WO2013061879A1 - 多気筒回転式圧縮機 - Google Patents
多気筒回転式圧縮機 Download PDFInfo
- Publication number
- WO2013061879A1 WO2013061879A1 PCT/JP2012/077092 JP2012077092W WO2013061879A1 WO 2013061879 A1 WO2013061879 A1 WO 2013061879A1 JP 2012077092 W JP2012077092 W JP 2012077092W WO 2013061879 A1 WO2013061879 A1 WO 2013061879A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotary compressor
- oil
- partition plate
- compression
- cylinder rotary
- Prior art date
Links
- 230000006835 compression Effects 0.000 claims abstract description 81
- 238000007906 compression Methods 0.000 claims abstract description 81
- 238000005192 partition Methods 0.000 claims abstract description 49
- 230000013011 mating Effects 0.000 claims description 45
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 238000000638 solvent extraction Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 53
- 239000003507 refrigerant Substances 0.000 description 17
- 239000010721 machine oil Substances 0.000 description 10
- 230000002093 peripheral effect Effects 0.000 description 7
- 238000005057 refrigeration Methods 0.000 description 5
- 239000003566 sealing material Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000000926 separation method Methods 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
- 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
- F04C18/356—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 outer member
-
- 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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
-
- 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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/008—Hermetic pumps
-
- 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
- F04C29/02—Lubrication; Lubricant separation
- F04C29/028—Means for improving or restricting lubricant flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
- F01C21/104—Stators; Members defining the outer boundaries of the working chamber
- F01C21/108—Stators; Members defining the outer boundaries of the working chamber with an axial surface, e.g. side plates
Definitions
- the present invention relates to a multi-cylinder rotary compressor provided with a partition plate having oil holes.
- the compressor described in Patent Document 2 is a partition plate configured by combining two divided plates, and the two divided plates are bolted with a sealing material interposed between the mating surfaces of the two divided plates. It is characterized by fixing. According to this document, it is possible to suppress refrigerant leakage from the mating surfaces by interposing a sealing material between the two divided plates. Further, by fixing the two divided plates with bolts, it is possible to prevent the two components from being displaced due to vibration during operation or the like, and to open a gap in the mating surface.
- Japanese Utility Model Publication No. 58-167788 page 3, line 3, page 4, line 5, figure 3) Japanese Patent Laid-Open No. 54-121405 (page 2, lines 16 to 45, FIG. 2)
- the present invention has been made to solve such a problem, and an object of the present invention is to provide a multi-cylinder rotary compressor having a partition plate that can suppress refrigerant leakage from the mating surfaces of the split plates.
- the multi-cylinder rotary compressor according to the present invention is A plurality of adjacent compression chambers;
- a multi-cylinder rotary compressor that is divided into two divided plates, and includes a partition plate that presses and fixes the mating surfaces of the divided plates to each other and partitions adjacent compression chambers,
- the mating surface of at least one of the divided plates has a notch that forms an oil hole in the axial direction of the crankshaft of the compression mechanism,
- the oil hole communicates with an oil passage that penetrates the cylinder block of the compression mechanism in the axial direction of the crankshaft.
- the mating surface has a notch that forms an oil hole in the axial direction of the crankshaft of the compression mechanism, Since the oil hole communicates with an oil passage that penetrates the cylinder block of the compression mechanism in the axial direction of the crankshaft, an oil seal is formed between the mating surfaces, and even if a minute gap is generated between the mating surfaces, Leakage can be suppressed.
- 1 is a longitudinal sectional view of a multi-cylinder rotary compressor according to Embodiment 1 of the present invention.
- 1 is a cross-sectional view taken along line AA of a multi-cylinder rotary compressor according to Embodiment 1 of the present invention.
- It is a top view which shows the structure of the partition plate of the multicylinder rotary compressor which concerns on Embodiment 1 of this invention.
- It is a top view which shows the structure of the partition plate of the multicylinder rotary compressor which concerns on Embodiment 2 of this invention.
- It is the top view and side view which show the other structural example of the partition plate of the multicylinder rotary compressor which concerns on Embodiment 1 of this invention.
- It is a top view which shows the other structural example of the partition plate of the multicylinder rotary compressor which concerns on Embodiment 1 of this invention.
- FIG. Embodiment 1 is a longitudinal sectional view of a multi-cylinder rotary compressor 100 (hereinafter referred to as a compressor 100).
- FIG. 2 is a cross-sectional view taken along line AA of the compressor 100 shown in FIG.
- a two-cylinder rotary compressor for a refrigeration / air conditioner having two compression chambers will be described as an example.
- the motor 2 installed in the shell 1 is driven by energization from the glass terminal portion 7 to rotate the crankshaft 6 having the first eccentric portion 63a and the second eccentric portion 63b. Then, the refrigerant is sucked into the first compression chamber 21a and the second compression chamber 21b through the suction muffler 8 and the suction pipe 5. The refrigerant compressed with the rotation of the crankshaft 6 is discharged into the shell 1 from the hole 53 provided in the first discharge muffler 30a and discharged to the outside of the compressor 100 from the discharge pipe 4 at a constant pressure.
- the motor 2 installed in the shell 1 is driven by energization from the glass terminal portion 7 to rotate the crankshaft 6 having the first eccentric portion 63a and the second eccentric portion 63b. Then, the refrigerant is sucked into the first compression chamber 21a and the second compression chamber 21b through the suction muffler 8 and the suction pipe 5. The refrigerant compressed with the rotation of the crankshaft 6 is discharged into the
- the motor 2 Power to the motor 2 is supplied from the glass terminal portion 7 provided on the upper shell 1a.
- the motor 2 has a stator 2 a and a rotor 2 b, and the rotor 2 b is attached to the crankshaft 6.
- the rotational torque generated by the motor 2 is transmitted to the compression mechanism unit 3 through the crankshaft 6.
- the compression mechanism 3 includes a crankshaft 6, a first discharge muffler 30a, a first frame 31a, a first cylinder block 33a, a first spring 9, a first vane 10, a first roller 32a, a partition plate 35, and a second cylinder. It has a block 33b, a second frame 31b, a second discharge muffler 30b, a second spring, a second vane, and a second roller 32b. And in the through-hole provided in each of the 1st discharge muffler 30a, the 1st frame 31a, the 1st cylinder block 33a, the partition plate 35, the 2nd cylinder block 33b, the 2nd frame 31b, and the 2nd discharge muffler 30b. These parts constituting the compression mechanism section 3 are fixed by pressure by passing the short bolts 13 and the long bolts 14 and fastening the bolts.
- a space surrounded by the lower surface of the first frame 31a, the inner peripheral surface of the first cylinder block 33a, the upper surface of the partition plate 35, and the outer peripheral surface of the first roller 32a is the first compression chamber 21a.
- a space surrounded by the lower surface of the partition plate 35, the inner peripheral surface of the second cylinder block 33b, the upper surface of the second frame 31b, and the outer peripheral surface of the second roller 32b is the second compression chamber 21b.
- the partition plate 35 is disposed between the first cylinder block 33a and the second cylinder block 33b, and plays a role of partitioning the adjacent first compression chamber 21a and second compression chamber 21b.
- the first cylinder block 33a is provided with a slit from the inner peripheral surface to the radially outer side, and the first vane 10 biased by the first spring 9 is mounted therein.
- the tip of the first vane 10 abuts on the outer peripheral surface of the first roller 32a mounted around the first eccentric portion 63a, and partitions the first compression chamber 21a into the low pressure portion 23 and the high pressure portion 24.
- the pressure outside the compression mechanism 3 is higher than the inside of the compression chamber. Therefore, the back surface of the first vane 10 (on the side opposite to the first roller 32a) is connected to the outside of the compression mechanism unit 3 so that the first vane 10 is pressed against the first roller 32a by the differential pressure. Has been released by.
- the first spring 9 is assembled to the first cylinder block 33 a through the back pressure hole 11. Since the crankshaft 6 rotates while the first vane 10 is pressed against the first roller 32a, the first vane 10 moves back and forth in the slit in the expansion and contraction direction of the first spring 9.
- the internal structure and operation of the second cylinder block 33b are basically the same.
- the first eccentric portion 63a and the second eccentric portion 63b have a phase difference of 180 degrees, and the first vane 10 and the second vane are disposed without a phase difference with the partition plate 35 interposed therebetween.
- the compression chamber 21a and the second compression chamber 21b repeat the compression operation alternately, and the refrigerant compressed in the first compression chamber is discharged from the first discharge port 31c opened in the first frame 31a to the first discharge muffler.
- the refrigerant compressed in the second compression chamber 21b differs in that it is discharged to the second discharge muffler 30b from the second discharge port opened in the second frame 31b.
- FIG. 3 is a plan view of the partition plate 35 composed of two divided plates 42.
- the split plate 42 has a semicircular shaft cutout 45 and an oil hole cutout 48 on the mating surface 43 side, and the two split plates 42 cut out the intermediate portion 64 of the crankshaft 6 from the left and right.
- the partition plate 35 is formed by being assembled so as to be sandwiched between the portions 45.
- protrusions 47 At both ends of the mating surface 43 of the dividing plate 42, there are protrusions 47 for fixing the dividing plates 42 to each other, and the protrusions 47 are provided with fastening holes 44.
- the two divided plates 42 are fastened to the holes 44 through fastening bolts or the like.
- the rigidity of the dividing plate 42 is reduced by providing the oil hole notch 48 in the dividing plate 42, the position of the oil hole notch 48 is set on the mating surface 43, and a bolt is provided in the vicinity of the oil hole notch 48.
- the partition plate 35 constituted by two split plates 42 has a notch for oil holes. 48 can be provided.
- the compression mechanism 3 is assembled even if the diameter of the shaft through-hole 50 formed by the two opposed shaft notches 45 is smaller than the diameter of the first eccentric portion 63a and the second eccentric portion 63b of the crankshaft 6. It becomes possible. Further, the oil hole notch 48 forms the oil hole 51 by combining the two divided plates 42.
- the first frame body 31a, the first cylinder block 33a, the second frame body 31b, and the second cylinder block 33b also have holes penetrating in the axial direction of the crankshaft 6 at the same position, and these holes communicate vertically. Thus, the oil passages 52a and 52b are configured.
- the compressed refrigerant compressed in the second compression chamber 21b is discharged to the second discharge muffler 30b through the second discharge port in a state including refrigeration oil, and the oil passage 52b, the oil hole 51, and the oil passage. It flows to the first discharge muffler 30a through 52a, and is discharged into the shell 1 from the hole 53 provided in the first discharge muffler 30a.
- the split plate 42 is provided with a flat surface for fixing bolts and holes 44 near both ends of the mating surface 43, and has a structure in which the two split plates 42 are fixed to each other with bolts or the like.
- the partition plate 35 and the compression mechanism unit 3 can be assembled without a large gap. Accordingly, the two divided plates 42 do not shift due to vibrations or the like during operation of the compressor 100, and it is possible to prevent a large gap from being generated on the mating surface 43.
- the range of the first vane 10 and the second vane on the edge of the mating surface 43 is such that the mating surfaces 43 of the two split plates 42 are parallel to the moving direction of both vanes (FIG. 3, vane).
- the partition plate 35 is assembled in such a positional relationship as to slide in the sliding range 49).
- the refrigerating machine oil supplied to both vanes from the back pressure hole 11 is supplied along with the movement of both vanes.
- An oil seal is formed between the surfaces 43.
- the refrigeration oil can be supplied via the oil passage 52 b and the oil hole 51 on the mating surface on the side where both vanes are not present (the crank angle direction of 180 °).
- the oil hole 51 high-pressure refrigerant and refrigerating machine oil are mixed, and the oil hole 51 is provided on the mating surface 43. Therefore, when a minute gap is generated on the mating surface 43. Refrigerating machine oil can be automatically supplied to the gap by the differential pressure.
- the refrigerating machine oil can be permeated into the mating surface 43 over the entire thickness of the partition plate 35. Further, a notch is provided in the partition plate, and the distance from the oil hole 51 (oil hole notch 48) to the compression chamber 21 is made smaller than the plate thickness of the partition plate 35, so that a minute gap generated in the mating surface 43 is simply oiled.
- the minute gaps on the mating surfaces can have various shapes depending on the processing and assembly of the partition plate.
- the gap communicates between the two compression chambers of the first compression chamber 21a and the second compression chamber 21b.
- the edge of the mating surface is chipped or is a minute gap that is rounded, the inside of the compression chamber and the outside of the compression mechanism unit 3 are communicated with each other.
- the length of the fine gap to be sealed differs from the pressure difference applied to the fine gap, and these gaps can be formed in combination.
- the pressure difference between the outside and the compression chamber is used to make the gap.
- Refrigerator oil will be supplied.
- the distance from the outside of the compression mechanism section to the compression chamber is larger than the distance (plate thickness) between the two compression chambers of the first compression chamber and the second compression chamber, the distance of the oil flow passage to the gap to be sealed.
- the resistance for oil supply is large because the oil is long, and even if the gap between the compression chamber generated at the edge of the mating surface and the compression mechanism portion can be sealed, the two compression chambers between the first compression chamber and the second compression chamber There may be a case where sufficient oil cannot be supplied to the gap and the two compression chambers of the first compression chamber and the second compression chamber cannot be sealed.
- the oil hole 51 at a position where the distance from the oil hole 51 to the compression chamber 21 is smaller than the plate thickness of the partition plate 35 as in the present invention, two of the first compression chamber 21a and the second compression chamber 21b are provided. In both cases of communication between the two compression chambers and communication between the inside of the compression chamber 21 and the outside of the compression mechanism section 3, the fine gap can be reliably sealed.
- FIG. 4 is a plan view of a partition plate 235 composed of the split plate 42 and the split plate 42b.
- the oil hole notch 48 is provided only in the dividing plate 42 and is not provided in the dividing plate 42b. Even if the oil hole notches 48 are not provided in both of the divided plates, the same effect as in the first embodiment can be obtained, and the processing cost of the divided plate 42b can be reduced.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201280047495.2A CN103857913B (zh) | 2011-10-24 | 2012-10-19 | 多气缸旋转式压缩机 |
IN2690CHN2014 IN2014CN02690A (cs) | 2011-10-24 | 2012-10-19 | |
KR1020147010527A KR101531803B1 (ko) | 2011-10-24 | 2012-10-19 | 다기통 회전식 압축기 |
JP2013540750A JP5679384B2 (ja) | 2011-10-24 | 2012-10-19 | 多気筒回転式圧縮機 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011-232872 | 2011-10-24 | ||
JP2011232872 | 2011-10-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013061879A1 true WO2013061879A1 (ja) | 2013-05-02 |
Family
ID=48167711
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/077092 WO2013061879A1 (ja) | 2011-10-24 | 2012-10-19 | 多気筒回転式圧縮機 |
Country Status (6)
Country | Link |
---|---|
JP (1) | JP5679384B2 (cs) |
KR (1) | KR101531803B1 (cs) |
CN (1) | CN103857913B (cs) |
CZ (1) | CZ305951B6 (cs) |
IN (1) | IN2014CN02690A (cs) |
WO (1) | WO2013061879A1 (cs) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170335848A1 (en) * | 2014-12-19 | 2017-11-23 | Fujitsu General Limited | Rotary compressor |
US10563655B2 (en) | 2016-11-14 | 2020-02-18 | Fujitsu General Limited | Rotary compressor for compressing refrigerant using cylinder |
WO2022144593A1 (en) * | 2021-01-04 | 2022-07-07 | Siam Compressor Industry Co., Ltd. | A compressor |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104389788A (zh) * | 2014-09-22 | 2015-03-04 | 广东美芝制冷设备有限公司 | 用于多缸旋转式压缩机的压缩机构和多缸旋转式压缩机 |
JPWO2016151769A1 (ja) * | 2015-03-24 | 2017-09-14 | 三菱電機株式会社 | 回転式密閉型圧縮機 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58167788U (ja) * | 1982-05-06 | 1983-11-09 | 三菱電機株式会社 | 多気筒回転式圧縮機 |
JPS59136595A (ja) * | 1983-01-26 | 1984-08-06 | Mitsubishi Electric Corp | 多気筒回転式圧縮機 |
JPS611687U (ja) * | 1984-06-11 | 1986-01-08 | 三菱電機株式会社 | 多気筒回転式圧縮機 |
JPS6212790U (cs) * | 1985-07-06 | 1987-01-26 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54121405A (en) * | 1978-03-13 | 1979-09-20 | Sanyo Electric Co Ltd | Rotary compressor |
JPS58167788A (ja) * | 1982-03-30 | 1983-10-04 | Asahi Glass Co Ltd | 高耐久性低水素過電圧陰極及びその製法 |
US6799956B1 (en) * | 2003-04-15 | 2004-10-05 | Tecumseh Products Company | Rotary compressor having two-piece separator plate |
JP5683384B2 (ja) * | 2011-06-02 | 2015-03-11 | 三菱電機株式会社 | 多気筒回転式圧縮機 |
-
2012
- 2012-10-19 IN IN2690CHN2014 patent/IN2014CN02690A/en unknown
- 2012-10-19 KR KR1020147010527A patent/KR101531803B1/ko active Active
- 2012-10-19 JP JP2013540750A patent/JP5679384B2/ja active Active
- 2012-10-19 WO PCT/JP2012/077092 patent/WO2013061879A1/ja active Application Filing
- 2012-10-19 CZ CZ2014-104A patent/CZ305951B6/cs unknown
- 2012-10-19 CN CN201280047495.2A patent/CN103857913B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58167788U (ja) * | 1982-05-06 | 1983-11-09 | 三菱電機株式会社 | 多気筒回転式圧縮機 |
JPS59136595A (ja) * | 1983-01-26 | 1984-08-06 | Mitsubishi Electric Corp | 多気筒回転式圧縮機 |
JPS611687U (ja) * | 1984-06-11 | 1986-01-08 | 三菱電機株式会社 | 多気筒回転式圧縮機 |
JPS6212790U (cs) * | 1985-07-06 | 1987-01-26 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170335848A1 (en) * | 2014-12-19 | 2017-11-23 | Fujitsu General Limited | Rotary compressor |
US10458408B2 (en) * | 2014-12-19 | 2019-10-29 | Fujitsu General Limited | Rotary compressor having communication path hole overlap with discharge chamber concave portion |
US10563655B2 (en) | 2016-11-14 | 2020-02-18 | Fujitsu General Limited | Rotary compressor for compressing refrigerant using cylinder |
WO2022144593A1 (en) * | 2021-01-04 | 2022-07-07 | Siam Compressor Industry Co., Ltd. | A compressor |
Also Published As
Publication number | Publication date |
---|---|
CZ2014104A3 (cs) | 2014-07-30 |
JPWO2013061879A1 (ja) | 2015-04-02 |
CZ305951B6 (cs) | 2016-05-18 |
CN103857913B (zh) | 2016-06-01 |
CN103857913A (zh) | 2014-06-11 |
JP5679384B2 (ja) | 2015-03-04 |
KR20140065457A (ko) | 2014-05-29 |
KR101531803B1 (ko) | 2015-06-25 |
IN2014CN02690A (cs) | 2015-07-31 |
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