IT1033195B - Dispositivo per la protezione contro ilacongelamento in un impianto con pompa di calore - Google Patents

Dispositivo per la protezione contro ilacongelamento in un impianto con pompa di calore

Info

Publication number
IT1033195B
IT1033195B IT20658/75A IT2065875A IT1033195B IT 1033195 B IT1033195 B IT 1033195B IT 20658/75 A IT20658/75 A IT 20658/75A IT 2065875 A IT2065875 A IT 2065875A IT 1033195 B IT1033195 B IT 1033195B
Authority
IT
Italy
Prior art keywords
heat pump
protection against
against freezing
freezing
protection
Prior art date
Application number
IT20658/75A
Other languages
English (en)
Italian (it)
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
Application granted granted Critical
Publication of IT1033195B publication Critical patent/IT1033195B/it

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)
IT20658/75A 1974-06-12 1975-02-25 Dispositivo per la protezione contro ilacongelamento in un impianto con pompa di calore IT1033195B (it)

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
IT1033195B true IT1033195B (it) 1979-07-10

Family

ID=23900313

Family Applications (1)

Application Number Title Priority Date Filing Date
IT20658/75A IT1033195B (it) 1974-06-12 1975-02-25 Dispositivo per la protezione contro ilacongelamento in un impianto con pompa di calore

Country Status (11)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1214855B (it) * 1984-03-13 1990-01-18 Raif Spa Circuito refrigerante per il trattamento di liquidi, utilizzante un evaporatore-scambiatore a elementi concentrici entro i quali i rispettivi fluidi si muovono in senso contrario uno all'altro, nel modo detto controcorrente.

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
SE7504113L (sv) 1975-12-15
DD118167A5 (fr) 1976-02-12
FR2280032B2 (fr) 1979-01-19
ES435692A1 (es) 1976-12-01
FR2280032A2 (fr) 1976-02-20
DE2513455A1 (de) 1976-01-02
BE827216A (fr) 1975-07-16
GB1457732A (en) 1976-12-08
BR7503691A (pt) 1976-06-29
DK263475A (da) 1975-12-13
CA998251A (en) 1976-10-12

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