the thickness H2 of the second roller 3, smooth installation of the roller can still be ensured. Specifically, as shown in FIG. 2, H1+ H4 ≧ X, which is H2-H3.
In order to obtain a better installation effect, the angle range of the inner chamfer 31 is preferably 45-60 degrees, and the angle range of the outer chamfer 211 is preferably 45-60 degrees. In the present embodiment, the inner chamfer 31 and the outer chamfer 211 are each 45 degrees. As an alternative embodiment, the inner chamfer 31 may be 30 degrees, 60 degrees, 70 degrees, or the like, and the outer chamfer 211 may be 30 degrees, 60 degrees, 70 degrees, or the like.
In order to ensure that the roller can be more smoothly installed on the crankshaft, H1+ H4 satisfies that 0.5H2 is less than or equal to H1+ H4 is less than or equal to 0.95H2 in the embodiment.
In the embodiment, H2-2H3 satisfies that H2-2H3 is not more than 0.5H2 and not more than 0.95H 2. This allows sufficient contact between the roller and the crankshaft, thereby making the mounting of the roller on the crankshaft more robust.
In order to obtain a better mounting effect, H1 in the present embodiment further satisfies 0.7H2 ≦ H1 ≦ 0.95H 2.
The rotor structure of the multi-cylinder pump in this embodiment is used for a refrigeration compressor, and it is preferable that the difference between H2-H3 and H1+ H4 satisfies 0. ltoreq. H1+ H4) - (H2-H3. ltoreq. 1mm, and 0.3 mm. ltoreq. H4. ltoreq.0.5 mm. The multi-cylinder pump rotor structure can also be used on other compressors or other equipment as an alternative embodiment.
In the present embodiment, the crankshaft includes two eccentric portions; the rotor structure of the multicylinder pump includes a second roller 3 correspondingly mounted on the eccentric portion on the rear side in the mounting direction, and a first roller mounted on the eccentric portion on the front side in the mounting direction. Wherein the eccentric portion on which the first roller is mounted is a first eccentric portion 21, and the eccentric portion on which the second roller 3 is mounted is a second eccentric portion 22. That is, the rotor structure of the multicylinder pump provided in the present embodiment is a rotor structure of a twin-cylinder pump. As an alternative embodiment, the crankshaft may include three or four eccentric portions, and the rotor structure of the multi-cylinder pump may include two or three second rollers 3.
The embodiment also provides a multi-cylinder pump, which comprises the rotor structure of the multi-cylinder pump and the cylinder body of the cylinder.
The embodiment also provides a multi-cylinder compressor which comprises the multi-cylinder pump. As an alternative embodiment, the multi-cylinder compressor can also be replaced by another device with a multi-cylinder pump.
During installation, as shown in FIG. 3, the second roller 3 firstly passes through the first eccentric part 21 in a state that the axis is parallel to the axis of the connecting section 11, and falls on the connecting section 11 between the first eccentric part 21 and the second eccentric part 22 (as shown in FIG. 4), at this time, because H1 is not less than H2, and H1+ H4 is not less than H2-H3, the roller can be accommodated between the first eccentric part 21 and the second eccentric part 22 by the outer chamfer 211 of the first eccentric part 21, at this time, the front end of the second roller 3 in the installation moving direction abuts against the second eccentric part 22, and a pivot fulcrum is formed between the tail end of the inner hole of the second roller 3 on the abutting side in the installation moving direction and the first eccentric part 21. Referring to fig. 5 and 6, the second roller 3 is rotated by using the fulcrum as a rotating shaft, such that one side of the second roller 3 abuts against the second eccentric portion 22 and the opposite side accommodates a portion of the second eccentric portion 22; as shown in fig. 7, the second roller 3 is restored to a state where the axis is parallel to the axis of the connecting end, at this time, the mounting through hole of the second roller 3 is opposite to the second eccentric portion 22, the second roller 3 is continuously moved toward the second eccentric portion 22 until the second roller 3 is completely mounted on the second eccentric portion 22, the mounting of the second roller 3 is completed, and then the first roller is sleeved on the first eccentric portion 21, the mounting of the first roller is completed, and thus, the mounting of the first roller and the second roller 3 on the crankshaft is completed.
This embodiment can insert both the second roller 3 and the first roller from one end of the first eccentric portion 21 of the crankshaft when the distance H1 between the first eccentric portion 21 and the second eccentric portion 22 is not greater than the thickness H2 of the second roller 3, which can shorten the distance between the adjacent eccentric portions of the crankshaft, thereby improving the efficiency of the multi-cylinder pump.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (12)
1. A rotor structure of a multicylinder pump, comprising:
the crankshaft is provided with a shaft body and eccentric parts with the number corresponding to the number of cylinder bodies, the shaft body comprises a connecting section (11) for connecting two adjacent eccentric parts and two outer side shaft sections (12), one of the outer side shaft sections (12) is arranged on one side, back to the connecting section, of one of the two eccentric parts on the outermost side of the crankshaft, and the other outer side shaft section (12) is arranged on one side, back to the connecting section, of the other eccentric part of the two eccentric parts on the outermost side of the crankshaft;
a first roller adapted to be mounted on one of the two outermost eccentric portions;
at least one second roller (3) adapted to be mounted on the other corresponding eccentric portion;
characterized in that the distance H1 between two adjacent eccentric portions is less than or equal to the thickness H2 of the second roller (3); and when the front end of the second roller (3) in the mounting and moving direction abuts against the next eccentric part, a pivot fulcrum is formed between the tail end of the inner hole of the second roller (3) in the mounting and moving direction and the sleeved eccentric part on the abutting side, and the tail end of the inner hole of the second roller (3) in the mounting and moving direction and the tail end of the excircle of the eccentric part in the mounting and moving direction do not interfere with each other structurally in rotation by taking the fulcrum as a rotating shaft on the opposite side in the radial direction.
2. The rotor structure of a multicylinder pump as recited in claim 1, wherein an inner chamfer (31) with an angle of 30-70 degrees is formed at the tail end of the inner hole of the second roller (3) in the mounting and moving direction, the projection length of the inner chamfer (31) in the axial direction is H3, an outer chamfer (211) with an angle of 30-70 degrees is formed at the tail end of the outer circle of the eccentric part in the mounting and moving direction, and the projection length of the outer chamfer (211) in the axial direction is H4, so that H1+ H4 is not less than H2-H3.
3. The rotor structure of a multicylinder pump as recited in claim 2, wherein said inner chamfer (31) has an angle ranging from 45 to 60 degrees, and said outer chamfer (211) has an angle ranging from 45 to 60 degrees.
4. The rotor structure of a multicylinder pump of claim 2, wherein H1+ H4 satisfies 0.5H2 ≦ H1+ H4 ≦ 0.95H 2.
5. A rotor structure of a multicylinder pump according to any one of claims 2-4, wherein H2-2H3 satisfies 0.5H 2. ltoreq.H 2-2H 3. ltoreq.0.95H 2.
6. The rotor structure of a multicylinder pump according to claim 2 or 3, wherein H1 satisfies 0.7H2 ≦ H1 ≦ 0.95H 2.
7. A rotor structure of a multicylinder pump according to any one of claims 2-4, wherein said multicylinder pump rotor structure is used on a refrigeration compressor and satisfies 0 ≦ (H1+ H4) - (H2-H3) ≦ 1 mm.
8. A rotor structure of a multicylinder pump according to any one of claims 2-4, wherein said multicylinder pump rotor structure is used on a refrigeration compressor and satisfies 0.3mm ≦ H4 ≦ 0.5 mm.
9. A rotor structure of a multicylinder pump according to any one of claims 1-4, wherein said crankshaft includes two said eccentric portions; the rotor structure of the multi-cylinder pump includes the second roller (3) correspondingly mounted on the eccentric portion on the rear side in the mounting direction, and the first roller mounted on the eccentric portion on the front side in the mounting direction.
10. A multiple cylinder pump comprising a rotor structure of a multiple cylinder pump according to any one of claims 1-9.
11. An apparatus having a multi-cylinder pump, characterized in that it comprises a multi-cylinder pump according to claim 10.
12. Device with multicylinder pump according to claim 11, characterized in that it is a multicylinder compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810857309.0A CN109139465B (en) | 2018-07-31 | 2018-07-31 | Rotor structure of multicylinder pump, multicylinder pump and device with multicylinder pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810857309.0A CN109139465B (en) | 2018-07-31 | 2018-07-31 | Rotor structure of multicylinder pump, multicylinder pump and device with multicylinder pump |
Publications (2)
| Publication Number | Publication Date |
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| CN109139465A CN109139465A (en) | 2019-01-04 |
| CN109139465B true CN109139465B (en) | 2020-09-04 |
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| CN201810857309.0A Active CN109139465B (en) | 2018-07-31 | 2018-07-31 | Rotor structure of multicylinder pump, multicylinder pump and device with multicylinder pump |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101688535B (en) * | 2007-08-28 | 2013-03-13 | 东芝开利株式会社 | Multicylinder rotary type compressor, and refrigerating cycle apparatus |
| JP2012036822A (en) * | 2010-08-06 | 2012-02-23 | Daikin Industries Ltd | Compressor |
| US10233929B2 (en) * | 2014-06-24 | 2019-03-19 | Panasonic Intellectual Property Management Co., Ltd. | Rotary compressor having two cylinders |
| CN204099201U (en) * | 2014-08-07 | 2015-01-14 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump body structure and duplex cylinder compressor |
| JP6664118B2 (en) * | 2016-02-26 | 2020-03-13 | パナソニックＩｐマネジメント株式会社 | 2-cylinder hermetic compressor |
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