DD118167A5 - - Google Patents

Info

Publication number
DD118167A5
DD118167A5 DD186556A DD18655675A DD118167A5 DD 118167 A5 DD118167 A5 DD 118167A5 DD 186556 A DD186556 A DD 186556A DD 18655675 A DD18655675 A DD 18655675A DD 118167 A5 DD118167 A5 DD 118167A5
Authority
DD
German Democratic Republic
Application number
DD186556A
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 filed Critical
Publication of DD118167A5 publication Critical patent/DD118167A5/xx

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)
DD186556A 1974-06-12 1975-06-10 DD118167A5 (enrdf_load_stackoverflow)

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
DD118167A5 true DD118167A5 (enrdf_load_stackoverflow) 1976-02-12

Family

ID=23900313

Family Applications (1)

Application Number Title Priority Date Filing Date
DD186556A DD118167A5 (enrdf_load_stackoverflow) 1974-06-12 1975-06-10

Country Status (11)

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

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
DK263475A (da) 1975-12-13
ES435692A1 (es) 1976-12-01
SE7504113L (sv) 1975-12-15
IT1033195B (it) 1979-07-10
CA998251A (en) 1976-10-12
FR2280032B2 (enrdf_load_stackoverflow) 1979-01-19
GB1457732A (en) 1976-12-08
DE2513455A1 (de) 1976-01-02
BE827216A (fr) 1975-07-16
BR7503691A (pt) 1976-06-29
FR2280032A2 (fr) 1976-02-20

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