EP1944562B1 - Air conditioner - Google Patents

Air conditioner Download PDF

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Publication number
EP1944562B1
EP1944562B1 EP06798039.1A EP06798039A EP1944562B1 EP 1944562 B1 EP1944562 B1 EP 1944562B1 EP 06798039 A EP06798039 A EP 06798039A EP 1944562 B1 EP1944562 B1 EP 1944562B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
refrigerant
pressure
low
pressure refrigerant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP06798039.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1944562A1 (en
EP1944562A4 (en
Inventor
Takayuki Setoguchi
Makoto Kojima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daikin Industries Ltd filed Critical Daikin Industries Ltd
Publication of EP1944562A1 publication Critical patent/EP1944562A1/en
Publication of EP1944562A4 publication Critical patent/EP1944562A4/en
Application granted granted Critical
Publication of EP1944562B1 publication Critical patent/EP1944562B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0008—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium
    • F28D7/0016—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium the conduits for one medium or the conduits for both media being bent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/106—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve

Definitions

  • the present invention relates to an air conditioning apparatus that uses a supercooling heat exchanger.
  • FIG. 4 shows a configuration of an air conditioning apparatus that uses a conventional supercooling heat exchanger.
  • a compressor 1 a four-way switching valve 2, an outdoor-side heat exchanger 3 that functions as a condenser during the cooling operation and as an evaporator during the heating operation, a heating expansion valve 4, a receiver 5, a cooling expansion valve 6, an indoor-side heat exchanger 8 that functions as an evaporator during the cooling operation and as a condenser during the heating operation, and other components are connected sequentially via the four-way switching valve 2, thereby constituting a refrigerating cycle for air conditioning as is shown in the drawing.
  • the switching operation of the four-way switching valve 2 allows a refrigerant to be reversibly circulated in the direction shown by solid arrows in the drawing during the cooling operation, and in the direction shown by dashed arrows in the drawing during the heating operation, thereby resulting in cooling and heating, respectively.
  • the outdoor-side heat exchanger 3 and the indoor-side heat exchanger 8 are both configured to include numerous refrigerant paths. Therefore, even if the capacity of the flow divider portion to distribute the refrigerant is improved to a maximum, it is difficult to distribute the refrigerant evenly throughout the refrigerant paths.
  • the amount of pressure reduction in the heating expansion valve 4 or cooling expansion valve 6 is appropriately set so that the refrigerant of the exit side of the outdoor-side heat exchanger 3 or the indoor-side heat exchanger 8 is in appropriately humidified condition.
  • maximum performance as the evaporator can be guaranteed even if, for example, the refrigerant drifts into the outdoor-side heat exchanger 3 or the indoor-side heat exchanger 8, and therefore the evaporator can be made as compact as possible.
  • the performance of the evaporator can be further improved by removing the refrigerant supercooling of the exit side of the condenser, increasing the difference in enthalpy of the evaporator side to reduce circulating volume, and reducing the pressure loss on the evaporator side.
  • This is accomplished by providing a liquid-gas heat exchanger 13 having a double pipe structure, composed of a low-pressure refrigerant suction pipe 14 as an inner pipe and a high-pressure liquid refrigerant pipe 15 as an outer pipe, as a supercooling heat exchanger.
  • liquid-gas heat exchanger 13 e.g., the flow rate of the refrigerant, the length of the double pipes, the inside diameter of the outer pipe, and the outside diameter of the inner pipe are set in a predetermined manner appropriately.
  • the liquid-gas heat exchanger 13 As the liquid-gas heat exchanger 13 is provided in this manner, the refrigerant of the exit side of the evaporator is superheated, backflow into the compressor 1 can be prevented, the refrigerant of the exit side of the condenser is supercooled, and the difference in enthalpy of the evaporator side can be increased to reduce circulating volume. Therefore, the pressure loss can also be reduced, and the evaporator 8 (or the evaporator 3) can be made even more compact (see JP-A-5-332641 (Specification pg. 1-5, FIGS. 1-5 ) as an example).
  • JP-A-06-213518 An air conditioner having the features defined in the preamble of claim 1 is known from JP-A-06-213518 .
  • JP-A-06-213518 further suggests to use a control and corresponding valve to achieve that the flow of liquid refrigerant through the high-pressure liquid refrigerant pipe is either directed concurrently with the flow of the low-pressure refrigerant and the low-pressure refrigerant suction pipe during cooling operation and countercurrently during heating operation.
  • a supercooling heat exchanger in which heat is exchanged between a high-pressure refrigerant and a low-pressure refrigerant as described above has problems in that since the refrigerant flows in opposite directions during cooling and heating, the flows are parallel in either of the operating modes, and heat exchange is less efficient. For example, in the case shown in FIG. 4 , the flows are countercurrent to each other during cooling and are parallel to each other during heating, causing heat exchange to be less efficient.
  • the present invention was designed in order to resolve such problems, and an object thereof is to provide an air conditioning apparatus comprising a supercooling heat exchanger for exchanging heat between a low-pressure refrigerant and a high-pressure refrigerant, wherein the supercooling heat exchanger is divided into a first heat exchanger and a second heat exchanger, either one of these heat exchangers is disposed so that the high-pressure refrigerant and the low-pressure refrigerant flow countercurrent to each other, and the other heat exchanger is disposed so that the high-pressure refrigerant and the low-pressure refrigerant flow parallel to each other, whereby the above-described problems with conventional practice are appropriately resolved.
  • the present invention suggests an air conditioning apparatus having the features of claim 1. Embodiments are named in the dependent claims.
  • the supercooling heat exchanger 13 for exchanging heat between a high-pressure refrigerant and a low-pressure refrigerant as previously described has problems in that since the refrigerants flow in opposite directions during cooling and heating, the flows are parallel in either of the operating modes, and heat exchange is less efficient.
  • the supercooling heat exchanger 13 is divided into two heat exchangers, i.e., the first heat exchanger 13A and the second heat exchanger 13B, either the first heat exchanger 13A or the second heat exchanger 13B is disposed so that the high-pressure refrigerant and the low-pressure refrigerant flow countercurrent to each other, and the other heat exchanger, i.e., either the second heat exchanger 13B or the first heat exchanger 13A, is disposed so that the high-pressure refrigerant and the low-pressure refrigerant flow parallel to each other, whereby the supercooling heat exchanger 13 can maintain its heat exchange performance without variation even if the direction of refrigerant flow changes during cooling or heating.
  • the capacity of the heat exchanger itself does not need to be increased, and the supercooling heat exchangers 13A, 13B can be made as small as possible.
  • first and second supercooling heat exchangers 13A, 13B both have a double-pipe structure in which the high-pressure liquid refrigerant pipe 15 is fitted coaxially over the low-pressure refrigerant suction pipe 14, the structures of the supercooling heat exchangers 13A, 13B themselves are simplified.
  • the supercooling heat exchanger can maintain high heat exchange performance even when the flows of the refrigerants change direction during cooling and heating.
  • the evaporator can be made more compact.
  • the supercooling heat exchanger itself can be made as small as possible.
  • Compressor 2 Four-way switching valve 3 Outdoor-side heat exchanger 4, 6 Expansion valves 5 Receiver 8 Indoor-side heat exchanger 13A First heat exchanger 13B Second heat exchanger 14 Low-pressure refrigerant suction pipe 15 High-pressure liquid refrigerant pipe 16 Muffler
  • FIGS. 1 and 2 of the attached drawings show the configuration of the entirety and relevant parts of the refrigerant circuits in an air conditioning apparatus according to a preferred embodiment of the present invention.
  • a compressor 1, a four-way switching valve 2, an outdoor-side heat exchanger 3 that functions as a condenser during the cooling operation and as an evaporator during the heating operation, a heating expansion valve 4, a receiver 5, a cooling expansion valve 6, an indoor-side heat exchanger 8 that functions as an evaporator during the cooling operation and as a condenser during the heating operation, and other components are connected sequentially via the four-way switching valve 2, thereby constituting a refrigerating cycle for air conditioning as shown in the drawing.
  • the switching operation of the four-way switching valve 2 allows refrigerant to be reversibly circulated in the direction shown by solid arrows in the diagram during the cooling operation, and in the direction shown by dashed arrows in the diagram during the heating operation, thereby resulting in cooling and heating, respectively.
  • a liquid-gas heat exchanger 13 is provided in this embodiment as well as the case in FIG. 4 described previously.
  • This liquid-gas heat exchanger 13 comprises a low-pressure refrigerant suction pipe 14 and a high-pressure liquid refrigerant pipe 15, and is used as a supercooling heat exchanger for exchanging heat between low-pressure refrigerant and high-pressure refrigerant.
  • liquid-gas heat exchanger 13 As the liquid-gas heat exchanger 13 is provided in this manner, refrigerant of the exit side of the evaporator is superheated, backflow into the compressor 1 can be prevented, the refrigerant of the exit side of the condenser is supercooled, and the difference in enthalpy of the evaporator side can be increased to reduce refrigerant circulating volume, as was described previously. Therefore, pressure loss can also be reduced, and the evaporator (the indoor-side heat exchanger 8 during cooling or the outdoor-side heat exchanger 3 during heating) can be made as compact as possible.
  • the liquid-gas heat exchanger 13 is divided into two liquid-gas heat exchangers, i.e., a first liquid-gas heat exchanger 13A and a second liquid-gas heat exchanger 13B in which refrigerants flow in mutually opposite directions.
  • the first heat exchanger 13A may, for example, be disposed so that the high-pressure refrigerant and low-pressure refrigerant flow countercurrent to each other, and the second heat exchanger 13B may be disposed so that the high-pressure refrigerant and low-pressure refrigerant flow parallel to each other.
  • the liquid-gas heat exchanger 13 can maintain its performance without variation as shown in the diagrams, even when the refrigerant flow changes direction during cooling and heating.
  • the refrigerant of the exit side of the condenser is supercooled without variation during heating, and the difference in enthalpy of the evaporator side can be increased to reduce the circulating volume.
  • first and second liquid-gas heat exchangers 13A, 13B are both configured so that the high-pressure liquid refrigerant pipe 15 from the exit side of the condenser that is smaller in diameter than the low-pressure refrigerant suction pipe 14 is wound in a helical structure in mutually opposite directions, for example, as shown in detail in FIG. 2 , around the external periphery of the low-pressure refrigerant suction pipe 14.
  • the existing low-pressure refrigerant suction pipe 14 leads from the indoor-side heat exchanger (evaporator) 8 during cooling or from the outdoor-side heat exchanger (evaporator) 3 during heating back to the refrigerant suction inlet in the compressor 1 via the four-way switching valve 2. Therefore, the supercooling heat exchanger 13 itself can have a small capacity and can be made as small in size as possible.
  • the improvement in supercooling heat exchange efficiency is effective in contributing to making the evaporators themselves smaller and more compact.
  • winding the high-pressure liquid refrigerant pipe 15 around the existing low-pressure refrigerant suction pipe 14 as shown in FIG. 2 makes it possible to inhibit increases in suctioned gas pressure loss, and to prevent the COP from decreasing.
  • the reference numeral 16 in FIG. 2 denotes a muffler for gas refrigerant in the low-pressure refrigerant suction pipe 14.
  • the divided first and second heat exchangers 13A, 13B have a structure in which a high-pressure liquid refrigerant pipe 15 having a small diameter is helically wound around an existing low-pressure refrigerant suction pipe 14 that goes from the four-way switching valve 2 to the refrigerant suction inlet of the compressor 1, as shown in FIG. 2 .
  • a high-pressure liquid refrigerant pipe 15 having a small diameter is helically wound around an existing low-pressure refrigerant suction pipe 14 that goes from the four-way switching valve 2 to the refrigerant suction inlet of the compressor 1, as shown in FIG. 2 .
  • FIG. 1 In another possible configuration, as shown in FIG.
  • the first and second heat exchangers 13A, 13B have a double-pipe structure in which a high-pressure liquid refrigerant pipe 15 larger in diameter than the low-pressure refrigerant suction pipe 14 is fitted as a coaxial structure around the external periphery of the low-pressure refrigerant suction pipe 14, and these pipes are disposed so that the refrigerant flows in mutually opposite directions.
  • first and second heat exchangers 13A, 13B for supercooling have a double-pipe structure in which the high-pressure liquid refrigerant pipe 15 is fitted as a coaxial structure around the low-pressure refrigerant suction pipe 14, the structure of the supercooling heat exchanger itself is simplified.
  • the present invention can be widely utilized within the field of air conditioning apparatuses that use supercooling heat exchangers.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP06798039.1A 2005-09-22 2006-09-15 Air conditioner Not-in-force EP1944562B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005275493A JP3982545B2 (ja) 2005-09-22 2005-09-22 空気調和装置
PCT/JP2006/318376 WO2007034745A1 (ja) 2005-09-22 2006-09-15 空気調和装置

Publications (3)

Publication Number Publication Date
EP1944562A1 EP1944562A1 (en) 2008-07-16
EP1944562A4 EP1944562A4 (en) 2011-03-23
EP1944562B1 true EP1944562B1 (en) 2013-04-17

Family

ID=37888790

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06798039.1A Not-in-force EP1944562B1 (en) 2005-09-22 2006-09-15 Air conditioner

Country Status (7)

Country Link
US (1) US20090282861A1 (ko)
EP (1) EP1944562B1 (ko)
JP (1) JP3982545B2 (ko)
KR (1) KR100905995B1 (ko)
CN (1) CN101268312B (ko)
AU (1) AU2006293191B2 (ko)
WO (1) WO2007034745A1 (ko)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008304078A (ja) * 2007-06-05 2008-12-18 Denso Corp 冷凍サイクル装置
US8291719B2 (en) * 2007-10-09 2012-10-23 Be Aerospace, Inc. Thermal control system and method
JP2009115415A (ja) * 2007-11-08 2009-05-28 Calsonic Kansei Corp 超臨界冷凍サイクル
JP4947043B2 (ja) * 2008-07-14 2012-06-06 ダイキン工業株式会社 空気調和装置の室外機およびその製造方法
DK176868B1 (da) * 2008-09-16 2010-02-01 Lars Christian Wulf Zimmermann Symmetrisk kølemiddelregulator for oversvømmet multikanalfordamper
ATE554643T1 (de) * 2009-08-05 2012-05-15 Abb Research Ltd Verdampfer und kühlkreis
CN102597658B (zh) * 2009-10-27 2014-10-22 三菱电机株式会社 热泵
JP5762427B2 (ja) * 2010-10-12 2015-08-12 三菱電機株式会社 空気調和装置
JP2012097957A (ja) * 2010-11-02 2012-05-24 Showa Denko Kk 中間熱交換器
CN102095271A (zh) * 2011-03-01 2011-06-15 四川长虹空调有限公司 热泵空调器
DE102012204404B4 (de) * 2011-03-25 2022-09-08 Denso Corporation Wärmeaustauschsystem und Fahrzeugkältekreislaufsystem
JP5938821B2 (ja) * 2011-12-12 2016-06-22 Ｅ・Ｔ・Ｅ株式会社 冷凍装置
WO2014036835A1 (zh) * 2012-09-06 2014-03-13 江苏天舒电器有限公司 带热利用平衡处理器的热泵热水机及其热利用平衡处理器
CN103807936B (zh) * 2012-11-08 2018-06-26 杭州三花研究院有限公司 一种热泵空调***
WO2014200476A1 (en) * 2013-06-12 2014-12-18 Danfoss Turbocor Compressors B.V. Compressor with rotor cooling passageway
JP2015034671A (ja) * 2013-08-09 2015-02-19 株式会社アタゴ製作所 ヒートポンプ式給湯機の熱交換器
CA2921999C (en) 2013-09-13 2023-03-21 Genentech, Inc. Methods and compositions comprising an anti-il13 antibody and residual hamster phospholipase b-like 2
CN105928241B (zh) * 2016-06-01 2018-07-17 唐玉敏 一种换热***多级混联置换模块
CN105928398A (zh) * 2016-06-01 2016-09-07 唐玉敏 一种换热***多级并联置换模块
CN105928397B (zh) * 2016-06-01 2018-03-20 唐玉敏 一种多级混联置换换热***
CN105928240B (zh) * 2016-06-01 2019-04-12 唐玉敏 一种换热***
CN105928267B (zh) * 2016-06-01 2018-10-30 唐玉敏 一种多级并联置换换热***
CN105928242B (zh) * 2016-06-01 2018-07-20 唐玉敏 一种换热***多级串联置换模块
CN105928231B (zh) * 2016-06-01 2018-10-09 唐玉敏 一种多级串联置换换热***
CN106016860B (zh) * 2016-06-01 2018-10-09 唐玉敏 一种换热***置换模块
SE542346C2 (en) 2017-05-22 2020-04-14 Swep Int Ab Reversible refrigeration system
SE544732C2 (en) * 2017-05-22 2022-10-25 Swep Int Ab A reversible refrigeration system
KR20190055614A (ko) * 2017-11-15 2019-05-23 엘지전자 주식회사 판형 열교환기 및 이를 포함하는 공기 조화기
AU2017442329B2 (en) * 2017-12-06 2021-07-15 Mitsubishi Electric Corporation Heat exchanger, refrigeration cycle apparatus and method of manufacturing heat exchanger
CN108302839A (zh) * 2017-12-29 2018-07-20 青岛海尔空调器有限总公司 空调器***
WO2020202553A1 (ja) * 2019-04-05 2020-10-08 三菱電機株式会社 冷凍サイクル装置
US20220214081A1 (en) * 2019-07-22 2022-07-07 Mitsubishi Electric Corporation Air conditioning apparatus and outdoor unit

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58135667U (ja) * 1982-03-08 1983-09-12 松下冷機株式会社 冷凍サイクル
DE3505789A1 (de) * 1985-02-20 1986-08-21 Grote, Paul, 2901 Friedrichsfehn Spiralwaermetauscher
JP3336628B2 (ja) 1992-05-29 2002-10-21 ダイキン工業株式会社 冷凍装置
JPH06213518A (ja) 1993-01-13 1994-08-02 Hitachi Ltd 混合冷媒用ヒートポンプ式エアコン
JPH1054616A (ja) * 1996-08-14 1998-02-24 Daikin Ind Ltd 空気調和機
TW568254U (en) * 1997-01-06 2003-12-21 Mitsubishi Electric Corp Refrigerant circulating apparatus
JPH11325655A (ja) * 1998-05-14 1999-11-26 Matsushita Seiko Co Ltd 消音器および空気調和機
JP2001056188A (ja) * 1999-06-10 2001-02-27 Sanden Corp 蒸気圧縮式冷凍サイクル等に使用される熱交換器
KR100544323B1 (ko) * 2000-04-28 2006-01-23 다이킨 고교 가부시키가이샤 냉매 및 기름 회수운전방법, 및 냉매 및 기름의회수제어장치
JP3811116B2 (ja) * 2001-10-19 2006-08-16 松下電器産業株式会社 冷凍サイクル装置

Also Published As

Publication number Publication date
US20090282861A1 (en) 2009-11-19
AU2006293191B2 (en) 2009-11-19
EP1944562A1 (en) 2008-07-16
AU2006293191A1 (en) 2007-03-29
CN101268312B (zh) 2010-05-19
WO2007034745A1 (ja) 2007-03-29
CN101268312A (zh) 2008-09-17
JP2007085647A (ja) 2007-04-05
KR100905995B1 (ko) 2009-07-06
JP3982545B2 (ja) 2007-09-26
KR20080042178A (ko) 2008-05-14
EP1944562A4 (en) 2011-03-23

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