GB639710A - Improvements in apparatus for the control of expansion valves of refrigerators - Google Patents

Improvements in apparatus for the control of expansion valves of refrigerators

Info

Publication number
GB639710A
GB639710A GB32940/49A GB3294049A GB639710A GB 639710 A GB639710 A GB 639710A GB 32940/49 A GB32940/49 A GB 32940/49A GB 3294049 A GB3294049 A GB 3294049A GB 639710 A GB639710 A GB 639710A
Authority
GB
United Kingdom
Prior art keywords
thermostat
compressor
switch
bellows
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.)
Expired
Application number
GB32940/49A
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.)
J&E Hall Ltd
Original Assignee
J&E Hall 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 J&E Hall Ltd filed Critical J&E Hall Ltd
Priority to GB32940/49A priority Critical patent/GB639710A/en
Publication of GB639710A publication Critical patent/GB639710A/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
    • F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
    • 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
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
    • 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
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Temperature (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

639,710. Refrigerating; thermostats. HALL, Ltd., J. & E., and HALES, R. T. Nov. 7, 1947, No. 32940. Divided out of 639,683. [Classes 29 and 64(ii)] [Also in Groups XXXV and XXXVII] The electrically operated expansion valve 7 of a refrigerating plant is controlled by a switch 11 actuated by a thermostat 24 the bulb 27 of which is applied to the pipe 36 connecting the evaporator 2 to the compressor 1, the thermostat acting in opposition to the combined action of a spring 21 and a pressurestat 23 connected by a pipe 35 to the suction valve 3 of the compressor. The microswitch 11, of the type described in Specification 419,917, [Group XXXVII], is actuated by a bell crank lever 12 having a peg 18 resting against a collar 19 on a rod connecting the bellows 28 of the pressurestat and the thermostat. When the compressor 1 is started the suction pressure drops and the thermostat bellows forces the rod 20 upwardly closing the switch 11 to open the electromagnetic valve 7 supplying refrigerant to the evaporator 2. At a predetermined low temperature the pressure in the thermostat bellows is reduced sufficiently to open the switch and close the valve 7. The spring 21 is adjusted by a nut 22. Specifications 639,682 and 639,683, [both in Group XXXVII], also are referred to.
GB32940/49A 1947-11-07 1947-11-07 Improvements in apparatus for the control of expansion valves of refrigerators Expired GB639710A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB32940/49A GB639710A (en) 1947-11-07 1947-11-07 Improvements in apparatus for the control of expansion valves of refrigerators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32940/49A GB639710A (en) 1947-11-07 1947-11-07 Improvements in apparatus for the control of expansion valves of refrigerators

Publications (1)

Publication Number Publication Date
GB639710A true GB639710A (en) 1950-07-05

Family

ID=10346251

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32940/49A Expired GB639710A (en) 1947-11-07 1947-11-07 Improvements in apparatus for the control of expansion valves of refrigerators

Country Status (1)

Country Link
GB (1) GB639710A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4333317A (en) * 1980-08-04 1982-06-08 General Electric Company Superheat controller
CN103075849A (en) * 2013-02-26 2013-05-01 浙江新劲空调设备有限公司 Refrigerant throttling device with temperature and pressure monitoring function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4333317A (en) * 1980-08-04 1982-06-08 General Electric Company Superheat controller
CN103075849A (en) * 2013-02-26 2013-05-01 浙江新劲空调设备有限公司 Refrigerant throttling device with temperature and pressure monitoring function

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