GB1178271A - Improvements in or relating to Apparatus for Room Temperature Control. - Google Patents

Improvements in or relating to Apparatus for Room Temperature Control.

Info

Publication number
GB1178271A
GB1178271A GB653/67A GB65367A GB1178271A GB 1178271 A GB1178271 A GB 1178271A GB 653/67 A GB653/67 A GB 653/67A GB 65367 A GB65367 A GB 65367A GB 1178271 A GB1178271 A GB 1178271A
Authority
GB
United Kingdom
Prior art keywords
predetermined
cooling
cut
heating means
room temperature
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
GB653/67A
Inventor
Niels Thorkild Jensen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB653/67A priority Critical patent/GB1178271A/en
Publication of GB1178271A publication Critical patent/GB1178271A/en
Expired legal-status Critical Current

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
    • F24F11/00—Control or safety arrangements
    • 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
    • F24F11/88—Electrical aspects, e.g. circuits
    • 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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • 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
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

1,178,271. Ventilating. N. T. JENSEN. 5 Jan., 1967, No. 653/67. Heading F4V. [Also in Division G3] Apparatus for keeping the temperature of a room substantially within predetermined limits comprises both heating and cooling or ventilating means under the control of a single thermosensitive phial and is arranged so that the heating means is rendered operative when the room temperature falls below a predetermined minimum value and is not cut off until the temperature rises a predetermined amount (say 1‹ C.) above that value, whereas the cooling means is rendered effective when the room temperature rises above a predetermined maximum value and is not cut off until the temperature falls a predetermined amount (say 1‹ C.) below the maximum value, means being provided for delaying the operation of the cooling means for a predetermined time after the heating means have been cut off and correspondingly delaying the operation of the heating means for a predetermined time after the cooling means have been cut off. As shown, a phial 11 controls an electrical contact device 12 which, through a change-over device 13 including a voltage amplifier 17, operates a relay 15 of which the contacts 14 may connect the contact device 12 either to a motor 6 which opens the valve 7 of the heating means 2, or to a motor 10 which opens a cooling or ventilating member 3 depending upon the polarity of the error signal. The amplifier 17 is provided with a time delay circuit such as a condenser 18 charged by the error signal through a regulatable resistance 19. Fig. 3 shows a graph of room temperature against time, the predetermined minimum and maximum values of temperature being in this instance 15‹ and 25‹ C. Thus, the heating means is operative over the period A-C and the cooling means over the period D-F and neither over the periods C-D and F-G. In the limit, the predetermined maximum and minimum values may be the same, say 20‹ C.
GB653/67A 1967-01-05 1967-01-05 Improvements in or relating to Apparatus for Room Temperature Control. Expired GB1178271A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB653/67A GB1178271A (en) 1967-01-05 1967-01-05 Improvements in or relating to Apparatus for Room Temperature Control.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB653/67A GB1178271A (en) 1967-01-05 1967-01-05 Improvements in or relating to Apparatus for Room Temperature Control.

Publications (1)

Publication Number Publication Date
GB1178271A true GB1178271A (en) 1970-01-21

Family

ID=9708141

Family Applications (1)

Application Number Title Priority Date Filing Date
GB653/67A Expired GB1178271A (en) 1967-01-05 1967-01-05 Improvements in or relating to Apparatus for Room Temperature Control.

Country Status (1)

Country Link
GB (1) GB1178271A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2310538A1 (en) * 1975-05-06 1976-12-03 Danfoss As THERMOSTATIC REGULATION DEVICE FOR AIR CONDITIONING SYSTEMS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2310538A1 (en) * 1975-05-06 1976-12-03 Danfoss As THERMOSTATIC REGULATION DEVICE FOR AIR CONDITIONING SYSTEMS

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