EP1691149A3 - Expansion valve for refrigerating cycle - Google Patents

Expansion valve for refrigerating cycle Download PDF

Info

Publication number
EP1691149A3
EP1691149A3 EP06000619A EP06000619A EP1691149A3 EP 1691149 A3 EP1691149 A3 EP 1691149A3 EP 06000619 A EP06000619 A EP 06000619A EP 06000619 A EP06000619 A EP 06000619A EP 1691149 A3 EP1691149 A3 EP 1691149A3
Authority
EP
European Patent Office
Prior art keywords
temperature
refrigerant
sensing
outlet side
valve
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.)
Withdrawn
Application number
EP06000619A
Other languages
German (de)
French (fr)
Other versions
EP1691149A2 (en
Inventor
Yoshinori Intellectual Property Dept. Murase
Yoshitaka Intellectual Property Dept. Tomatsu
Nobuharu Intellectual Property Dept. Kakehashi
Hiromi Intellectual Property Dept. Ohta
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.)
Denso Corp
Original Assignee
Denso 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 Denso Corp filed Critical Denso Corp
Publication of EP1691149A2 publication Critical patent/EP1691149A2/en
Publication of EP1691149A3 publication Critical patent/EP1691149A3/en
Withdrawn legal-status Critical Current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
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
    • F25B2309/061—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide with cycle highest pressure above the supercritical pressure
    • 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
    • F25B2341/063—Feed forward expansion 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
    • 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

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)

Abstract

An expansion valve for a refrigerating cycle, in which the body dimensions and the weight of the whole valve can be reduced and a reduction in cost can be achieved.
An expansion valve of the invention comprising a temperature-sensing portion arranged in a refrigerant passage leading to an evaporator from a gas cooler or an internal heat exchanger in a vapor compression type refrigerating cycle and varied in internal pressure according to a refrigerant temperature at an outlet side of the gas cooler or on an outlet side of the internal heat exchanger, a valve member that mechanically interlocks with a change in internal pressure of the temperature-sensing portion to adjust an opening degree of a valve port, and a body that accommodates therein the valve member, and wherein the body is provided with a flow passage, through which a refrigerant reduced in pressure by the valve member is led to the evaporator while a refrigerant temperature at the outlet side of the gas cooler or on the outlet side of the internal heat exchanger is transmitted to the temperature-sensing portion. Also, that density, at which a refrigerant is charged in a temperature-sensing body, is set in the range of about 200 kg/m3 to about 600 kg/m3. Further, a ratio of a temperature-sensing cylinder corresponding portion to the temperature-sensing body is made at least 60 %.
EP06000619A 2005-01-13 2006-01-12 Expansion valve for refrigerating cycle Withdrawn EP1691149A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005006344 2005-01-13
JP2005329466A JP2006220407A (en) 2005-01-13 2005-11-14 Expansion valve for refrigeration cycle

Publications (2)

Publication Number Publication Date
EP1691149A2 EP1691149A2 (en) 2006-08-16
EP1691149A3 true EP1691149A3 (en) 2007-10-10

Family

ID=36275098

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06000619A Withdrawn EP1691149A3 (en) 2005-01-13 2006-01-12 Expansion valve for refrigerating cycle

Country Status (3)

Country Link
US (1) US20060150650A1 (en)
EP (1) EP1691149A3 (en)
JP (1) JP2006220407A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4062129B2 (en) * 2003-03-05 2008-03-19 株式会社デンソー Vapor compression refrigerator
US20080251742A1 (en) * 2005-02-24 2008-10-16 Sadatake Ise Pressure Control Valve
JP2007139209A (en) * 2005-11-14 2007-06-07 Denso Corp Pressure control valve for refrigerating cycle
JP2007139208A (en) * 2005-11-14 2007-06-07 Denso Corp Expansion valve for refrigerating cycle
JP4569508B2 (en) 2006-03-31 2010-10-27 株式会社デンソー Expansion valves used in supercritical and refrigeration cycles
JP2007278563A (en) * 2006-04-04 2007-10-25 Denso Corp Pressure control valve
JP2008020141A (en) * 2006-07-13 2008-01-31 Denso Corp Pressure control valve
EP2535667B1 (en) * 2010-02-12 2018-09-26 Mitsubishi Electric Corporation Refrigeration cycle device
JP5754627B2 (en) * 2011-04-25 2015-07-29 株式会社大気社 Fluid cooling method and fluid cooling device
CN102809253B (en) * 2011-05-31 2015-06-24 郑州大学 Two-phase flow expansion machine
JP6478958B2 (en) * 2016-09-02 2019-03-06 株式会社不二工機 Control valve
KR102319331B1 (en) * 2021-05-17 2021-10-29 주식회사 우진이앤지 Cryogenic rapid refrigeration system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0786632A2 (en) * 1996-01-25 1997-07-30 Denso Corporation Refrigerating system with pressure control valve
JPH10170105A (en) * 1996-12-05 1998-06-26 Tgk Co Ltd Expansion valve
EP1059495A2 (en) * 1999-06-08 2000-12-13 Mitsubishi Heavy Industries, Ltd. Supercritical vapor compression cycle
JP2001324245A (en) * 2000-05-15 2001-11-22 Saginomiya Seisakusho Inc High pressure control valve for supercritical vapor compression freezing cycle
EP1343064A1 (en) * 2002-03-06 2003-09-10 Fujikoki Corporation Pressure control valve

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3687365A (en) * 1970-09-10 1972-08-29 Gen Electric Thermostatic flow controller
EP0513568B1 (en) * 1991-05-14 1997-01-29 DEUTSCHE CONTROLS GmbH Expansion valve
EP0892226B1 (en) * 1997-07-18 2005-09-14 Denso Corporation Pressure control valve for refrigerating system
JPH1163739A (en) * 1997-08-26 1999-03-05 Denso Corp Pressure control valve
JP4196450B2 (en) * 1997-11-06 2008-12-17 株式会社デンソー Supercritical refrigeration cycle
JPH11248272A (en) * 1998-01-05 1999-09-14 Denso Corp Supercritical refrigeration cycle
JP3820790B2 (en) * 1998-07-07 2006-09-13 株式会社デンソー Pressure control valve
JP2000016068A (en) * 1998-07-08 2000-01-18 Sanden Corp Automatic temperature expansion valve
JP2000193347A (en) 1998-12-24 2000-07-14 Denso Corp Pressure control valve
JP2000192025A (en) * 1998-12-25 2000-07-11 Sanden Corp Vapor compression refrigeration cycle
JP2000193397A (en) 1998-12-25 2000-07-14 Furukawa Co Ltd Tire protector for vehicle
JP4202505B2 (en) * 1999-01-11 2008-12-24 サンデン株式会社 Vapor compression refrigeration cycle
JP2001082835A (en) * 1999-09-13 2001-03-30 Denso Corp Pressure control valve
JP2002089979A (en) * 2000-09-14 2002-03-27 Zexel Valeo Climate Control Corp Refrigerating cycle and expansion valve employed therefor
DE10061545A1 (en) * 2000-12-11 2002-06-13 Behr Gmbh & Co Procedure for refrigerant level monitoring
JP4114471B2 (en) * 2002-12-06 2008-07-09 株式会社デンソー Refrigeration cycle equipment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0786632A2 (en) * 1996-01-25 1997-07-30 Denso Corporation Refrigerating system with pressure control valve
JPH10170105A (en) * 1996-12-05 1998-06-26 Tgk Co Ltd Expansion valve
EP1059495A2 (en) * 1999-06-08 2000-12-13 Mitsubishi Heavy Industries, Ltd. Supercritical vapor compression cycle
JP2001324245A (en) * 2000-05-15 2001-11-22 Saginomiya Seisakusho Inc High pressure control valve for supercritical vapor compression freezing cycle
EP1343064A1 (en) * 2002-03-06 2003-09-10 Fujikoki Corporation Pressure control valve

Also Published As

Publication number Publication date
EP1691149A2 (en) 2006-08-16
JP2006220407A (en) 2006-08-24
US20060150650A1 (en) 2006-07-13

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