GB728628A - Improved expansion valve for refrigeration systems - Google Patents

Improved expansion valve for refrigeration systems

Info

Publication number
GB728628A
GB728628A GB11161/53A GB1116153A GB728628A GB 728628 A GB728628 A GB 728628A GB 11161/53 A GB11161/53 A GB 11161/53A GB 1116153 A GB1116153 A GB 1116153A GB 728628 A GB728628 A GB 728628A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
pressure
spring
valve
evaporator
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
GB11161/53A
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
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 Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of GB728628A publication Critical patent/GB728628A/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

728,628. Refrigerating. GENERAL MOTORS CORPORATION. April 23, 1953 [May 9, 1952], No. 11161./53. Class 29. [Also in Group XXIX] An expansion valve for refrigeration systems comprises a valve closure member 16 adjustably loaded by a spring 34 by which it is urged towards a seat 18 upon increase of pressure in the evaporator 123 communicated by a passage 47 to a spring-loaded diaphragm 48 which is connected by a pin 40 to the valve member, and a diaphragm 133 whose upper face is subject to the pressure of a volatile fluid so as to be responsive to the temperature at the outlet of the evaporator 'and which has a lost-motion connection 149, 151 with the diaphragm 48. The arrangement is such that the valve member is normally controlled solely by the pressure responsive diaphragm 48 but in the event of excessively low temperature at the outlet of the evaporator due to the presence of liquid refrigerant, the diaphragm 133 rises under the effect of a spring 153 and takes up the lost motion to increase the throttling afforded by the valve. An adjustable spring 155 acts on the upper side of the diaphragm 133, and the space between the diaphragms may be either evacuated or connected to a resilient bellows 137 outside the chamber so that the pressure in the latter varies with atmospheric pressure.
GB11161/53A 1952-05-09 1953-04-23 Improved expansion valve for refrigeration systems Expired GB728628A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US728628XA 1952-05-09 1952-05-09

Publications (1)

Publication Number Publication Date
GB728628A true GB728628A (en) 1955-04-20

Family

ID=22110198

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11161/53A Expired GB728628A (en) 1952-05-09 1953-04-23 Improved expansion valve for refrigeration systems

Country Status (1)

Country Link
GB (1) GB728628A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2233742A (en) * 1989-06-30 1991-01-16 Draegerwerk Ag Pressure reducer with a controlled flow shut-off device
CN111189265A (en) * 2018-11-15 2020-05-22 上海海立电器有限公司 Air suction supercharging structure and refrigerating system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2233742A (en) * 1989-06-30 1991-01-16 Draegerwerk Ag Pressure reducer with a controlled flow shut-off device
CN111189265A (en) * 2018-11-15 2020-05-22 上海海立电器有限公司 Air suction supercharging structure and refrigerating system
CN111189265B (en) * 2018-11-15 2021-07-06 上海海立电器有限公司 Air suction supercharging structure and refrigerating system

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