EP1666817A3 - Pressure control valve - Google Patents

Pressure control valve Download PDF

Info

Publication number
EP1666817A3
EP1666817A3 EP05026063A EP05026063A EP1666817A3 EP 1666817 A3 EP1666817 A3 EP 1666817A3 EP 05026063 A EP05026063 A EP 05026063A EP 05026063 A EP05026063 A EP 05026063A EP 1666817 A3 EP1666817 A3 EP 1666817A3
Authority
EP
European Patent Office
Prior art keywords
refrigerant
temperature
gas cooler
outlet side
sensing
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Withdrawn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
EP05026063A
Other languages
German (de)
French (fr)
Other versions
EP1666817A2 (en
Inventor
Sadatake Ise
Shu Yanagisawa
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
Denso Corp
Original Assignee
Fujikoki Corp
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
Priority claimed from JP2004348850A external-priority patent/JP4364114B2/en
Application filed by Fujikoki Corp, Denso Corp filed Critical Fujikoki Corp
Publication of EP1666817A2 publication Critical patent/EP1666817A2/en
Publication of EP1666817A3 publication Critical patent/EP1666817A3/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Withdrawn legal-status Critical Current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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—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
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • 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
    • 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
    • F25B2341/068—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

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

Abstract

A pressure control valve to be integrated into a steam-compression type refrigerating cycle (100) comprising a compressor (101) for circulating CO2 employed as a refrigerant, a gas cooler (102) for cooling the refrigerant compressed by the compressor, an evaporator (104) into which the refrigerant is designed to be introduced from the gas cooler, and an internal heat exchanger (103) for performing heat exchange between the refrigerant on the outlet side of the evaporator and the refrigerant on the outlet side of the gas cooler; the pressure control valve being constructed to pass the refrigerant to the evaporator after adjusting, depending on the temperature of the refrigerant on the outlet side of the gas cooler, the pressure of the refrigerant introduced therein via the internal heat exchanger from the gas cooler. This pressure control valve comprises: a temperature-sensing cylinder (30) for sensing the temperature of refrigerant on the outlet side of the gas cooler; a temperature-sensing pressure responding element (20) which is provided with a temperature-sensing chamber (25) communicated through a capillary tube (32) with the temperature-sensing cylinder and designed to drive a valve body (15) into a closed or open state in response to fluctuations of inner pressure of the temperature-sensing chamber; and a valve main body (10A) attached integrally to the pressure responding element; wherein the temperature-sensing cylinder and the temperature-sensing chamber are filled with CO2 at a predetermined density and also with a bulking quantity of an inert gas, thereby enabling to adjust the pressure of refrigerant on the outlet side of the gas cooler in order to secure a maximum coefficient of performance relative to the temperature of refrigerant on the outlet side of the gas cooler.
EP05026063A 2004-12-01 2005-11-30 Pressure control valve Withdrawn EP1666817A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004348889 2004-12-01
JP2004348850A JP4364114B2 (en) 2004-12-01 2004-12-01 Pressure control valve

Publications (2)

Publication Number Publication Date
EP1666817A2 EP1666817A2 (en) 2006-06-07
EP1666817A3 true EP1666817A3 (en) 2007-01-17

Family

ID=35788423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05026063A Withdrawn EP1666817A3 (en) 2004-12-01 2005-11-30 Pressure control valve

Country Status (3)

Country Link
US (1) US20060117774A1 (en)
EP (1) EP1666817A3 (en)
KR (1) KR20060061258A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1857747A1 (en) * 2005-02-24 2007-11-21 Denso Corporation Pressure control valve
FR2909752B1 (en) 2006-12-08 2012-12-21 Valeo Systemes Thermiques RELAXATION BODY ASSOCIATING TWO TEMPERATURE SENSORS OF A REFRIGERANT FLUID WHICH ARE INTENDED TO BE RESPECTIVELY PLACED INTO AND OUT OF A GAS COOLER.
JP5501670B2 (en) * 2009-06-23 2014-05-28 株式会社不二工機 Diaphragm type fluid control valve
JP6078219B2 (en) * 2011-01-31 2017-02-08 株式会社不二工機 Expansion valve
JP6142181B2 (en) * 2013-03-12 2017-06-07 株式会社テージーケー Expansion valve and anti-vibration spring
JP6327401B2 (en) * 2015-06-09 2018-05-23 株式会社デンソー Pressure reducing valve
CN110940107B (en) * 2019-11-22 2021-09-24 珠海格力节能环保制冷技术研究中心有限公司 Air conditioning system
CN117108539B (en) * 2023-10-18 2024-01-02 江苏江杭石化工程有限公司 Independent protection type MVR evaporation balance system

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB618565A (en) * 1946-11-05 1949-02-23 Frigidaire Ltd Improvements relating to refrigeration apparatus
US3822563A (en) * 1973-04-25 1974-07-09 Controls Co Of America Refrigeration system incorporating temperature responsive wax element valve controlling evaporator outlet temperature
EP0156707A1 (en) * 1984-03-06 1985-10-02 Collado, François Air conditioning plant using a heat pump with a static exterior heat exchanger and with dry vapour regulation by automatically changing the rate of flow through the expansion valve
US5490397A (en) * 1991-04-15 1996-02-13 Nippondenso Co., Ltd. Water removing device in refrigerating system
JPH09269163A (en) * 1996-04-01 1997-10-14 Fuji Koki:Kk Expansion valve
JPH10170105A (en) * 1996-12-05 1998-06-26 Tgk Co Ltd Expansion valve
EP0971184A2 (en) * 1998-07-07 2000-01-12 Denso Corporation Pressure control valve
EP1209426A1 (en) * 2000-11-21 2002-05-29 TGK Co., Ltd. Expansion valve
EP1275916A2 (en) * 2001-07-12 2003-01-15 Fujikoki Corporation Expansion valve
EP1302733A1 (en) * 2001-10-10 2003-04-16 TGK CO., Ltd. Expansion valve
EP1308660A2 (en) * 2001-10-30 2003-05-07 TGK Co., Ltd. Expansion valve

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3427885A (en) * 1966-12-23 1969-02-18 Whittaker Corp Differential pressure transducer
JP2875754B2 (en) * 1994-04-15 1999-03-31 小倉クラッチ株式会社 Armature assembly of electromagnetic coupling device
JP3858297B2 (en) * 1996-01-25 2006-12-13 株式会社デンソー Pressure control valve and vapor compression refrigeration cycle
US5921761A (en) * 1997-04-17 1999-07-13 Copeland Corporation Scroll machine with discharge duct
DE19852127B4 (en) * 1998-11-12 2008-09-11 Behr Gmbh & Co. Kg Expansion member and usable valve unit
US6334324B1 (en) * 1998-11-20 2002-01-01 Zexel Valeo Climate Control Corporation Expansion device
JP4006861B2 (en) * 1998-12-09 2007-11-14 株式会社デンソー Integrated heat exchanger
GB2345745B (en) * 1999-01-16 2003-03-05 Oxford Magnet Tech Improvements in or relating to suspension systems
US6139727A (en) * 1999-03-02 2000-10-31 Anthony Mfg. Corp. Self-cleaning water filter
JP2000346472A (en) * 1999-06-08 2000-12-15 Mitsubishi Heavy Ind Ltd Supercritical steam compression cycle
JP2001081157A (en) 1999-09-20 2001-03-27 Nippon Kayaku Co Ltd Epoxy resin composition for sealing semiconductor and semiconductor device
EP1589301B1 (en) * 2000-03-15 2017-06-14 Denso Corporation Ejector cycle system with critical refrigerant pressure
JP2002054860A (en) * 2000-08-10 2002-02-20 Fuji Koki Corp Thermostatic expansion valve
JP3978395B2 (en) * 2002-01-23 2007-09-19 愛三工業株式会社 Flow control valve
JP4034580B2 (en) * 2002-03-06 2008-01-16 株式会社不二工機 Pressure control valve
JP4041334B2 (en) * 2002-04-08 2008-01-30 株式会社不二工機 Expansion valve and refrigeration cycle
US6626000B1 (en) * 2002-10-30 2003-09-30 Visteon Global Technologies, Inc. Method and system for electronically controlled high side pressure regulation in a vapor compression cycle
JP2006266660A (en) * 2004-11-19 2006-10-05 Tgk Co Ltd Expansion device

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB618565A (en) * 1946-11-05 1949-02-23 Frigidaire Ltd Improvements relating to refrigeration apparatus
US3822563A (en) * 1973-04-25 1974-07-09 Controls Co Of America Refrigeration system incorporating temperature responsive wax element valve controlling evaporator outlet temperature
EP0156707A1 (en) * 1984-03-06 1985-10-02 Collado, François Air conditioning plant using a heat pump with a static exterior heat exchanger and with dry vapour regulation by automatically changing the rate of flow through the expansion valve
US5490397A (en) * 1991-04-15 1996-02-13 Nippondenso Co., Ltd. Water removing device in refrigerating system
JPH09269163A (en) * 1996-04-01 1997-10-14 Fuji Koki:Kk Expansion valve
JPH10170105A (en) * 1996-12-05 1998-06-26 Tgk Co Ltd Expansion valve
EP0971184A2 (en) * 1998-07-07 2000-01-12 Denso Corporation Pressure control valve
EP1209426A1 (en) * 2000-11-21 2002-05-29 TGK Co., Ltd. Expansion valve
EP1275916A2 (en) * 2001-07-12 2003-01-15 Fujikoki Corporation Expansion valve
EP1302733A1 (en) * 2001-10-10 2003-04-16 TGK CO., Ltd. Expansion valve
EP1308660A2 (en) * 2001-10-30 2003-05-07 TGK Co., Ltd. Expansion valve

Also Published As

Publication number Publication date
KR20060061258A (en) 2006-06-07
US20060117774A1 (en) 2006-06-08
EP1666817A2 (en) 2006-06-07

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Inventor name: KAKEHASHI, NOBUHARU

Inventor name: OHTA, HIROMI

Inventor name: YANAGISAWA, SHU

Inventor name: ISE, SADATAKE

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