EP4317845A4 - Refrigeration cycle device - Google Patents

Refrigeration cycle device

Info

Publication number: EP4317845A4
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

EP22781287.2A

Other languages

German (de)

French (fr)

Other versions

EP4317845A1 (en

Inventor

Atsushi Yoshimi

Takuro Yamada

Eiji Kumakura

Ikuhiro Iwata

Ryuhei Kaji

Takeru MIYAZAKI

Hiroki Ueda

Masaki Tanaka

Masaki Nakayama

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

2025-01-29

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

2024-02-07 Publication of EP4317845A1 publication Critical patent/EP4317845A1/en

2025-01-29 Publication of EP4317845A4 publication Critical patent/EP4317845A4/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
- 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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
- 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
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/004—Outdoor unit with water as a heat sink or heat source
- 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
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0233—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel 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
- 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
- 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
- F25B2400/12—Inflammable refrigerants
- F25B2400/121—Inflammable refrigerants using R1234

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)

EP22781287.2A 2021-03-31 2022-03-31 Refrigeration cycle device Pending EP4317845A4 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP2021061280		2021-03-31
PCT/JP2022/016797 WO2022211077A1 (en)	2021-03-31	2022-03-31	Refrigeration cycle device

Publications (2)

Publication Number	Publication Date
EP4317845A1 EP4317845A1 (en)	2024-02-07
EP4317845A4 true EP4317845A4 (en)	2025-01-29

Family

ID=83459631

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP22781287.2A Pending EP4317845A4 (en)	2021-03-31	2022-03-31	Refrigeration cycle device

Country Status (5)

Country	Link
US (1)	US20240019176A1 (en)
EP (1)	EP4317845A4 (en)
JP (1)	JP7208577B2 (en)
CN (1)	CN117597558A (en)
WO (1)	WO2022211077A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US20250052458A1 (en) *	2023-08-11	2025-02-13	Haier Us Appliance Solutions, Inc.	Air conditioner with cross-over refrigerant flow

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2012161325A1 (en) *	2011-05-25	2012-11-29	東芝キヤリア株式会社	Warming device
EP2679934A1 (en) *	2011-02-22	2014-01-01	Hitachi, Ltd.	Air conditioning/hot water supply system and control method for air conditioning/hot water supply system
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 (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2000320914A (en)	1999-05-14	2000-11-24	Daikin Ind Ltd	Refrigeration equipment
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
US10473340B2 (en) *	2013-08-22	2019-11-12	Mitsubishi Electric Corporation	Indoor unit for air-conditioning apparatus
JP6293557B2 (en)	2014-04-01	2018-03-14	東芝キヤリア株式会社	Refrigeration cycle equipment
US10907863B2 (en) *	2016-01-06	2021-02-02	Honeywell International Inc.	Air conditioning systems and methods
KR20250061766A (en) *	2016-02-29	2025-05-08	베리티 아게	Systems and methods for charging, transporting, and operating flying machines
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 JP JP2022058411A patent/JP7208577B2/en active Active
- 2022-03-31 WO PCT/JP2022/016797 patent/WO2022211077A1/en not_active Ceased
- 2022-03-31 EP EP22781287.2A patent/EP4317845A4/en active Pending
- 2022-03-31 CN CN202280026125.4A patent/CN117597558A/en active Pending
2023
- 2023-09-29 US US18/374,754 patent/US20240019176A1/en active Pending

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2679934A1 (en) *	2011-02-22	2014-01-01	Hitachi, Ltd.	Air conditioning/hot water supply system and control method for air conditioning/hot water supply system
WO2012161325A1 (en) *	2011-05-25	2012-11-29	東芝キヤリア株式会社	Warming device
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 WO2022211077A1 *

Also Published As

Publication number	Publication date
JP2022159196A (en)	2022-10-17
JP7208577B2 (en)	2023-01-19
CN117597558A (en)	2024-02-23
EP4317845A1 (en)	2024-02-07
US20240019176A1 (en)	2024-01-18
WO2022211077A1 (en)	2022-10-06

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_38425/2024 Effective date: 20240627
2025-01-29	A4	Supplementary search report drawn up and despatched	Effective date: 20250108
2025-01-29	RIC1	Information provided on ipc code assigned before grant	Ipc: F25B 1/00 20060101ALI20241223BHEP Ipc: F25B 7/00 20060101AFI20241223BHEP
2026-01-01	GRAP	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOSNIGR1
2026-01-01	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: GRANT OF PATENT IS INTENDED
2026-01-28	INTG	Intention to grant announced	Effective date: 20260102
2026-04-08	GRAS	Grant fee paid	Free format text: ORIGINAL CODE: EPIDOSNIGR3
2026-04-10	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
2026-04-10	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE PATENT HAS BEEN GRANTED

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