EP4067715A4 - POWER ELEMENT AND EXPANSION VALVE USING THE SAME - Google Patents

POWER ELEMENT AND EXPANSION VALVE USING THE SAME Download PDF

Info

Publication number: EP4067715A4
Authority: EP; European Patent Office
Prior art keywords: same; expansion valve; power element; power; expansion
Prior art date: 2019-11-25
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.): Granted

Application number

EP20894465.2A

Other languages

German (de)

French (fr)

Other versions

EP4067715A1 (en

EP4067715B1 (en

Inventor

Yutaro Aoki

Junya Hayakawa

Yusuke Takahashi

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.)

Fujikoki Corp

Original Assignee

Fujikoki 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.)

2019-11-25

Filing date

2020-11-25

Publication date

2024-02-07

2020-11-25 Application filed by Fujikoki Corp filed Critical Fujikoki Corp

2022-10-05 Publication of EP4067715A1 publication Critical patent/EP4067715A1/en

2024-02-07 Publication of EP4067715A4 publication Critical patent/EP4067715A4/en

2026-03-18 Application granted granted Critical

2026-03-18 Publication of EP4067715B1 publication Critical patent/EP4067715B1/en

Status Active legal-status Critical Current

2040-11-25 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
- F25B41/33—Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant
- F25B41/335—Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant via diaphragms
- 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
- F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
- F25B2341/06—Details of flow restrictors or expansion valves

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Fluid Mechanics (AREA)
Mechanical Engineering (AREA)
Thermal Sciences (AREA)
General Engineering & Computer Science (AREA)
Temperature-Responsive Valves (AREA)

EP20894465.2A 2019-11-25 2020-11-25 Expansion valve comprising a power element Active EP4067715B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP2019212463A JP7182283B2 (en)	2019-11-25	2019-11-25	Power element and expansion valve using the same
PCT/JP2020/043823 WO2021106933A1 (en)	2019-11-25	2020-11-25	Power element and expansion valve using same

Publications (3)

Publication Number	Publication Date
EP4067715A1 EP4067715A1 (en)	2022-10-05
EP4067715A4 true EP4067715A4 (en)	2024-02-07
EP4067715B1 EP4067715B1 (en)	2026-03-18

Family

ID=76088658

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP20894465.2A Active EP4067715B1 (en)	2019-11-25	2020-11-25	Expansion valve comprising a power element

Country Status (5)

Country	Link
US (1)	US20230012455A1 (en)
EP (1)	EP4067715B1 (en)
JP (1)	JP7182283B2 (en)
CN (1)	CN114667424B (en)
WO (1)	WO2021106933A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP4361671A4 (en)	2021-06-22	2024-10-23	Hesai Technology Co., Ltd.	LIGHT DETECTION CIRCUIT AND METHOD, LASER RADAR AND STORAGE MEDIUM AND DETECTION SYSTEM
US12460844B2 (en) *	2021-12-08	2025-11-04	Parker-Hannifin Corporation	Ball seal for thermal sensor assembly of thermostatic expansion valve
US12487014B1 (en) *	2023-03-17	2025-12-02	Parker-Hannifin Corporation	Bulbless thermostatic expansion valve containing a thermal separation slot

Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS6191470A (en) *	1984-10-11	1986-05-09	松下冷機株式会社	Power element using diaphragm
JPH0979703A (en) *	1995-09-08	1997-03-28	Denso Corp	Thermal expansion valve
JPH109720A (en) *	1996-06-19	1998-01-16	Denso Corp	Thermal expansion valve
JP2006266568A (en) *	2005-03-23	2006-10-05	Tgk Co Ltd	Expansion valve
JP5680062B2 (en) *	2010-03-29	2015-03-04	株式会社不二工機	Expansion valve
US20160290692A1 (en) *	2015-04-03	2016-10-06	Fujikoki Corporation	Caulking fixation type power element and expansion valve using the same
WO2018188512A1 (en) *	2017-04-13	2018-10-18	浙江三花汽车零部件有限公司	Thermal expansion valve
WO2019181409A1 (en) *	2018-03-20	2019-09-26	株式会社不二工機	Power element and expansion valve having same

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2005008091A (en) *	2003-06-20	2005-01-13	Tgk Co Ltd	Expansion valve
JP2008020141A (en) *	2006-07-13	2008-01-31	Denso Corp	Pressure control valve
JP2009264685A (en) *	2008-04-25	2009-11-12	Tgk Co Ltd	Expansion valve
JP2012225561A (en) *	2011-04-19	2012-11-15	Tgk Co Ltd	Expansion valve
JP5743744B2 (en) *	2011-06-24	2015-07-01	株式会社不二工機	Diaphragm type fluid control valve
CN105402960B (en) *	2014-09-09	2020-04-10	株式会社不二工机	Expansion valve
JP6569061B2 (en) *	2015-08-19	2019-09-04	株式会社テージーケー	Control valve
JP6779030B2 (en) *	2016-04-27	2020-11-04	株式会社不二工機	Expansion valve
JP6697976B2 (en) *	2016-08-09	2020-05-27	株式会社不二工機	Expansion valve

2019
- 2019-11-25 JP JP2019212463A patent/JP7182283B2/en active Active
2020
- 2020-11-25 EP EP20894465.2A patent/EP4067715B1/en active Active
- 2020-11-25 US US17/778,964 patent/US20230012455A1/en not_active Abandoned
- 2020-11-25 CN CN202080076732.2A patent/CN114667424B/en active Active
- 2020-11-25 WO PCT/JP2020/043823 patent/WO2021106933A1/en not_active Ceased

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS6191470A (en) *	1984-10-11	1986-05-09	松下冷機株式会社	Power element using diaphragm
JPH0979703A (en) *	1995-09-08	1997-03-28	Denso Corp	Thermal expansion valve
JPH109720A (en) *	1996-06-19	1998-01-16	Denso Corp	Thermal expansion valve
JP2006266568A (en) *	2005-03-23	2006-10-05	Tgk Co Ltd	Expansion valve
JP5680062B2 (en) *	2010-03-29	2015-03-04	株式会社不二工機	Expansion valve
US20160290692A1 (en) *	2015-04-03	2016-10-06	Fujikoki Corporation	Caulking fixation type power element and expansion valve using the same
WO2018188512A1 (en) *	2017-04-13	2018-10-18	浙江三花汽车零部件有限公司	Thermal expansion valve
WO2019181409A1 (en) *	2018-03-20	2019-09-26	株式会社不二工機	Power element and expansion valve having same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2021106933A1 *

Also Published As

Publication number	Publication date
CN114667424A (en)	2022-06-24
US20230012455A1 (en)	2023-01-12
EP4067715A1 (en)	2022-10-05
WO2021106933A1 (en)	2021-06-03
JP2021085547A (en)	2021-06-03
EP4067715B1 (en)	2026-03-18
CN114667424B (en)	2023-09-15
JP7182283B2 (en)	2022-12-02

Legal Events

Date	Code	Title	Description
2021-06-04	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE
2022-09-02	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
2022-09-02	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
2022-10-05	17P	Request for examination filed	Effective date: 20220511
2022-10-05	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
2023-03-01	DAV	Request for validation of the european patent (deleted)
2023-03-01	DAX	Request for extension of the european patent (deleted)
2024-02-07	A4	Supplementary search report drawn up and despatched	Effective date: 20240108
2024-02-07	RIC1	Information provided on ipc code assigned before grant	Ipc: F25B 41/335 20210101ALI20240102BHEP Ipc: F16K 31/68 20060101AFI20240102BHEP
2025-10-29	GRAP	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOSNIGR1
2025-10-29	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: GRANT OF PATENT IS INTENDED
2025-12-03	INTG	Intention to grant announced	Effective date: 20251029
2026-02-06	GRAS	Grant fee paid	Free format text: ORIGINAL CODE: EPIDOSNIGR3
2026-02-13	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
2026-02-13	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE PATENT HAS BEEN GRANTED
2026-03-18	AK	Designated contracting states	Kind code of ref document: B1 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
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