EP4317846A4 - Refrigeration cycle device - Google Patents

Refrigeration cycle device

Info

Publication number: EP4317846A4
Authority: EP; European Patent Office
Prior art keywords: refrigeration cycle; cycle device; refrigeration; cycle
Prior art date: 2021-03-31
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

EP22781288.0A

Other languages

German (de)

French (fr)

Other versions

EP4317846A1 (en

Inventor

Hiroki IKARASHI

Atsushi Yoshimi

Takuro Yamada

Eiji Kumakura

Ikuhiro Iwata

Ryuhei Kaji

Takeru MIYAZAKI

Hiroki Ueda

Masaki Tanaka

Masaki Nakayama

Hideho SAKAGUCHI

Osamu Tanaka

Hirokazu Fujino

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.)

2021-03-31

Filing date

2022-03-31

Publication date

2025-04-02

2022-03-31 Application filed by Daikin Industries Ltd filed Critical Daikin Industries Ltd

2024-02-07 Publication of EP4317846A1 publication Critical patent/EP4317846A1/en

2025-04-02 Publication of EP4317846A4 publication Critical patent/EP4317846A4/en

Status 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
- 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
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
- 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
- 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
- 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
- F25B2313/02732—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using two three-way 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
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/047—Water-cooled condensers

Landscapes

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)

EP22781288.0A 2021-03-31 2022-03-31 Refrigeration cycle device Pending EP4317846A4 (en)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
JP2021061280		2021-03-31
JP2021061278		2021-03-31
JP2021161994		2021-09-30
PCT/JP2022/016798 WO2022211078A1 (en)	2021-03-31	2022-03-31	Refrigeration cycle device

Publications (2)

Publication Number	Publication Date
EP4317846A1 EP4317846A1 (en)	2024-02-07
EP4317846A4 true EP4317846A4 (en)	2025-04-02

Family

ID=83459637

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP22781288.0A Pending EP4317846A4 (en)	2021-03-31	2022-03-31	Refrigeration cycle device

Country Status (4)

Country	Link
US (1)	US20240027104A1 (en)
EP (1)	EP4317846A4 (en)
JP (2)	JP7356057B2 (en)
WO (1)	WO2022211078A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP7614521B2 (en) *	2023-02-01	2025-01-16	ダイキン工業株式会社	Dual refrigeration cycle equipment
JP7602156B1 (en) *	2023-07-03	2024-12-18	ダイキン工業株式会社	Refrigeration equipment
JP7656242B2 (en)	2023-07-03	2025-04-03	ダイキン工業株式会社	Refrigeration equipment
JP7626953B1 (en)	2023-09-28	2025-02-05	ダイキン工業株式会社	Refrigeration Cycle Equipment
EP4575350A1 (en) *	2023-12-20	2025-06-25	Weiss Technik GmbH	Test chamber and method for controlling

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2014009829A (en) *	2012-06-28	2014-01-20	Panasonic Corp	Refrigeration cycle device and hot water generating device
US20150338145A1 (en) *	2014-05-22	2015-11-26	Lg Electronics Inc.	Heat pump
CN108759144A (en) *	2018-07-21	2018-11-06	青岛奥利凯中央空调有限公司	A kind of superposition type ultra-low temperature air source heat pump unit and its control method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4149389A (en) *	1978-03-06	1979-04-17	The Trane Company	Heat pump system selectively operable in a cascade mode and method of operation
JP2000320914A (en) *	1999-05-14	2000-11-24	Daikin Ind Ltd	Refrigeration equipment
DE102008047753B4 (en) *	2008-09-17	2015-10-08	Konvekta Ag	Refrigeration system with cooling circuits coupled by cascade heat exchanger
DE102011006174B4 (en) *	2011-03-25	2014-07-24	Bruker Biospin Ag	Refrigeration device with controllable evaporation temperature
US9429347B2 (en) *	2011-08-04	2016-08-30	Mitsubishi Electric Corporation	Refrigeration apparatus
JP5436631B2 (en) *	2012-07-18	2014-03-05	三菱電機株式会社	Refrigeration equipment
GB2565472B (en)	2016-06-23	2020-11-18	Mitsubishi Electric Corp	Cascade refrigeration system
JP7524523B2 (en)	2019-07-08	2024-07-30	富士電機株式会社	Dual refrigeration unit

2022
- 2022-03-31 EP EP22781288.0A patent/EP4317846A4/en active Pending
- 2022-03-31 WO PCT/JP2022/016798 patent/WO2022211078A1/en not_active Ceased
- 2022-03-31 JP JP2022058412A patent/JP7356057B2/en active Active
2023
- 2023-06-28 JP JP2023105591A patent/JP2023115228A/en active Pending
- 2023-09-28 US US18/374,425 patent/US20240027104A1/en active Pending

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2014009829A (en) *	2012-06-28	2014-01-20	Panasonic Corp	Refrigeration cycle device and hot water generating device
US20150338145A1 (en) *	2014-05-22	2015-11-26	Lg Electronics Inc.	Heat pump
CN108759144A (en) *	2018-07-21	2018-11-06	青岛奥利凯中央空调有限公司	A kind of superposition type ultra-low temperature air source heat pump unit and its control method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2022211078A1 *

Also Published As

Publication number	Publication date
US20240027104A1 (en)	2024-01-25
WO2022211078A1 (en)	2022-10-06
EP4317846A1 (en)	2024-02-07
JP2022159197A (en)	2022-10-17
JP7356057B2 (en)	2023-10-04
JP2023115228A (en)	2023-08-18

Legal Events

Date	Code	Title	Description
2022-10-10	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE
2024-01-05	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
2024-01-05	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
2024-02-07	17P	Request for examination filed	Effective date: 20231030
2024-02-07	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
2024-07-10	DAV	Request for validation of the european patent (deleted)
2024-07-10	DAX	Request for extension of the european patent (deleted)
2024-08-07	P01	Opt-out of the competence of the unified patent court (upc) registered	Free format text: CASE NUMBER: APP_38422/2024 Effective date: 20240627
2025-04-02	A4	Supplementary search report drawn up and despatched	Effective date: 20250304
2025-04-02	RIC1	Information provided on ipc code assigned before grant	Ipc: F25B 1/00 20060101ALI20250226BHEP Ipc: F25B 7/00 20060101AFI20250226BHEP

Publication	Publication Date	Title
EP3764027A4 (en)	2021-05-19	Refrigeration cycle device
EP4130610A4 (en)	2023-10-04	Refrigeration cycle device
EP3730576A4 (en)	2021-10-13	Refrigeration cycle device
EP4113039A4 (en)	2023-08-09	Refrigeration cycle device
EP4317846A4 (en)	2025-04-02	Refrigeration cycle device
EP4246057A4 (en)	2023-12-27	Refrigeration cycle device
EP4177539A4 (en)	2024-10-16	Refrigeration device
EP3798539A4 (en)	2021-06-09	Refrigeration cycle apparatus
EP4257892A4 (en)	2024-08-07	Refrigeration cycle system
EP3910263A4 (en)	2021-12-29	Refrigeration cycle device
EP4080136A4 (en)	2022-12-14	Refrigeration cycle device
EP4317834A4 (en)	2025-01-15	Refrigeration cycle device
EP4300004A4 (en)	2024-04-10	Refrigeration cycle device
EP3862649A4 (en)	2022-01-12	Refrigeration cycle apparatus
EP3910262A4 (en)	2021-12-29	Refrigeration cycle device
PL3936787T3 (en)	2024-05-27	Refrigeration cycle device
EP4089346A4 (en)	2022-12-28	Refrigeration cycle device
EP4257893A4 (en)	2024-05-15	Refrigeration cycle system
EP3764024A4 (en)	2021-10-06	Refrigeration cycle device
EP3575711A4 (en)	2020-01-01	Refrigeration cycle device
EP4170265A4 (en)	2023-07-26	Refrigeration cycle device
EP3981987A4 (en)	2022-06-29	Screw compressor, and refrigeration cycle device
EP4438976A4 (en)	2025-02-26	Refrigeration cycle device
EP4317845A4 (en)	2025-01-29	Refrigeration cycle device
EP4328525A4 (en)	2024-04-24	Refrigeration cycle device