GB1534700A - Thermostatic expansion valve - Google Patents

Thermostatic expansion valve

Info

Publication number
GB1534700A
GB1534700A GB50624/75A GB5062475A GB1534700A GB 1534700 A GB1534700 A GB 1534700A GB 50624/75 A GB50624/75 A GB 50624/75A GB 5062475 A GB5062475 A GB 5062475A GB 1534700 A GB1534700 A GB 1534700A
Authority
GB
United Kingdom
Prior art keywords
chamber
inlet
valve
diaphragm
outlet
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
GB50624/75A
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.)
Danfoss AS
Original Assignee
Danfoss AS
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 Danfoss AS filed Critical Danfoss AS
Publication of GB1534700A publication Critical patent/GB1534700A/en
Expired 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

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

1534700 Valves DANFOSS AS 10 Dec 1975 [16 Dec 1974] 50624/75 Heading F2V [Also in Division F4] In a thermostatic expansion valve 1, e.g. for controlling fluid flow from the condenser to the evaporator of a refrigeration system, a closure member 6, actuated by a diaphragm 14 in a chamber 17 which is connected to a temperature sensor via a capillary 18, is biased to the closed position by a spring 9 and, in use, by the pressure of fluid in the inlet 3 such that fluid flow through the valve is substantially independent of changes in the inlet pressure. As shown, a bellows 19 forms an enclosed chamber 22 separating the valve stem 7 from the diaphragm 14; the chamber 22 being in communication with the inlet 3 via a passage 24 or by the clearance between the valve stem and the guide. A chamber 23, formed between the bellows 19 and the diaphragm 14, can communicate with the outlet 5 or, via a separate inlet (30), Fig. 2, (not shown), with an evaporator outlet, to make the valve substantially independent of outlet pressure.
GB50624/75A 1974-12-16 1975-12-10 Thermostatic expansion valve Expired GB1534700A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742459485 DE2459485B2 (en) 1974-12-16 1974-12-16 THERMOSTATIC EXPANSION VALVE FOR REFRIGERATION SYSTEMS

Publications (1)

Publication Number Publication Date
GB1534700A true GB1534700A (en) 1978-12-06

Family

ID=5933567

Family Applications (1)

Application Number Title Priority Date Filing Date
GB50624/75A Expired GB1534700A (en) 1974-12-16 1975-12-10 Thermostatic expansion valve

Country Status (4)

Country Link
JP (1) JPS5186852A (en)
DE (1) DE2459485B2 (en)
DK (1) DK138089C (en)
GB (1) GB1534700A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE60673T1 (en) * 1986-08-22 1991-02-15 Siemens Ag VALVE FOR CONTROL OF A DEPRESSION OR OVERPRESSURE.
JPH01296064A (en) * 1988-05-23 1989-11-29 Fuji Koki Seisakusho:Kk Temperature expansion valve
JP3858297B2 (en) * 1996-01-25 2006-12-13 株式会社デンソー Pressure control valve and vapor compression refrigeration cycle
DE19647718C2 (en) * 1996-11-19 1998-09-24 Danfoss As Process for regulating a refrigeration system as well as refrigeration system and expansion valve

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4911099A (en) * 1972-05-26 1974-01-31

Also Published As

Publication number Publication date
JPS5186852A (en) 1976-07-29
DK570275A (en) 1976-06-17
DK138089B (en) 1978-07-10
DE2459485A1 (en) 1976-07-01
DK138089C (en) 1978-12-18
DE2459485B2 (en) 1976-12-02

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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