EP4350247A4 - REFRIGERATION CYCLE DEVICE - Google Patents

REFRIGERATION CYCLE DEVICE Download PDF

Info

Publication number: EP4350247A4
Authority: EP; European Patent Office
Prior art keywords: refrigeration cycle; cycle device; refrigeration; cycle
Prior art date: 2021-05-25
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP21942943.8A

Other languages

German (de)

French (fr)

Other versions

EP4350247A1 (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.)

2021-05-25

Filing date

2021-05-25

Publication date

2024-08-14

2021-05-25 Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp

2024-04-10 Publication of EP4350247A1 publication Critical patent/EP4350247A1/en

2024-08-14 Publication of EP4350247A4 publication Critical patent/EP4350247A4/en

Status Withdrawn legal-status Critical Current

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
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control 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
- 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
- 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
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
- F25B2309/061—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide with cycle highest pressure above the supercritical pressure
- 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
- F25B2400/04—Refrigeration circuit bypassing means
- F25B2400/0409—Refrigeration circuit bypassing means for the evaporator
- 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
- F25B2400/04—Refrigeration circuit bypassing means
- F25B2400/0411—Refrigeration circuit bypassing means for the expansion valve or capillary tube
- 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
- 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
- F25B2400/16—Receivers
- 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
- F25B2400/23—Separators
- 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
- F25B2500/07—Exceeding a certain pressure value in a refrigeration component or 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
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- 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
- F25B2600/02—Compressor control
- F25B2600/025—Compressor control by controlling speed
- 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
- F25B2600/2501—Bypass 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
- F25B2600/2509—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
- F25B2600/2515—Flow valves

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)
Applications Or Details Of Rotary Compressors (AREA)

EP21942943.8A 2021-05-25 2021-05-25 REFRIGERATION CYCLE DEVICE Withdrawn EP4350247A4 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
PCT/JP2021/019829 WO2022249288A1 (en)	2021-05-25	2021-05-25	Refrigeration cycle device

Publications (2)

Publication Number	Publication Date
EP4350247A1 EP4350247A1 (en)	2024-04-10
EP4350247A4 true EP4350247A4 (en)	2024-08-14

Family

ID=84229691

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP21942943.8A Withdrawn EP4350247A4 (en)	2021-05-25	2021-05-25	REFRIGERATION CYCLE DEVICE

Country Status (4)

Country	Link
EP (1)	EP4350247A4 (en)
JP (1)	JP7466771B2 (en)
CN (1)	CN117321352A (en)
WO (1)	WO2022249288A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2006258397A (en) *	2005-03-18	2006-09-28	Mitsubishi Electric Corp	Refrigerator
US20130104584A1 (en) *	2010-07-07	2013-05-02	Denso Corporation	Two-stage pressurising refrigeration cycle device
US8783060B2 (en) *	2008-12-15	2014-07-22	Denso Corporation	Ejector-type refrigerant cycle device
WO2021048899A1 (en) *	2019-09-09	2021-03-18	三菱電機株式会社	Outdoor unit and refrigeration cycle device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP5234168B2 (en) *	2008-09-30	2013-07-10	ダイキン工業株式会社	Refrigeration equipment
JP5510393B2 (en)	2011-05-30	2014-06-04	株式会社デンソー	Multistage compression refrigeration cycle equipment
JP6765086B2 (en)	2017-02-14	2020-10-07	パナソニックＩｐマネジメント株式会社	Refrigeration equipment
CN113692517B (en)	2019-04-10	2022-12-23	三菱电机株式会社	Outdoor unit, refrigeration cycle device, and refrigerator

2021
- 2021-05-25 JP JP2023523766A patent/JP7466771B2/en active Active
- 2021-05-25 CN CN202180098288.9A patent/CN117321352A/en active Pending
- 2021-05-25 EP EP21942943.8A patent/EP4350247A4/en not_active Withdrawn
- 2021-05-25 WO PCT/JP2021/019829 patent/WO2022249288A1/en active Application Filing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2006258397A (en) *	2005-03-18	2006-09-28	Mitsubishi Electric Corp	Refrigerator
US8783060B2 (en) *	2008-12-15	2014-07-22	Denso Corporation	Ejector-type refrigerant cycle device
US20130104584A1 (en) *	2010-07-07	2013-05-02	Denso Corporation	Two-stage pressurising refrigeration cycle device
WO2021048899A1 (en) *	2019-09-09	2021-03-18	三菱電機株式会社	Outdoor unit and refrigeration cycle device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2022249288A1 *

Also Published As

Publication number	Publication date
JP7466771B2 (en)	2024-04-12
CN117321352A (en)	2023-12-29
WO2022249288A1 (en)	2022-12-01
JPWO2022249288A1 (en)	2022-12-01
EP4350247A1 (en)	2024-04-10

Publication	Publication Date	Title
EP3598037A4 (en)	2020-02-12	REFRIGERATION CYCLE DEVICE
EP3825379A4 (en)	2022-09-28	REFRIGERANT CYCLE DEVICE
EP3477222A4 (en)	2019-05-22	REFRIGERATION CYCLE DEVICE
EP3862655A4 (en)	2021-11-17	COOLING CYCLE DEVICE
EP3929506A4 (en)	2022-03-30	REFRIGERATING CYCLE DEVICE
EP3460356A4 (en)	2019-05-01	REFRIGERATION CYCLE DEVICE
EP3499142A4 (en)	2019-07-31	REFRIGERATION CYCLE DEVICE
EP3428555A4 (en)	2019-03-20	REFRIGERANT CYCLE DEVICE
EP4317846A4 (en)	2025-04-02	REFRIGERATING CYCLE DEVICE
EP4317834A4 (en)	2025-01-15	REFRIGERATION CYCLE DEVICE
EP4023960A4 (en)	2023-10-04	SEMICONDUCTOR REFRIGERATION DEVICE
EP4386279A4 (en)	2024-11-27	REFRIGERATION CYCLE DEVICE
EP4343215A4 (en)	2024-12-25	REFRIGERATION CYCLE DEVICE
EP3992543A4 (en)	2023-03-15	REFRIGERATION CYCLE DEVICE
EP3805571A4 (en)	2021-05-26	BLOWER AND REFRIGERATION CYCLE DEVICE
EP3859230A4 (en)	2022-05-04	REFRIGERATING CYCLE DEVICE
EP4170265A4 (en)	2023-07-26	REFRIGERATION CYCLE DEVICE
EP3561410A4 (en)	2020-02-12	REFRIGERATION CYCLE DEVICE
EP3786544A4 (en)	2021-05-26	COOLING CYCLE DEVICE
EP3985325A4 (en)	2022-11-16	REFRIGERATING CYCLE DEVICE
EP4443072A4 (en)	2025-04-02	REFRIGERATING CYCLE DEVICE
EP4206565A4 (en)	2024-09-18	REFRIGERATION CYCLE DEVICE
EP4365512A4 (en)	2024-08-14	REFRIGERATION CYCLE DEVICE
EP3816544A4 (en)	2021-06-23	REFRIGERATION CYCLE DEVICE
EP4431839A4 (en)	2024-12-18	REFRIGERATION CYCLE DEVICE

Legal Events

Date	Code	Title	Description
2022-12-02	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE
2024-03-08	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
2024-03-08	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
2024-04-10	17P	Request for examination filed	Effective date: 20231117
2024-04-10	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
2024-08-14	A4	Supplementary search report drawn up and despatched	Effective date: 20240717
2024-08-14	RIC1	Information provided on ipc code assigned before grant	Ipc: F25B 49/02 20060101ALI20240711BHEP Ipc: F25B 9/00 20060101ALI20240711BHEP Ipc: F25B 41/20 20210101ALI20240711BHEP Ipc: F25B 1/10 20060101AFI20240711BHEP
2024-08-28	DAV	Request for validation of the european patent (deleted)
2024-08-28	DAX	Request for extension of the european patent (deleted)
2024-09-06	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN
2024-10-09	18W	Application withdrawn	Effective date: 20240905