EP1512926A3 - Expansion device - Google Patents

Expansion device Download PDF

Info

Publication number
EP1512926A3
EP1512926A3 EP04021240A EP04021240A EP1512926A3 EP 1512926 A3 EP1512926 A3 EP 1512926A3 EP 04021240 A EP04021240 A EP 04021240A EP 04021240 A EP04021240 A EP 04021240A EP 1512926 A3 EP1512926 A3 EP 1512926A3
Authority
EP
European Patent Office
Prior art keywords
pressure
expansion device
spring
refrigerant
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Withdrawn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
EP04021240A
Other languages
German (de)
French (fr)
Other versions
EP1512926A2 (en
Inventor
Hisatoshi Hirota
Katsumi Koyama
Tokumi Tsugawa
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 EP1512926A2 publication Critical patent/EP1512926A2/en
Publication of EP1512926A3 publication Critical patent/EP1512926A3/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Withdrawn legal-status Critical Current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
    • 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
    • F25B2341/062—Capillary expansion valves

Abstract

An expansion device 1 allows to cancel part of the refrigerant pressure by a pressure-cancelling structure. Due to the pressure on a valve-closing pressure-receiving surface 27, the elastic force of a spring 18 is reduced. The spring 18 has a small size. The expansion device 1 is compact. When a differential pressure is equal or higher than a predetermined value, a relief mechanism relieves refrigerant from the upstream side through a valve element 20 into a separate passage, to prevent an abnormal inside pressure rise.
EP04021240A 2003-09-08 2004-09-07 Expansion device Withdrawn EP1512926A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2003315493 2003-09-08
JP2003315493 2003-09-08
JP2004070947A JP2005106452A (en) 2003-09-08 2004-03-12 Expansion device
JP2004070947 2004-03-12

Publications (2)

Publication Number Publication Date
EP1512926A2 EP1512926A2 (en) 2005-03-09
EP1512926A3 true EP1512926A3 (en) 2008-03-19

Family

ID=34138007

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04021240A Withdrawn EP1512926A3 (en) 2003-09-08 2004-09-07 Expansion device

Country Status (3)

Country Link
US (1) US20050050916A1 (en)
EP (1) EP1512926A3 (en)
JP (1) JP2005106452A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009060465A2 (en) * 2007-07-18 2009-05-14 Vijay Appa Kasar Energy saving expansion device for refrigeration & other industries
WO2011013676A1 (en) * 2009-07-31 2011-02-03 株式会社堀場製作所 Exhaust gas sampling and analysis system
DE102012206189A1 (en) * 2012-04-16 2013-10-17 Robert Bosch Gmbh Electric machine and method for operating an electrical machine
JP6216681B2 (en) * 2014-04-21 2017-10-18 株式会社鷺宮製作所 Aperture device
JP5971871B2 (en) 2014-04-21 2016-08-17 株式会社鷺宮製作所 Aperture device
GB201411619D0 (en) * 2014-06-30 2014-08-13 British American Tobacco Co Flow control device
JP6031078B2 (en) * 2014-11-12 2016-11-24 株式会社鷺宮製作所 Throttle device and refrigeration cycle system including the same
JP6364381B2 (en) * 2015-06-23 2018-07-25 株式会社鷺宮製作所 Throttle device and refrigeration cycle system including the same
JP6356644B2 (en) * 2015-09-04 2018-07-11 株式会社鷺宮製作所 Throttle device and refrigeration cycle
KR102481659B1 (en) * 2018-07-23 2022-12-27 한온시스템 주식회사 Pressure reducing valve
US20200318742A1 (en) * 2019-04-02 2020-10-08 Carrier Corporation Multi-port variable expansion plunger valve
WO2020262244A1 (en) * 2019-06-26 2020-12-30 日立オートモティブシステムズ株式会社 Differential pressure valve

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54102627A (en) * 1978-01-28 1979-08-13 Shizuo Sezaki Flow control valve for coolant gas in such as cooler
JPS54105327A (en) * 1978-02-04 1979-08-18 Shizuo Sezaki Flow rate control valve gear of refrigerant gas in air conditioner* etc*
JPS55165460A (en) * 1979-06-07 1980-12-23 Shizuo Sezaki Refrigerant gas flow control valve for cooler and others
JPH11257802A (en) * 1998-03-13 1999-09-24 Calsonic Corp Cooler for automobile
EP1167899A2 (en) * 2000-06-21 2002-01-02 TGK Co., Ltd. Supercooling degree control type expansion valve

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2781059A (en) * 1954-01-08 1957-02-12 Gen Motors Corp Flow control device
US4009592A (en) * 1976-02-09 1977-03-01 Ford Motor Company Multiple stage expansion valve for an automotive air conditioning system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54102627A (en) * 1978-01-28 1979-08-13 Shizuo Sezaki Flow control valve for coolant gas in such as cooler
JPS54105327A (en) * 1978-02-04 1979-08-18 Shizuo Sezaki Flow rate control valve gear of refrigerant gas in air conditioner* etc*
JPS55165460A (en) * 1979-06-07 1980-12-23 Shizuo Sezaki Refrigerant gas flow control valve for cooler and others
JPH11257802A (en) * 1998-03-13 1999-09-24 Calsonic Corp Cooler for automobile
EP1167899A2 (en) * 2000-06-21 2002-01-02 TGK Co., Ltd. Supercooling degree control type expansion valve

Also Published As

Publication number Publication date
US20050050916A1 (en) 2005-03-10
JP2005106452A (en) 2005-04-21
EP1512926A2 (en) 2005-03-09

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