SE7504113L - FREEZE PROTECTION DEVICE FOR HEAT PUMP SYSTEM - Google Patents

FREEZE PROTECTION DEVICE FOR HEAT PUMP SYSTEM

Info

Publication number
SE7504113L
SE7504113L SE7504113A SE7504113A SE7504113L SE 7504113 L SE7504113 L SE 7504113L SE 7504113 A SE7504113 A SE 7504113A SE 7504113 A SE7504113 A SE 7504113A SE 7504113 L SE7504113 L SE 7504113L
Authority
SE
Sweden
Prior art keywords
heat pump
protection device
pump system
freeze protection
heat exchanger
Prior art date
Application number
SE7504113A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
S W Trelease
Original Assignee
American Air Filter 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
Priority claimed from US05/478,530 external-priority patent/US4171621A/en
Application filed by American Air Filter Co filed Critical American Air Filter Co
Publication of SE7504113L publication Critical patent/SE7504113L/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/001—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems in which the air treatment in the central station takes place by means of a heat-pump or by means of a reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

1457732 Space heating and cooling systems; refrigerating AMERICAN AIR FILTER CO Inc 16 May 1975 [12 June 1974] 20953/75 Addition to 1457433 Headings F4U and F4H A space heating and cooling system as described in Specification 1,457,433 is modified in that the refrigerant/water heat exchanger 8 of each reversible refrigeration circuit is a coil-incoil heat exchanger.
SE7504113A 1974-06-12 1975-04-10 FREEZE PROTECTION DEVICE FOR HEAT PUMP SYSTEM SE7504113L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/478,530 US4171621A (en) 1973-03-21 1974-06-12 Freeze protection device in heat pump system

Publications (1)

Publication Number Publication Date
SE7504113L true SE7504113L (en) 1975-12-15

Family

ID=23900313

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7504113A SE7504113L (en) 1974-06-12 1975-04-10 FREEZE PROTECTION DEVICE FOR HEAT PUMP SYSTEM

Country Status (11)

Country Link
BE (1) BE827216A (en)
BR (1) BR7503691A (en)
CA (1) CA998251A (en)
DD (1) DD118167A5 (en)
DE (1) DE2513455A1 (en)
DK (1) DK263475A (en)
ES (1) ES435692A1 (en)
FR (1) FR2280032A2 (en)
GB (1) GB1457732A (en)
IT (1) IT1033195B (en)
SE (1) SE7504113L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1214855B (en) * 1984-03-13 1990-01-18 Raif Spa REFRIGERANT CIRCUIT FOR THE TREATMENT OF LIQUIDS, USING A CONCENTRIC ELEMENT EVAPORATOR-EXCHANGER WITHIN WHICH THE FLUID RESPECTIVES MOVE IN THE OPPOSITE SENSE TO THE OTHER, IN THE ABOVE-CURRENT WAY.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2136813A (en) * 1935-09-12 1938-11-15 Dewey H Dolison Liquid cooler control
US3404728A (en) * 1966-04-08 1968-10-08 Singer Co Air conditioning system
GB1307604A (en) * 1970-03-05 1973-02-21 Temperature Ltd Heat pumps units

Also Published As

Publication number Publication date
CA998251A (en) 1976-10-12
FR2280032B2 (en) 1979-01-19
ES435692A1 (en) 1976-12-01
DK263475A (en) 1975-12-13
DE2513455A1 (en) 1976-01-02
IT1033195B (en) 1979-07-10
DD118167A5 (en) 1976-02-12
BE827216A (en) 1975-07-16
FR2280032A2 (en) 1976-02-20
GB1457732A (en) 1976-12-08
BR7503691A (en) 1976-06-29

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