EP1832822A3 - Expansion valve - Google Patents

Expansion valve Download PDF

Info

Publication number
EP1832822A3
EP1832822A3 EP07003767A EP07003767A EP1832822A3 EP 1832822 A3 EP1832822 A3 EP 1832822A3 EP 07003767 A EP07003767 A EP 07003767A EP 07003767 A EP07003767 A EP 07003767A EP 1832822 A3 EP1832822 A3 EP 1832822A3
Authority
EP
European Patent Office
Prior art keywords
expansion valve
refrigerant
temperature
compressor
low
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
EP07003767A
Other languages
German (de)
French (fr)
Other versions
EP1832822B1 (en
EP1832822A2 (en
Inventor
Hisatoshi Hirota
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 EP1832822A2 publication Critical patent/EP1832822A2/en
Publication of EP1832822A3 publication Critical patent/EP1832822A3/en
Application granted granted Critical
Publication of EP1832822B1 publication Critical patent/EP1832822B1/en
Expired - Fee Related 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
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • F25B41/32—Expansion valves having flow rate limiting means other than the valve member, e.g. having bypass orifices in the valve body
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/04—Refrigeration circuit bypassing means
    • F25B2400/0409—Refrigeration circuit bypassing means for the evaporator
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/04—Refrigeration circuit bypassing means
    • F25B2400/0411—Refrigeration circuit bypassing means for the expansion valve or capillary tube
    • 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
    • F25B2500/06—Damage
    • 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
    • F25B2500/08—Exceeding a certain temperature value in a refrigeration component or cycle

Abstract

A thermostatic expansion valve 3 is applied to a refrigeration cycle having an internal heat exchanger 5 for heat exchange between high-temperature refrigerant flowing from a condenser 2 to the expansion valve 3 and low-temperature refrigerant flowing from an evaporator 4 2 via the expansion valve 3 to a compressor. The expansion valve 3 comprises a bypass passage 3a or 3b for guiding refrigerant either from a high-pressure refrigerant inlet or a low-pressure refrigerant outlet to the downstream side of a temperature-sensing section, such that moist refrigerant is mixed with refrigerant whose degree of superheat is controlled by the expansion valve 3. This lowers the temperature of refrigerant that is drawn into the compressor 1.
EP07003767A 2006-03-07 2007-02-23 Expansion valve Expired - Fee Related EP1832822B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006060813A JP2007240041A (en) 2006-03-07 2006-03-07 Expansion valve

Publications (3)

Publication Number Publication Date
EP1832822A2 EP1832822A2 (en) 2007-09-12
EP1832822A3 true EP1832822A3 (en) 2008-01-23
EP1832822B1 EP1832822B1 (en) 2009-01-21

Family

ID=38121651

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07003767A Expired - Fee Related EP1832822B1 (en) 2006-03-07 2007-02-23 Expansion valve

Country Status (6)

Country Link
US (1) US20070209387A1 (en)
EP (1) EP1832822B1 (en)
JP (1) JP2007240041A (en)
KR (1) KR20070092118A (en)
CN (1) CN101033805A (en)
DE (1) DE602007000497D1 (en)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4569508B2 (en) * 2006-03-31 2010-10-27 株式会社デンソー Expansion valves used in supercritical and refrigeration cycles
FR2934039B1 (en) * 2008-07-18 2013-05-31 Valeo Systemes Thermiques IMPROVED AIR CONDITIONING LOOP FOR MOTOR VEHICLE
CN101684974B (en) * 2008-09-26 2011-04-13 王朝阳 Thermostatic expansion valve with bypass applying in air-conditioning system
JP2010121831A (en) * 2008-11-18 2010-06-03 Fuji Koki Corp Refrigerating cycle
DE102008060699A1 (en) * 2008-12-08 2010-06-10 Behr Gmbh & Co. Kg Evaporator for a refrigeration circuit
CN101900113B (en) * 2009-05-15 2013-10-30 艾默生环境优化技术有限公司 Compressor and oil-cooling system
US8590324B2 (en) 2009-05-15 2013-11-26 Emerson Climate Technologies, Inc. Compressor and oil-cooling system
JP5501670B2 (en) 2009-06-23 2014-05-28 株式会社不二工機 Diaphragm type fluid control valve
DE102010010298A1 (en) * 2010-03-04 2011-09-08 Voith Patent Gmbh Heat engine
FR2959004B1 (en) * 2010-04-16 2016-02-05 Valeo Systemes Thermiques THERMOPLASTIC RELIEF DEVICE AND AIR CONDITIONING LOOP COMPRISING SUCH A THERMOPLASTIC RELIEF DEVICE
CZ308054B6 (en) * 2010-04-16 2019-11-27 Hanon Systems Adapter for connecting two coaxially arranged pipes to a thermostatic expansion valve in an air conditioning system
KR101572574B1 (en) 2010-08-12 2015-12-01 한온시스템 주식회사 Expansion valve and air conditioner for vehicle having the same
JP5713312B2 (en) * 2010-10-28 2015-05-07 サンデン株式会社 Refrigeration cycle equipment
JP2012121361A (en) * 2010-12-06 2012-06-28 Tgk Co Ltd Vehicle air-conditioner
JP2012163281A (en) * 2011-02-08 2012-08-30 Sanden Corp Refrigeration cycle device
CN102221273A (en) * 2011-06-28 2011-10-19 浙江盾安人工环境股份有限公司 Thermostatic expansion valve for propane air-conditioning system
JP5445569B2 (en) * 2011-12-09 2014-03-19 株式会社デンソー Air conditioner for vehicles
DE102012224121A1 (en) * 2012-12-21 2014-06-26 Bayerische Motoren Werke Aktiengesellschaft Expansion valve for cooling circuit to cool batteries in vehicle, has first closure element closing/locking transit, bypass provided in first closure element, and second closure element closing transit and bypass and comprising portion
GB2527682B (en) * 2013-01-25 2019-05-08 Trane Int Inc Capacity modulating an expansion device of a HVAC system
JP6182363B2 (en) * 2013-06-07 2017-08-16 株式会社不二工機 Expansion valve
DE102013113221A1 (en) * 2013-11-29 2015-06-03 Denso Automotive Deutschland Gmbh Inner heat exchanger with variable heat transfer
JP6402314B2 (en) * 2014-12-02 2018-10-10 株式会社テージーケー Expansion valve
CN105588375A (en) * 2014-12-19 2016-05-18 海信科龙电器股份有限公司 Air conditioner circulating system and air conditioner
JP6446636B2 (en) * 2015-02-06 2019-01-09 株式会社テージーケー Expansion valve and its piping mounting structure
CN107615204B (en) * 2015-06-09 2020-09-08 株式会社电装 Pressure reducing valve
JP6569061B2 (en) * 2015-08-19 2019-09-04 株式会社テージーケー Control valve
CZ2016132A3 (en) * 2016-03-07 2017-08-09 Hanon Systems A system of two coaxial tubes with a pressure valve for the indoor heat exchanger and a method of cooling using such a system
US10197177B2 (en) * 2016-03-21 2019-02-05 Ingersoll-Rand Company Compressor thermal valve unit to route lubricant used in a compressor
JP6583134B2 (en) * 2016-05-06 2019-10-02 株式会社デンソー Refrigeration cycle equipment
GB2550921A (en) * 2016-05-31 2017-12-06 Eaton Ind Ip Gmbh & Co Kg Cooling system
JP6938273B2 (en) * 2017-08-10 2021-09-22 三菱重工サーマルシステムズ株式会社 Heat pump and its design method
CN111720584B (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
JP6929318B2 (en) * 2019-03-28 2021-09-01 東プレ株式会社 Refrigeration equipment and operation method of refrigeration equipment
JP2022012966A (en) * 2020-07-02 2022-01-18 日本サーモスタット株式会社 Relief valve and cooling circuit using the same
JP7403168B2 (en) * 2021-03-25 2023-12-22 株式会社不二工機 expansion valve
US20230288109A1 (en) * 2021-06-04 2023-09-14 Parker-Hannifin Corporation Bulbless expansion valve with integrated bypass check valve

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05196324A (en) * 1992-01-20 1993-08-06 Nippondenso Co Ltd Expansion valve for refrigerating cycle
US5490397A (en) * 1991-04-15 1996-02-13 Nippondenso Co., Ltd. Water removing device in refrigerating system
JPH0914495A (en) * 1995-06-28 1997-01-14 Mitsubishi Heavy Ind Ltd Block type expansion valve and air conditioner
JP2000028233A (en) * 1998-07-09 2000-01-28 Denso Corp Temperature type expansion valve
US6615599B1 (en) * 2002-06-26 2003-09-09 Delphi Technologies Inc. Thermostatic expansion valve and air conditioning system for low refrigerant charge
US20040003612A1 (en) * 2002-07-02 2004-01-08 Mahmoud Ghodbane HVAC system with post-shut down isolation and venting of evaporator using H-shaped valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5490397A (en) * 1991-04-15 1996-02-13 Nippondenso Co., Ltd. Water removing device in refrigerating system
JPH05196324A (en) * 1992-01-20 1993-08-06 Nippondenso Co Ltd Expansion valve for refrigerating cycle
JPH0914495A (en) * 1995-06-28 1997-01-14 Mitsubishi Heavy Ind Ltd Block type expansion valve and air conditioner
JP2000028233A (en) * 1998-07-09 2000-01-28 Denso Corp Temperature type expansion valve
US6615599B1 (en) * 2002-06-26 2003-09-09 Delphi Technologies Inc. Thermostatic expansion valve and air conditioning system for low refrigerant charge
US20040003612A1 (en) * 2002-07-02 2004-01-08 Mahmoud Ghodbane HVAC system with post-shut down isolation and venting of evaporator using H-shaped valve

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "Refrigerant bypass mechanism", RESEARCH DISCLOSURE, MASON PUBLICATIONS, HAMPSHIRE, GB, vol. 483, no. 146, July 2004 (2004-07-01), XP007134132, ISSN: 0374-4353 *
ELBEL S ET AL: "Flash gas bypass for improving the performance of transcritical R744 systems that use microchannel evaporators", INTERNATIONAL JOURNAL OF REFRIGERATION, OXFORD, GB, vol. 27, no. 7, November 2004 (2004-11-01), pages 724 - 735, XP004605275, ISSN: 0140-7007 *

Also Published As

Publication number Publication date
KR20070092118A (en) 2007-09-12
US20070209387A1 (en) 2007-09-13
JP2007240041A (en) 2007-09-20
DE602007000497D1 (en) 2009-03-12
EP1832822B1 (en) 2009-01-21
EP1832822A2 (en) 2007-09-12
CN101033805A (en) 2007-09-12

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