EP4339533A4 - Refrigeration cycle device - Google Patents

Refrigeration cycle device

Info

Publication number
EP4339533A4
EP4339533A4 EP21941906.6A EP21941906A EP4339533A4 EP 4339533 A4 EP4339533 A4 EP 4339533A4 EP 21941906 A EP21941906 A EP 21941906A EP 4339533 A4 EP4339533 A4 EP 4339533A4
Authority
EP
European Patent Office
Prior art keywords
refrigeration cycle
cycle device
refrigeration
cycle
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.)
Pending
Application number
EP21941906.6A
Other languages
German (de)
French (fr)
Other versions
EP4339533A1 (en
Inventor
Tomotaka Ishikawa
Yusuke Arii
Kohei Ueda
Motoshi Hayasaka
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP4339533A1 publication Critical patent/EP4339533A1/en
Publication of EP4339533A4 publication Critical patent/EP4339533A4/en
Pending legal-status Critical Current

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
    • 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
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
    • 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
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/02—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • 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
    • F25B2500/16—Lubrication
    • 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
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2509—Economiser valves
    • 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
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2513—Expansion valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Compressor (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP21941906.6A 2021-05-13 2021-05-13 Refrigeration cycle device Pending EP4339533A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/018149 WO2022239172A1 (en) 2021-05-13 2021-05-13 Refrigeration cycle device

Publications (2)

Publication Number Publication Date
EP4339533A1 EP4339533A1 (en) 2024-03-20
EP4339533A4 true EP4339533A4 (en) 2024-05-01

Family

ID=84028536

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21941906.6A Pending EP4339533A4 (en) 2021-05-13 2021-05-13 Refrigeration cycle device

Country Status (4)

Country Link
EP (1) EP4339533A4 (en)
JP (1) JPWO2022239172A1 (en)
CN (1) CN117203475A (en)
WO (1) WO2022239172A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5016447A (en) * 1990-05-02 1991-05-21 Carrier Corporation Oil return for a two-stage compressor having interstage cooling
JP2021055940A (en) * 2019-09-30 2021-04-08 ダイキン工業株式会社 Heat source unit and refrigerating device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4583280B2 (en) 2005-09-30 2010-11-17 三洋電機株式会社 Refrigeration equipment
JP5474140B2 (en) * 2012-07-20 2014-04-16 三菱電機株式会社 Refrigeration equipment
JP2016003840A (en) * 2014-06-18 2016-01-12 パナソニックＩｐマネジメント株式会社 Refrigeration system and cooling coil

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5016447A (en) * 1990-05-02 1991-05-21 Carrier Corporation Oil return for a two-stage compressor having interstage cooling
JP2021055940A (en) * 2019-09-30 2021-04-08 ダイキン工業株式会社 Heat source unit and refrigerating device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2022239172A1 *

Also Published As

Publication number Publication date
WO2022239172A1 (en) 2022-11-17
JPWO2022239172A1 (en) 2022-11-17
CN117203475A (en) 2023-12-08
EP4339533A1 (en) 2024-03-20

Similar Documents

Publication Publication Date Title
EP4092353A4 (en) Refrigeration cycle device
EP4130610A4 (en) Refrigeration cycle device
EP4155629A4 (en) Refrigeration cycle device
PL3862650T3 (en) Refrigeration cycle device
EP4113039A4 (en) Refrigeration cycle device
EP4160108A4 (en) Refrigeration cycle device
EP4113019A4 (en) Refrigeration cycle device
EP4113020A4 (en) Refrigeration cycle device
EP4184077A4 (en) Refrigeration cycle device
EP4170265A4 (en) Refrigeration cycle device
EP4134601A4 (en) Refrigeration cycle device
EP4102153A4 (en) Refrigeration cycle device
EP4089346A4 (en) Refrigeration cycle device
PL3764004T3 (en) Refrigeration cycle device
PL3764003T3 (en) Refrigeration cycle device
EP4317849A4 (en) Refrigeration cycle device
EP4286768A4 (en) Refrigeration cycle device
EP4339533A4 (en) Refrigeration cycle device
EP4328529A4 (en) Refrigeration cycle device
EP4328525A4 (en) Refrigeration cycle device
EP4317847A4 (en) Refrigeration cycle device
GB202312113D0 (en) Refrigeration cycle device
EP4300004A4 (en) Refrigeration cycle device
GB202311846D0 (en) Refrigeration cycle device
EP4290158A4 (en) Refrigeration cycle device

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20231023

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

A4 Supplementary search report drawn up and despatched

Effective date: 20240404

RIC1 Information provided on ipc code assigned before grant

Ipc: F25B 43/02 20060101ALI20240327BHEP

Ipc: F25B 31/00 20060101ALI20240327BHEP

Ipc: F25B 1/10 20060101AFI20240327BHEP