EP3978831A4 - Air conditioner - Google Patents

Air conditioner Download PDF

Info

Publication number
EP3978831A4
EP3978831A4 EP20822547.4A EP20822547A EP3978831A4 EP 3978831 A4 EP3978831 A4 EP 3978831A4 EP 20822547 A EP20822547 A EP 20822547A EP 3978831 A4 EP3978831 A4 EP 3978831A4
Authority
EP
European Patent Office
Prior art keywords
air conditioner
conditioner
air
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.)
Granted
Application number
EP20822547.4A
Other languages
German (de)
French (fr)
Other versions
EP3978831B1 (en
EP3978831A1 (en
Inventor
Takuro Yamada
Eiji Kumakura
Atsushi Yoshimi
Ikuhiro Iwata
Tomoatsu Minamida
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 EP3978831A1 publication Critical patent/EP3978831A1/en
Publication of EP3978831A4 publication Critical patent/EP3978831A4/en
Application granted granted Critical
Publication of EP3978831B1 publication Critical patent/EP3978831B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F25B7/00—Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
    • 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
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/10—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point with several cooling stages
    • 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
    • F25B31/00—Compressor arrangements
    • F25B31/002—Lubrication
    • F25B31/004—Lubrication oil recirculating arrangements
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line arrangements
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line arrangements
    • F25B41/42—Arrangements for diverging or converging flows, e.g. branch lines or junctions
    • 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
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/13—Economisers
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/16—Lubrication

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP20822547.4A 2019-06-12 2020-06-10 Air conditioner Active EP3978831B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019109592A JP2020201011A (en) 2019-06-12 2019-06-12 air conditioner
PCT/JP2020/022922 WO2020250952A1 (en) 2019-06-12 2020-06-10 Air conditioner

Publications (3)

Publication Number Publication Date
EP3978831A1 EP3978831A1 (en) 2022-04-06
EP3978831A4 true EP3978831A4 (en) 2022-08-03
EP3978831B1 EP3978831B1 (en) 2023-08-09

Family

ID=73744006

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20822547.4A Active EP3978831B1 (en) 2019-06-12 2020-06-10 Air conditioner

Country Status (7)

Country Link
US (1) US20220316767A1 (en)
EP (1) EP3978831B1 (en)
JP (1) JP2020201011A (en)
CN (1) CN113950602B (en)
ES (1) ES2961904T3 (en)
PL (1) PL3978831T3 (en)
WO (1) WO2020250952A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4032194A1 (en) * 2019-09-16 2022-07-27 Nokia Solutions and Networks Oy Antenna selection for uplink signals in a wireless communication system
JP7299519B2 (en) * 2021-09-30 2023-06-28 ダイキン工業株式会社 Cascade unit and refrigeration system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1243876A1 (en) * 1999-12-28 2002-09-25 Daikin Industries, Ltd. Refrigerating device
WO2008013105A1 (en) * 2006-07-27 2008-01-31 Daikin Industries, Ltd. Air conditioner
US20140373569A1 (en) * 2012-03-26 2014-12-25 Hitachi Appliances, Inc. Refrigerating Cycle Device
EP2910872A1 (en) * 2012-10-22 2015-08-26 Mitsubishi Electric Corporation Freezing device
WO2018135238A1 (en) * 2017-01-20 2018-07-26 ダイキン工業株式会社 Indoor unit

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6146859A (en) * 1984-08-13 1986-03-07 株式会社日立製作所 Two-element refrigerator
US5025634A (en) * 1989-04-25 1991-06-25 Dressler William E Heating and cooling apparatus
JP3327197B2 (en) * 1997-08-19 2002-09-24 三菱電機株式会社 Refrigeration air conditioner
BRPI0103786B1 (en) * 2001-08-29 2015-06-16 Brasil Compressores Sa Refrigeration control system of a refrigerated environment, method of control of refrigeration and cooler system
US6557361B1 (en) * 2002-03-26 2003-05-06 Praxair Technology Inc. Method for operating a cascade refrigeration system
WO2005052467A1 (en) * 2003-11-28 2005-06-09 Mitsubishi Denki Kabushiki Kaisha Freezer and air contitioner
JP2006125762A (en) * 2004-10-29 2006-05-18 Mitsubishi Heavy Ind Ltd Indoor unit, air conditioning device comprising the same, and its operating method
JP4659521B2 (en) * 2004-12-08 2011-03-30 三菱電機株式会社 Refrigeration air conditioner, operation method of refrigeration air conditioner, method of manufacturing refrigeration air conditioner, refrigeration apparatus, method of manufacturing refrigeration apparatus
JP4609469B2 (en) * 2007-02-02 2011-01-12 ダイキン工業株式会社 Air conditioner
KR100803144B1 (en) * 2007-03-28 2008-02-14 엘지전자 주식회사 Air conditioner
JP2009126300A (en) * 2007-11-21 2009-06-11 Denso Corp Refrigerating cycle device, and vehicular air conditioner having the same
JP5323023B2 (en) * 2010-10-19 2013-10-23 三菱電機株式会社 Refrigeration equipment
JP2012193908A (en) * 2011-03-17 2012-10-11 Toshiba Carrier Corp Dual refrigerating cycle device
EP2741028B1 (en) * 2011-08-04 2020-03-11 Mitsubishi Electric Corporation Refrigeration device
JP5759076B2 (en) * 2012-09-06 2015-08-05 三菱電機株式会社 Refrigeration equipment
JP2014074508A (en) 2012-10-02 2014-04-24 Samsung R&D Institute Japan Co Ltd Cascade heat exchanger
JP2015152240A (en) * 2014-02-14 2015-08-24 パナソニックＩｐマネジメント株式会社 air conditioner
US10254016B2 (en) * 2014-03-17 2019-04-09 Mitsubishi Electric Corporation Refrigeration cycle apparatus and method for controlling refrigeration cycle apparatus
JPWO2020004108A1 (en) * 2018-06-25 2021-07-15 ダイキン工業株式会社 Air conditioning system
US20200378657A1 (en) * 2019-05-31 2020-12-03 Trane International Inc. Heat transfer circuit with increased bearing lubricant temperature, and method of supplying thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1243876A1 (en) * 1999-12-28 2002-09-25 Daikin Industries, Ltd. Refrigerating device
WO2008013105A1 (en) * 2006-07-27 2008-01-31 Daikin Industries, Ltd. Air conditioner
US20140373569A1 (en) * 2012-03-26 2014-12-25 Hitachi Appliances, Inc. Refrigerating Cycle Device
EP2910872A1 (en) * 2012-10-22 2015-08-26 Mitsubishi Electric Corporation Freezing device
WO2018135238A1 (en) * 2017-01-20 2018-07-26 ダイキン工業株式会社 Indoor unit
EP3572734A1 (en) * 2017-01-20 2019-11-27 Daikin Industries, Ltd. Indoor unit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020250952A1 *

Also Published As

Publication number Publication date
CN113950602A (en) 2022-01-18
CN113950602B (en) 2023-08-04
PL3978831T3 (en) 2024-04-08
WO2020250952A1 (en) 2020-12-17
EP3978831B1 (en) 2023-08-09
JP2020201011A (en) 2020-12-17
ES2961904T3 (en) 2024-03-14
EP3978831A1 (en) 2022-04-06
US20220316767A1 (en) 2022-10-06

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