EP1380801A3 - Expansion valve - Google Patents

Expansion valve Download PDF

Info

Publication number
EP1380801A3
EP1380801A3 EP03015469A EP03015469A EP1380801A3 EP 1380801 A3 EP1380801 A3 EP 1380801A3 EP 03015469 A EP03015469 A EP 03015469A EP 03015469 A EP03015469 A EP 03015469A EP 1380801 A3 EP1380801 A3 EP 1380801A3
Authority
EP
European Patent Office
Prior art keywords
expansion valve
refrigerant
during start
flow rate
flow
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.)
Granted
Application number
EP03015469A
Other languages
German (de)
French (fr)
Other versions
EP1380801B1 (en
EP1380801A2 (en
Inventor
Isao c/o TGK Co. Ltd. Sendo
Tomohiro c/o TGK Co. Ltd. Yuasa
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.)
TGK Co Ltd
Original Assignee
TGK Co 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.)
Filing date
Publication date
Application filed by TGK Co Ltd filed Critical TGK Co Ltd
Publication of EP1380801A2 publication Critical patent/EP1380801A2/en
Publication of EP1380801A3 publication Critical patent/EP1380801A3/en
Application granted granted Critical
Publication of EP1380801B1 publication Critical patent/EP1380801B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • F25B2341/068—Expansion valves combined with a sensor
    • F25B2341/0683—Expansion valves combined with a sensor the sensor is disposed in the suction line and influenced by the temperature or the pressure of the suction gas
    • 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
    • F25B2500/12—Sound

Abstract

The stroke of a valve element 8 of an expansion valve is set such that refrigerant flows at a flow rate 1.0 to 1.4 times the flow rate corresponding to the set tonnage. This means a limit of the valve lift to fully open state during start-up and prevents an unnecessary and excessive refrigerant flow and reduces flow noise of refrigerant during start-up and allows to save driving force for the compressor.
EP03015469A 2002-07-11 2003-07-09 Expansion valve Expired - Fee Related EP1380801B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2002202013 2002-07-11
JP2002202013 2002-07-11
JP2003133266A JP4118740B2 (en) 2002-07-11 2003-05-12 Expansion valve
JP2003133266 2003-05-12

Publications (3)

Publication Number Publication Date
EP1380801A2 EP1380801A2 (en) 2004-01-14
EP1380801A3 true EP1380801A3 (en) 2005-05-04
EP1380801B1 EP1380801B1 (en) 2008-05-28

Family

ID=29738477

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03015469A Expired - Fee Related EP1380801B1 (en) 2002-07-11 2003-07-09 Expansion valve

Country Status (6)

Country Link
US (1) US20040007015A1 (en)
EP (1) EP1380801B1 (en)
JP (1) JP4118740B2 (en)
KR (1) KR20040007290A (en)
CN (1) CN1260537C (en)
DE (1) DE60321274D1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006322689A (en) * 2005-05-20 2006-11-30 Tgk Co Ltd Thermal expansion valve
US7980482B2 (en) 2007-08-17 2011-07-19 Automotive Components Holdings, Llc Thermostatic expansion valve having a restricted flow passage for noise attenuation
KR101572574B1 (en) * 2010-08-12 2015-12-01 한온시스템 주식회사 Expansion valve and air conditioner for vehicle having the same
JP5724904B2 (en) 2012-02-20 2015-05-27 株式会社デンソー Expansion valve
JP6007369B2 (en) * 2012-12-12 2016-10-12 株式会社テージーケー Control valve
JP6182363B2 (en) * 2013-06-07 2017-08-16 株式会社不二工機 Expansion valve
JP2016099012A (en) * 2014-11-18 2016-05-30 株式会社ヴァレオジャパン Expansion device and refrigeration cycle of air conditioner for vehicle
JP2016223751A (en) * 2015-06-04 2016-12-28 株式会社テージーケー Expansion valve
JP6678441B2 (en) * 2015-12-07 2020-04-08 三菱電機株式会社 Thermal expansion valve
JP6478958B2 (en) * 2016-09-02 2019-03-06 株式会社不二工機 Control valve
JP7000294B2 (en) * 2018-10-15 2022-01-19 株式会社鷺宮製作所 Temperature sensitive control valve
CN113090811B (en) * 2020-08-12 2022-06-28 深圳市亨瑞达制冷设备有限公司 Industrial water-cooled water chiller without squeaking

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07190565A (en) * 1993-12-28 1995-07-28 Nippondenso Co Ltd Expansion valve for refrigerant
JPH11108502A (en) * 1997-10-02 1999-04-23 Denso Corp Temperature type expansion valve
EP1052463A2 (en) * 1999-05-11 2000-11-15 Fujikoki Corporation Expansion valve
EP1069385A2 (en) * 1999-07-12 2001-01-17 TGK Co., Ltd. An expansion valve in a refrigerating cycle

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3785229B2 (en) * 1996-09-12 2006-06-14 株式会社不二工機 Expansion valve
JPH10253199A (en) * 1997-03-11 1998-09-25 Fuji Koki Corp Thermal expansion valve
JP4014688B2 (en) * 1997-03-27 2007-11-28 株式会社不二工機 Expansion valve
JPH10288424A (en) * 1997-04-11 1998-10-27 Fuji Koki Corp Temperature type expansion valve
US6062484A (en) * 1998-05-20 2000-05-16 Eaton Corporation Modular thermal expansion valve and cartridge therefor
JP3995828B2 (en) * 1999-05-11 2007-10-24 株式会社不二工機 Temperature expansion valve
JP2001116401A (en) * 1999-10-15 2001-04-27 Tgk Co Ltd Expansion valve
JP2002310539A (en) 2001-04-09 2002-10-23 Tgk Co Ltd Expansion valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07190565A (en) * 1993-12-28 1995-07-28 Nippondenso Co Ltd Expansion valve for refrigerant
JPH11108502A (en) * 1997-10-02 1999-04-23 Denso Corp Temperature type expansion valve
EP1052463A2 (en) * 1999-05-11 2000-11-15 Fujikoki Corporation Expansion valve
EP1069385A2 (en) * 1999-07-12 2001-01-17 TGK Co., Ltd. An expansion valve in a refrigerating cycle

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 10 30 November 1995 (1995-11-30) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 09 30 July 1999 (1999-07-30) *

Also Published As

Publication number Publication date
KR20040007290A (en) 2004-01-24
JP4118740B2 (en) 2008-07-16
JP2004093106A (en) 2004-03-25
DE60321274D1 (en) 2008-07-10
EP1380801B1 (en) 2008-05-28
US20040007015A1 (en) 2004-01-15
EP1380801A2 (en) 2004-01-14
CN1470822A (en) 2004-01-28
CN1260537C (en) 2006-06-21

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