EP2503267A3 - Expansion valve - Google Patents

Expansion valve Download PDF

Info

Publication number
EP2503267A3
EP2503267A3 EP12150529.1A EP12150529A EP2503267A3 EP 2503267 A3 EP2503267 A3 EP 2503267A3 EP 12150529 A EP12150529 A EP 12150529A EP 2503267 A3 EP2503267 A3 EP 2503267A3
Authority
EP
European Patent Office
Prior art keywords
power element
diaphragm
expansion valve
valve
main body
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
EP12150529.1A
Other languages
German (de)
French (fr)
Other versions
EP2503267B1 (en
EP2503267A2 (en
Inventor
Kazuto Kobayashi
Takashi Mogi
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.)
Filing date
Publication date
Application filed by Fujikoki Corp filed Critical Fujikoki Corp
Publication of EP2503267A2 publication Critical patent/EP2503267A2/en
Publication of EP2503267A3 publication Critical patent/EP2503267A3/en
Application granted granted Critical
Publication of EP2503267B1 publication Critical patent/EP2503267B1/en
Active legal-status Critical Current
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
    • 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
    • F25B2500/01—Geometry problems, e.g. for reducing size

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)
  • Sealing Battery Cases Or Jackets (AREA)
  • Valve Housings (AREA)

Abstract

An expansion valve has a valve main body 10, a valve member 40, and a power element 100. The power element 100 includes a diaphragm 130 sandwiched between an upper cover member 110, and a receiving member 120. Outer peripheries of the upper cover member 110, the diaphragm 130, and the receiving member 120 are joined by laser welding. The distance from a fulcrum position of the diaphragm 130 to an outer periphery of the power element 100 is set to be a distance obtained by adding 0.2 mm to 1.0 mm to the length dimension of the welding part formed by laser welding. The assembled power element 100 is inserted into a cylindrical part 12 provided at an upper part of a valve main body 10, and is fixed by a caulking part 12a formed by caulking-processing, thereby to reduce the size of the power element 100.
Figure imgaf001
EP12150529.1A 2011-03-22 2012-01-10 Expansion valve Active EP2503267B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011063003A JP5730630B2 (en) 2011-03-22 2011-03-22 Expansion valve

Publications (3)

Publication Number Publication Date
EP2503267A2 EP2503267A2 (en) 2012-09-26
EP2503267A3 true EP2503267A3 (en) 2014-03-12
EP2503267B1 EP2503267B1 (en) 2020-02-19

Family

ID=45445945

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12150529.1A Active EP2503267B1 (en) 2011-03-22 2012-01-10 Expansion valve

Country Status (3)

Country Link
EP (1) EP2503267B1 (en)
JP (1) JP5730630B2 (en)
CN (1) CN102692105B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105402960B (en) * 2014-09-09 2020-04-10 株式会社不二工机 Expansion valve
JP6596217B2 (en) * 2015-04-03 2019-10-23 株式会社不二工機 Caulking fixed power element and expansion valve using the same
JP6569061B2 (en) * 2015-08-19 2019-09-04 株式会社テージーケー Control valve
JP6578171B2 (en) * 2015-09-17 2019-09-18 株式会社不二工機 Production method of expansion valve
CN105485982B (en) * 2015-12-30 2018-04-06 浙江新劲空调设备有限公司 Vibration and noise reducing expansion valve
JP6667753B2 (en) * 2016-03-23 2020-03-18 株式会社テージーケー Expansion valve
JP6846875B2 (en) * 2016-04-26 2021-03-24 株式会社不二工機 Expansion valve
KR102237210B1 (en) * 2017-04-13 2021-04-07 쯔지앙 산후아 오토모티브 컴포넌츠 컴퍼니 리미티드 Thermal expansion valve
CN111720559B (en) * 2019-03-20 2022-09-23 浙江三花汽车零部件有限公司 Control valve and air conditioning system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006105474A (en) * 2004-10-05 2006-04-20 Tgk Co Ltd Temperature differential type expansion valve
JP2007032862A (en) * 2005-07-22 2007-02-08 Tgk Co Ltd Expansion valve

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3321713B2 (en) * 1991-10-17 2002-09-09 イートン コーポレーション Thermal response expansion valve
JPH0632973U (en) * 1992-10-01 1994-04-28 株式会社ゼクセル Expansion valve power element
JPH0979703A (en) * 1995-09-08 1997-03-28 Denso Corp Thermo-sensitive expansion valve
JP3785229B2 (en) * 1996-09-12 2006-06-14 株式会社不二工機 Expansion valve
JP3392319B2 (en) * 1997-05-16 2003-03-31 太平洋工業株式会社 Manufacturing method of temperature type expansion valve
JP2002267291A (en) * 2001-03-13 2002-09-18 Fuji Koki Corp Thermal expansion valve
AU2003286479A1 (en) * 2002-10-18 2004-05-04 Parker-Hannifin Corporation Refrigeration expansion valve with thermal mass power element
JP4303637B2 (en) * 2004-03-12 2009-07-29 株式会社テージーケー Control valve for variable capacity compressor
JP2007315727A (en) * 2006-05-29 2007-12-06 Tgk Co Ltd Expansion valve
JP5100136B2 (en) 2007-01-26 2012-12-19 株式会社不二工機 Expansion valve
JP2008215797A (en) * 2007-02-07 2008-09-18 Tgk Co Ltd Expansion valve
JP5231073B2 (en) * 2008-04-11 2013-07-10 三菱電機株式会社 Welded joint and manufacturing method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006105474A (en) * 2004-10-05 2006-04-20 Tgk Co Ltd Temperature differential type expansion valve
JP2007032862A (en) * 2005-07-22 2007-02-08 Tgk Co Ltd Expansion valve

Also Published As

Publication number Publication date
EP2503267B1 (en) 2020-02-19
JP5730630B2 (en) 2015-06-10
EP2503267A2 (en) 2012-09-26
CN102692105B (en) 2016-06-22
CN102692105A (en) 2012-09-26
JP2012197990A (en) 2012-10-18

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