WO2010070227A2 - Compresseur frigorifique à spirales - Google Patents
Compresseur frigorifique à spirales Download PDFInfo
- Publication number
- WO2010070227A2 WO2010070227A2 PCT/FR2009/052515 FR2009052515W WO2010070227A2 WO 2010070227 A2 WO2010070227 A2 WO 2010070227A2 FR 2009052515 W FR2009052515 W FR 2009052515W WO 2010070227 A2 WO2010070227 A2 WO 2010070227A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- housing
- compressor
- refrigerant
- compressor according
- return device
- Prior art date
Links
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
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
-
- 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
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/063—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents with coaxially-mounted members having continuously-changing circumferential spacing between them
-
- 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
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
-
- 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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
- F04C28/26—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
-
- 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
Definitions
- a scroll compressor comprises first and second volutes describing relative orbital movement, each volute having a plateau from which extends a spiral, the two spirals being engaged one inside the other and delimiting pairs of compression chambers of variable volume, the compression chambers having a volume which decreases progressively from the outside, where the intake of refrigerant gas, inwards.
- the refrigerant gas is compressed due to the reduction of the volume of the compression chambers and conveyed to the center of the first and second volutes.
- the compressed refrigerant gas exits centrally toward a recovery chamber through a discharge port in one of the first and second volutes.
- the injection and bypass valves are both disposed outside the compressor.
- the injection valve is disposed outside the compressor and the bypass valve is disposed in the suction stage.
- the surface of the plate of the fixed volute turned on the opposite side of the spirals comprises a housing in which is mounted a non-return device.
- the non-return device is movable between an open position allowing an injection of refrigerant gas into the compression chamber in which the passage opening opens, and a closed position preventing a refrigerant gas discharge from said compression chamber to the means. refrigerant gas injection.
- the present invention aims to remedy these disadvantages.
- the technical problem underlying the invention is therefore to provide a scroll compressor with a simple and economical structure, while allowing a simple and easy installation of a non-return device on one of the volutes of the compressor.
- the invention relates to a scroll compressor comprising a first and a second volute describing a relative orbital movement, each volute having a plate from which extends a spiral, the two spirals being engaged one in the other and delimiting at least two compression chambers of variable volume, characterized in that the compressor comprises:
- At least one housing formed in the surface of the plate of one of the first and second volutes facing the spirals, the housing opening into one of the compression chambers, - discharge means and / or fluid injection refrigerant coming into the housing,
- a non-return device mounted in the housing the non-return device being arranged to prevent the communication of the discharge means and / or refrigerant injection with the compression chamber in which the housing opens in a first closed position, and being arranged to allow the communication of the discharge means and / or refrigerant injection with the compression chamber in which the housing opens in a second open position.
- the machining of a housing arranged to receive a non-return device in the surface of the plate of one of the scrolls facing the spirals can be easily achieved, and is in no way hampered by the presence of a bell covering the fixed scroll or sealing elements at the discharge port.
- the compressor according to the invention allows simple and easy mounting of a non-return device on one of the volutes of the compressor.
- the non-return device comprises a valve seat member and a non-return valve movable between a closure position of the non-return device in which the check valve bears against the valve seat member and a open position of the non-return device in which the check valve is remote from the valve seat member.
- the non-return valve is an elastically deformable strip integral with the valve seat member.
- the housing defines a valve seat
- the non-return device comprises a non-return valve movable between a closed position of the non-return device in which the check valve bears against the valve seat and a open position of the non-return device in which the check valve is moved away from the valve seat.
- the compressor comprises a partial closure device mounted in the housing and arranged to partially close the latter, the closure device delimiting at least partly a refrigerant passage opening opening in one of the compression chambers , the orifice being arranged to put said compression chamber in communication with the discharge means and / or refrigerant injection when the non-return device is in its open position.
- the closure device delimiting at least partly a refrigerant passage opening opening in one of the compression chambers , the orifice being arranged to put said compression chamber in communication with the discharge means and / or refrigerant injection when the non-return device is in its open position.
- the closure device is mounted in the housing so that its surface facing the spirals is substantially aligned with the surface of the tray in which the housing is formed.
- the passage opening is dimensioned so that the spiral of the other of the first and second volutes prevents the communication of two compression chambers through the passage opening during the relative orbital movement of the two volutes.
- the passage opening has a section of elongate shape and a width substantially less than or equal to the thickness of the spiral of the other of the first and second volutes.
- the passage opening is partially delimited by the closure device and partially by the wall of the housing.
- the passage opening is entirely delimited by the closure device.
- the passage orifice has a circular shape and the opening of the latter opening into the compression chamber is achieved by removal of material from the surface of the insert facing the spirals and the circumference of the passage opening such that said opening has dimensions greater than those of the passage opening.
- the valve seat member is made of material with the closure device.
- the compressor comprises control means of the non-return device arranged to move the latter between its closed and open positions.
- control means are arranged to place the refrigerant discharge means in communication alternately with a high-pressure fluid supply circuit and a low-pressure fluid supply circuit, the anti-return device being moved to its position of closing when the refrigerant delivery means are put in communication with the high pressure fluid supply circuit, and in its open position when the refrigerant delivery means are put in communication with the supply circuit. low pressure fluid.
- control means are arranged to place the refrigerant injection means in communication with a refrigerant injection circuit, the non-return device being moved into its open position. when the means refrigerant injection are put into communication with the refrigerant injection circuit.
- the refrigerant discharge means comprise a discharge pipe whose one end opens into the housing and the other end opens into a refrigerant suction volume defined by the compressor.
- the refrigerant discharge means comprise a discharge pipe whose one end opens into the housing and the other end opens into a discharge opening in the tray. one of the first and second volutes.
- Figure 1 is a longitudinal sectional view of a first compressor.
- Figure 2 is a longitudinal sectional view, on an enlarged scale, of the fixed scroll of the compressor of Figure 1.
- Figures 3 and 4 are partial views in longitudinal section, on an enlarged scale, of a detail of the fixed scroll of the compressor of figure 1.
- Figure 5 is a view showing the passage opening in the tray of the fixed scroll.
- Figure 7 is a longitudinal sectional view, on an enlarged scale, of the fixed scroll of the compressor of Figure 6.
- Figures 8 and 9 are partial views in longitudinal section, on an enlarged scale, of a detail of the fixed scroll of the compressor of Figure 6.
- Figure 10 is a longitudinal sectional view, on an enlarged scale, of the fixed volute of a third compressor.
- Figures 11 and 12 are partial views in longitudinal section, on an enlarged scale, of a detail of the fixed scroll of the compressor of Figure 10.
- Figure 1 depicts a variable speed scroll compressor operating in a vertical position.
- the compressor according to the invention could occupy an inclined position, or a horizontal position, without its structure being significantly modified.
- the compressor shown in FIG. 1 comprises a sealed enclosure delimited by a shell 2 whose upper and lower ends are respectively closed by a cover 3 and a base 4.
- the assembly of this enclosure can be made in particular by means of weld seams.
- the shell 2 comprises a refrigerant gas inlet (not shown in Figure 1) opening into a suction volume to achieve the supply of refrigerant gas to the compressor.
- the intermediate portion of the compressor is occupied by a body 5 for mounting a compression stage 7 of the refrigerant gas.
- This compression stage 7 comprises a fixed volute 8 comprising a plate 9 from which extends a fixed spiral 10 facing downwards, and a mobile volute 11 having a plate 12 bearing against the body 5 and from which extends a spiral 13 turned upwards.
- the two spirals 10 and 13 of the two scrolls interpenetrate to provide compression chambers 14 of variable volume.
- the admission of the gas into the compression stage is made from the outside, the compression chambers 14 having a variable volume which decreases from the outside towards the inside, during the movement of the mobile volute 11 with respect to the fixed scroll 8, the compressed gas escaping in the center of the scrolls through a discharge opening 15 formed in the fixed scroll 8 towards a chamber 16 at high pressure from which it is discharged by a fitting (not shown on the figure).
- the compressor comprises a separator plate 40 covering the fixed scroll 8 and sealingly mounted thereon.
- the separating plate 40 defines two volumes, a low pressure suction volume located below it, and a high pressure discharge volume disposed above it.
- the compressor comprises an electric motor disposed in the suction volume.
- the electric motor comprises a stator 17 at the center of which is disposed a rotor 18.
- the rotor 18 is secured to a drive shaft 20 whose upper end is offset in the manner of a crankshaft. This upper part is engaged in a portion 21 in the form of a sleeve, which comprises the movable scroll 11.
- the drive shaft 20 drives the mobile scroll 11 in an orbital motion.
- the lower end of the drive shaft 20 drives an oil pump 22 feeding, from oil contained in a housing 23 delimited by the base 4, an oil supply conduit 24 formed in the central portion of the drive shaft, the supply duct 24 being off-axis and extends over a portion of the length of the drive shaft 20.
- the compressor also comprises a substantially cylindrical housing 25 formed in the lower surface of the plate 9 of the fixed scroll 8, that is to say the surface of the plate 9 facing the spirals 10, 13.
- the housing 25 opens into one of the compression chambers 14.
- the housing 25 has a maximum diameter substantially corresponding to the radial distance between two adjacent portions of the spiral 10 of the fixed scroll 8.
- the compressor further comprises a non-return device 26 mounted in the housing 25.
- the non-return device 26 comprises on the one hand a valve seat member 27 inserted in the housing 25 and delimiting a through opening 28, and on the other hand a check valve 29 movable between a closed position (shown in Figure 3) in which the check valve 29 bears against the valve seat member 27 and closes the passage opening 28, and an open position (shown in Figure 4) in which the check valve 29 is remote from the valve seat member 27 and releases the passage opening 28.
- the check valve 29 has a substantially circular shape.
- the closure member 31 delimits in part a refrigerant gas orifice 32 opening into one of the compression chambers 14 and communicating with the passage opening 28 delimited by the valve seat member 27.
- the passage opening 32 is dimensioned such that the spiral 13 of the mobile volute 11 prevents the communication of two compression chambers 14 through the passage opening 32 during the orbital movement of the moving volute. 11.
- the through-hole 32 has a section of elongate shape and a width that is substantially less than or equal to the thickness of the spiral 13 of the mobile volute 11.
- the through-hole 32 is partially delimited by the closure member 31 and partially by the wall of the housing 25.
- the passage opening 32 opens substantially along the wall of the spiral 10 of the fixed scroll 8.
- the compressor comprises a refrigerant gas discharge conduit 33 having a first end 34 opening into the housing 25 downstream of the check valve 29 with respect to the valve seat member 27, and a second end 35 opening into the volume of the valve seat 27. suction defined by the ferrule 2.
- the compressor comprises control means 37 of the non-return device arranged to move the non-return valve 29 between its closed and open positions according to whether or not the maximum capacity of the compressor is desired.
- the control means connect the discharge pipe 33 to the high-pressure fluid supply circuit 38.
- the check valve 29 is subjected, on its face opposite to the organ forming a valve seat 27, at the pressure of a high-pressure fluid such that the check valve 29 is held pressed against the valve seat member 27 and isolates the compression chamber 14 into which the passage opening 32 of the suction volume.
- the control means connect the discharge pipe 33 to the low-pressure fluid supply circuit 39.
- the check valve 29 is subjected, on its face opposite to the organ forming a valve seat 27, at the pressure of a low-pressure fluid so that the check valve 29 is raised and communicates the compression chamber 14 into which the passage opening 32 opens with the suction volume.
- a spring acting in a direction of opening or closing the valve can be associated with the latter.
- Figures 6 to 9 show a second embodiment of the invention.
- the compressor comprises two substantially cylindrical housings 25 formed in the lower surface of the platen 9 of the fixed volute 8.
- the compressor further comprises a non-return device 26 and a closure device 30 mounted in each housing 25.
- the valve seat member 27 of each non-return device 26 comes of material with the shutter member 31 of the shutter device 30 corresponding.
- the non-return valve 29 of each non-return device 26 consists of a leaf integral with the valve seat member 27 corresponding and elastically deformable between a closed position (shown in Figure 8) in which the valve 29 bears against the corresponding valve seat member 27 and closes the passage opening 28 delimited by the latter and an open position (shown in Figure 9) in which the valve bears against a retaining plate 45 integral with the corresponding valve seat member 27 and releases the passage opening 28 delimited by the latter.
- the abutment plate 45 of each non-return device 26 is screwed onto the corresponding valve seat member 27.
- the compressor comprises two refrigerant gas discharge conduits 33, each discharge pipe
- the compressor does not include control means of the non-return valve 29 of each non-return device 26.
- each non-return valve 29 is arranged to deform towards its open position only when the pressure in the compression chamber 14 into which the corresponding through orifice 32 opens is greater than the pressure in the discharge orifice. 15.
- valve 29 is held pressed against the valve seat member (as is shown in FIG. 8) and isolates the compression chamber 14 in which opens the corresponding through hole 32 of the discharge port 15 formed in the fixed volute 8. As a result, the compression ratio of the compressor is maintained at its maximum value.
- each non-return device 26 When the non-return valve 29 of each non-return device 26 is subjected, on its face facing the valve seat member, to a pressure greater than the pressure in the delivery port 15, the valve 29 deforms elastically towards its position. opening (as shown in Figure 9) and communicates the compression chamber 14 in which opens the corresponding through hole 32 with the discharge port 15 formed in the fixed volute 8. This results in a discharge to the discharge port 15 of a portion of the refrigerant gas compressed in the compression chambers 14 in which the through openings 32 open before this portion of the refrigerant gas reaches the center of the spirals 10, 13.
- 33 could include a first end opening into one of the housings 25 and a second end opening into the high pressure chamber 16.
- the compressor could comprise a single cartridge or two identical cartridges.
- FIGS. 10 to 12 show a third embodiment of the invention which differs from the first embodiment essentially in that the valve seat is delimited by the housing 25, and in that the compressor comprises an injection conduit of refrigerant gas 41 comprising a first end 42 opening into the housing 25 downstream of the non-return valve 29 relative to the closure member 31, and a second end 43 connected to a refrigerant gas injection circuit (not shown in FIG. figure).
- control means 137 of the non-return device are arranged on the one hand to put in communication the injection conduit 41 with the refrigerant gas injection circuit, and secondly to isolate the injection conduit 41 of the refrigerant gas injection circuit.
- the control means 137 isolate the injection conduit 41 to the refrigerant gas injection circuit.
- the non-return valve 29 is subjected, on its face facing the closure member 31, to the pressure of the refrigerant gas compressed in the compression chamber 14 into which the passage opening 32 opens so that the valve
- the non-return valve 29 is kept pressed onto its valve seat and isolates said compression chamber 14 from the injection conduit 41.
- a spring acting in a closing direction of the valve can be inserted between this valve. last and shutter member 31.
- control means 137 connect the injection duct 41 to the refrigerant gas injection circuit.
- the non-return valve 29 is subjected to the pressure of a high-pressure fluid on its face opposite to the closure member 31 so that the non-return valve 29 comes to press against the closure member 31 and communicates the compression chamber 14 in which the passage opening 32 opens with the injection conduit 41, which allows an injection of refrigerant gas into said compression chamber 14.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200980156918.2A CN102317630B (zh) | 2008-12-19 | 2009-12-14 | 涡旋型制冷器压缩机 |
US13/128,775 US8794940B2 (en) | 2008-12-19 | 2009-12-14 | Scroll-type refrigerator compressor |
DE112009003662T DE112009003662T5 (de) | 2008-12-19 | 2009-12-14 | Kühlschrank-Kompressor in Spiralbauart |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR08/58815 | 2008-12-19 | ||
FR0858815A FR2940373B1 (fr) | 2008-12-19 | 2008-12-19 | Compresseur frigorifique a spirales |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2010070227A2 true WO2010070227A2 (fr) | 2010-06-24 |
WO2010070227A3 WO2010070227A3 (fr) | 2010-09-30 |
Family
ID=40887879
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2009/052515 WO2010070227A2 (fr) | 2008-12-19 | 2009-12-14 | Compresseur frigorifique à spirales |
Country Status (6)
Country | Link |
---|---|
US (1) | US8794940B2 (fr) |
KR (1) | KR20110105383A (fr) |
CN (1) | CN102317630B (fr) |
DE (1) | DE112009003662T5 (fr) |
FR (1) | FR2940373B1 (fr) |
WO (1) | WO2010070227A2 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150004039A1 (en) * | 2013-06-28 | 2015-01-01 | Emerson Climate Technologies, Inc. | Capacity-modulated scroll compressor |
JP6186973B2 (ja) * | 2013-07-18 | 2017-08-30 | アイシン精機株式会社 | 冷媒圧縮機 |
TWM472176U (zh) * | 2013-11-07 | 2014-02-11 | Jia Huei Microsystem Refrigeration Co Ltd | 迴轉式壓縮機改良 |
CN114688031A (zh) * | 2020-12-29 | 2022-07-01 | 丹佛斯(天津)有限公司 | 压缩机和控制该压缩机的方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4475360A (en) | 1982-02-26 | 1984-10-09 | Hitachi, Ltd. | Refrigeration system incorporating scroll type compressor |
US7100386B2 (en) | 2003-03-17 | 2006-09-05 | Scroll Technologies | Economizer/by-pass port inserts to control port size |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5776287A (en) * | 1980-10-31 | 1982-05-13 | Hitachi Ltd | Scroll compressor |
JPS6248979A (ja) * | 1985-08-27 | 1987-03-03 | Hitachi Ltd | スクロ−ル圧縮機 |
JPS6270681A (ja) * | 1985-09-24 | 1987-04-01 | Hitachi Ltd | スクロ−ル流体機械 |
JPH02230995A (ja) * | 1989-03-02 | 1990-09-13 | Mitsubishi Heavy Ind Ltd | ヒートポンプ用圧縮機及びその運転方法 |
JPH05180182A (ja) * | 1992-01-07 | 1993-07-20 | Mitsubishi Electric Corp | 冷凍装置 |
JPH0566291U (ja) * | 1992-02-14 | 1993-09-03 | 株式会社東芝 | 圧縮機 |
JPH08144971A (ja) * | 1994-11-15 | 1996-06-04 | Nippon Soken Inc | スクロール型圧縮機および冷凍サイクル |
US5722257A (en) * | 1995-10-11 | 1998-03-03 | Denso Corporation | Compressor having refrigerant injection ports |
JPH10311286A (ja) * | 1997-05-12 | 1998-11-24 | Matsushita Electric Ind Co Ltd | 容量制御スクロール圧縮機 |
JP4033259B2 (ja) * | 2001-11-13 | 2008-01-16 | 三菱電機株式会社 | スクロール圧縮機 |
KR100547322B1 (ko) * | 2003-07-26 | 2006-01-26 | 엘지전자 주식회사 | 용량 조절식 스크롤 압축기 |
KR100664058B1 (ko) * | 2004-11-04 | 2007-01-03 | 엘지전자 주식회사 | 스크롤 압축기의 용량 가변장치 |
WO2007114531A1 (fr) * | 2006-03-31 | 2007-10-11 | Lg Electronics Inc. | Dispositif empêchant un vide de se former dans un compresseur à spirale |
US7674098B2 (en) * | 2006-11-07 | 2010-03-09 | Scroll Technologies | Scroll compressor with vapor injection and unloader port |
-
2008
- 2008-12-19 FR FR0858815A patent/FR2940373B1/fr active Active
-
2009
- 2009-12-14 WO PCT/FR2009/052515 patent/WO2010070227A2/fr active Application Filing
- 2009-12-14 KR KR1020117016490A patent/KR20110105383A/ko not_active Application Discontinuation
- 2009-12-14 US US13/128,775 patent/US8794940B2/en active Active
- 2009-12-14 DE DE112009003662T patent/DE112009003662T5/de not_active Withdrawn
- 2009-12-14 CN CN200980156918.2A patent/CN102317630B/zh not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4475360A (en) | 1982-02-26 | 1984-10-09 | Hitachi, Ltd. | Refrigeration system incorporating scroll type compressor |
US7100386B2 (en) | 2003-03-17 | 2006-09-05 | Scroll Technologies | Economizer/by-pass port inserts to control port size |
Also Published As
Publication number | Publication date |
---|---|
CN102317630A (zh) | 2012-01-11 |
FR2940373A1 (fr) | 2010-06-25 |
WO2010070227A3 (fr) | 2010-09-30 |
US20110318212A1 (en) | 2011-12-29 |
DE112009003662T5 (de) | 2012-08-02 |
KR20110105383A (ko) | 2011-09-26 |
FR2940373B1 (fr) | 2014-07-04 |
US8794940B2 (en) | 2014-08-05 |
CN102317630B (zh) | 2015-05-20 |
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