GB1379459A - Thermostatic expansion valves - Google Patents

Thermostatic expansion valves

Info

Publication number
GB1379459A
GB1379459A GB981272A GB981272A GB1379459A GB 1379459 A GB1379459 A GB 1379459A GB 981272 A GB981272 A GB 981272A GB 981272 A GB981272 A GB 981272A GB 1379459 A GB1379459 A GB 1379459A
Authority
GB
United Kingdom
Prior art keywords
valve
pressure
diaphragm
push
collar
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.)
Expired
Application number
GB981272A
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.)
Controls Company of America
Original Assignee
Controls Company of America
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 Controls Company of America filed Critical Controls Company of America
Publication of GB1379459A publication Critical patent/GB1379459A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
    • F16K17/19—Equalising valves predominantly for tanks
    • 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

Landscapes

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

Abstract

1379459 Valves CONTROLS CO OF AMERICA 2 March 1972 [29 March 1971] 9812/72 Heading F2V A thermostatic expansion valve for use in refrigeration systems having means for rapid equalization of the pressure in the high and low pressure sides of the system comprises a body 10 provided with inlet port 12 and outlet port 14, a valve 16 biased by a spring 20 against a seat 18 and actuated through push-pins 56 and collar 28, 30 by a diaphragm 40 which has one side subject to pressure which is a function of evaporator outlet temperature and its other side subject to pressure in the valve outlet. The said means constitutes a by-pass valve which comprises ports 38 in a chamber 36 in the valve in communication with the inlet port which are controlled by the collar 28, 30 normally held closed by the diaphragm acting through the push pins 56. The by-pass valve is operated when the valve 16 abuts the seat 18 and the evaporator warms up after compressor shutdown sufficient for the pressures across the diaphragm to become balanced and the chamber pressure to open the ports. The pressure is transmitted to the diaphragm via a thermal-sensing bulb 50, and capillary tube 52. In an alternative embodiment the collar is dispensed with and the ports are closed by the push-pins which act as closure members. Other valve means, such as a ball, interposed between the push pin and the port, are suggested.
GB981272A 1971-03-29 1972-03-02 Thermostatic expansion valves Expired GB1379459A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12897771A 1971-03-29 1971-03-29

Publications (1)

Publication Number Publication Date
GB1379459A true GB1379459A (en) 1975-01-02

Family

ID=22437896

Family Applications (1)

Application Number Title Priority Date Filing Date
GB981272A Expired GB1379459A (en) 1971-03-29 1972-03-02 Thermostatic expansion valves

Country Status (7)

Country Link
US (1) US3699778A (en)
CA (1) CA935353A (en)
DE (1) DE2215150C3 (en)
ES (1) ES401271A1 (en)
FR (1) FR2131662A5 (en)
GB (1) GB1379459A (en)
IT (1) IT950784B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4236669A (en) * 1978-12-18 1980-12-02 Borg-Warner Corporation Thermostatic expansion valve with lead-lag compensation
US4750334A (en) * 1987-03-26 1988-06-14 Sporlan Valve Company Balanced thermostatic expansion valve for refrigeration systems
US4852364A (en) * 1987-10-23 1989-08-01 Sporlan Valve Company Expansion and check valve combination
DE3829101A1 (en) * 1988-08-27 1990-03-01 Sueddeutsche Kuehler Behr THERMOSTATIC EXPANSION VALVE
US5251459A (en) * 1991-05-28 1993-10-12 Emerson Electric Co. Thermal expansion valve with internal by-pass and check valve
US5423480A (en) * 1992-12-18 1995-06-13 Sporlan Valve Company Dual capacity thermal expansion valve
US5277364A (en) * 1992-12-18 1994-01-11 Sporlan Valve Company Dual capacity thermal expansion valve
JP3397862B2 (en) * 1993-11-30 2003-04-21 株式会社デンソー Expansion valve with solenoid valve
JP2000016068A (en) * 1998-07-08 2000-01-18 Sanden Corp Automatic temperature expansion valve
DE19837556C1 (en) * 1998-08-19 2000-03-09 Danfoss As Thermostatic expansion valve for refrigeration medium; has pressure surface devices co-operating with opposing connections in closed position of valve element
US6418741B1 (en) 2000-05-03 2002-07-16 Parker Hannifin Corporation Expansion/check valve assembly including a reverse flow rate adjustment device
WO2004036125A2 (en) * 2002-10-18 2004-04-29 Parker-Hannifin Corporation Refrigeration expansion valve with thermal mass power element
KR100457569B1 (en) * 2002-11-22 2004-11-18 엘지전자 주식회사 a linear expansion valve's control method for a heat pump system
US6868684B2 (en) * 2002-12-17 2005-03-22 Parker-Hannifin Corporation Block valve with integral refrigerant lines
JP4706372B2 (en) * 2005-07-28 2011-06-22 株式会社デンソー Thermal expansion valve
WO2007053801A2 (en) * 2005-10-20 2007-05-10 Earthlinked Technologies, Inc. Refrigerant fluid flow control device and method
US7707844B2 (en) * 2006-02-17 2010-05-04 Emerson Electric Co. Thermostatic expansion valve with bypass passage
CN103339453B (en) * 2010-11-30 2016-03-16 丹佛斯公司 There is the expansion valve of variable degree
US9398722B1 (en) * 2013-09-03 2016-07-19 Mainstream Engineering Corporation Cold plate with insertable integrated thermostatic expansion device and sensing element

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2967403A (en) * 1957-12-23 1961-01-10 Sporlan Valve Co Constant pressure expansion valve

Also Published As

Publication number Publication date
ES401271A1 (en) 1975-02-16
DE2215150B2 (en) 1980-03-20
IT950784B (en) 1973-06-20
FR2131662A5 (en) 1972-11-10
CA935353A (en) 1973-10-16
US3699778A (en) 1972-10-24
DE2215150C3 (en) 1980-11-06
DE2215150A1 (en) 1972-10-05

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee