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US2542763A - Device for improvement of heating, ventilating, and air conditioning plants - Google Patents

Device for improvement of heating, ventilating, and air conditioning plants Download PDF

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Publication number
US2542763A
US2542763A US692858A US69285846A US2542763A US 2542763 A US2542763 A US 2542763A US 692858 A US692858 A US 692858A US 69285846 A US69285846 A US 69285846A US 2542763 A US2542763 A US 2542763A
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US
United States
Prior art keywords
air
heating
air conditioning
room
ventilating
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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 - Lifetime
Application number
US692858A
Inventor
Frisk Nils Pontus Wilhelm
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.)
Svenska Flaktfabriken AB
Original Assignee
Svenska Flaktfabriken AB
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Publication date
Application filed by Svenska Flaktfabriken AB filed Critical Svenska Flaktfabriken AB
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Publication of US2542763A publication Critical patent/US2542763A/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air systems
    • 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
    • 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
    • F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air systems
    • F24F3/0442—Systems in which all treatment is given in the central station, i.e. all-air systems with volume control at a constant temperature

Definitions

  • FIG. 3 represents a vertical section of part of a treated room.
  • the radiator 21 is placed under the window and the Working desk 28 is placed in front of it.
  • the air duct 29 has its supply opening 30 .directed in such a way that the air jet reaches the person sitting before the desk, in the breathing zone.
  • the radiators 21 continue to supply heat to the room at about the normal rate so as to maintain the room at about the normal temperature.
  • thermostats 24, 25l are in the air duct rather than in the room, they do not respond to the room temperature, but merely control or regulate the temperature of the air admitted to the room. In fact where the radiators 21 are controlled by a room thermostat, they may even tend to increase the heat input of the room to compensate for the cool air introduced.
  • the invention is not limited to the examples above, but can be modified without abandoning its principle.
  • the supply of the air can be made directly into the locality without distribution by ducts.
  • An air conditioning unit can be connected to two different systems of ducts, one of which works in the normal way with constant temperature, whereas the other system realizes the intermittent cooling periods having its supplementary cooler which is started and stopped in the same way as described above for Figure 3.
  • An apparatus for air conditioning a room providing a plurality of stations therein comprising: an air supply means including a duct having a plurality of openings communicating with said stations to provide local temperature effects therein; heating means and cooling means in the air supply means; two thermostatic control means for the heating and cooling means in the air supply means for maintaining predetermined different temperatures of the air passed through the duct to said openings; a return duct connecting said room with the air supply means; a thermostatically controlled damper controlling admission of return air and fresh air to said supply means; and a time clock for alternately selectively rendering effective said heating and cooling means for intermittently forcing cool air for periods of short duration, and heated air at a normal rate, through said openings to said stations.
  • An apparatus for air conditioning a room providing a plurality of stations therein comprising: an air supply means including a duct having a plurality of openings communicating with said stations to provide local temperature eifects therein; heating means and cooling means in the air supplymeans; two thermostatic control means for the heating and cooling means in the air supply means for maintaining predetermined diiferent temperatures of the air passed through the duct to said openings; and a time clock for alternately selectively rendering effective said heating and cooling means for intermittently forcing cool air for periods of short duration, and heated air at a normal rate, through said openings to said stations.

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

Description

6 7 m ,m 2A m H A L I T m KGhMn .SHPE RMC Fmmm w WOrIE. n. PT .Nmd Nmoe Cl V .1 ORF RI DLA M I R 0 F E C I 1w 5D 9 l 2 .w F.
'JTM Afro/MEV cooling effect shall be perceptible in the living zone without having to pass through the whole locality and to cool it down, it is suitable to arrange the supply ducts for the air in the Way that is illustrated in Figure 3, which represents a vertical section of part of a treated room. The radiator 21 is placed under the window and the Working desk 28 is placed in front of it. The air duct 29 has its supply opening 30 .directed in such a way that the air jet reaches the person sitting before the desk, in the breathing zone. During the time cool air is being introduced into the room, the radiators 21 continue to supply heat to the room at about the normal rate so as to maintain the room at about the normal temperature. As the thermostats 24, 25l are in the air duct rather than in the room, they do not respond to the room temperature, but merely control or regulate the temperature of the air admitted to the room. In fact where the radiators 21 are controlled by a room thermostat, they may even tend to increase the heat input of the room to compensate for the cool air introduced.
The invention is not limited to the examples above, but can be modified without abandoning its principle. Thus the supply of the air can be made directly into the locality without distribution by ducts. An air conditioning unit can be connected to two different systems of ducts, one of which works in the normal way with constant temperature, whereas the other system realizes the intermittent cooling periods having its supplementary cooler which is started and stopped in the same way as described above for Figure 3.
Having now described my invention, what 1 claim as new, and desire to secure by United States Letters Patent, is:
1. An apparatus for air conditioning a room providing a plurality of stations therein comprising: an air supply means including a duct having a plurality of openings communicating with said stations to provide local temperature effects therein; heating means and cooling means in the air supply means; two thermostatic control means for the heating and cooling means in the air supply means for maintaining predetermined different temperatures of the air passed through the duct to said openings; a return duct connecting said room with the air supply means; a thermostatically controlled damper controlling admission of return air and fresh air to said supply means; and a time clock for alternately selectively rendering effective said heating and cooling means for intermittently forcing cool air for periods of short duration, and heated air at a normal rate, through said openings to said stations.
2. An apparatus for air conditioning a room providing a plurality of stations therein comprising: an air supply means including a duct having a plurality of openings communicating with said stations to provide local temperature eifects therein; heating means and cooling means in the air supplymeans; two thermostatic control means for the heating and cooling means in the air supply means for maintaining predetermined diiferent temperatures of the air passed through the duct to said openings; and a time clock for alternately selectively rendering effective said heating and cooling means for intermittently forcing cool air for periods of short duration, and heated air at a normal rate, through said openings to said stations.
NILS PONTUS WILHELM FRISK.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS
US692858A 1945-02-22 1946-08-24 Device for improvement of heating, ventilating, and air conditioning plants Expired - Lifetime US2542763A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE2542763X 1945-02-22
GB36766/46A GB625930A (en) 1945-02-22 1946-12-12 Improvements in or relating to air-conditioning plant

Publications (1)

Publication Number Publication Date
US2542763A true US2542763A (en) 1951-02-20

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US692858A Expired - Lifetime US2542763A (en) 1945-02-22 1946-08-24 Device for improvement of heating, ventilating, and air conditioning plants

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US (1) US2542763A (en)
FR (1) FR941854A (en)
GB (1) GB625930A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3302553A (en) * 1966-04-18 1967-02-07 Shearn Bernard Ventilating accessory for air conditioning units
US3556202A (en) * 1969-04-25 1971-01-19 Gamewell Mechanical Inc Air conditioning system
US4251026A (en) * 1979-12-05 1981-02-17 Butler Ventamatic Corp. Attic ventilation control system
US5582233A (en) * 1995-02-22 1996-12-10 Noto; Paul V. Air circulation enhancement system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1234736A (en) * 1915-05-11 1917-07-31 Samuel Cleland Davidson Ventilation.
US1316517A (en) * 1919-09-16 Automatic selective temperature-controller
US2107268A (en) * 1935-11-29 1938-02-08 Avery Engineering Company Apparatus for conditioning air
US2110693A (en) * 1937-05-26 1938-03-08 Gen Electric Air conditioning system
US2238688A (en) * 1938-06-16 1941-04-15 Honeywell Regulator Co Air conditioning system
US2382468A (en) * 1944-03-18 1945-08-14 Cull Fred Albert Discharge outlet

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1316517A (en) * 1919-09-16 Automatic selective temperature-controller
US1234736A (en) * 1915-05-11 1917-07-31 Samuel Cleland Davidson Ventilation.
US2107268A (en) * 1935-11-29 1938-02-08 Avery Engineering Company Apparatus for conditioning air
US2110693A (en) * 1937-05-26 1938-03-08 Gen Electric Air conditioning system
US2238688A (en) * 1938-06-16 1941-04-15 Honeywell Regulator Co Air conditioning system
US2382468A (en) * 1944-03-18 1945-08-14 Cull Fred Albert Discharge outlet

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3302553A (en) * 1966-04-18 1967-02-07 Shearn Bernard Ventilating accessory for air conditioning units
US3556202A (en) * 1969-04-25 1971-01-19 Gamewell Mechanical Inc Air conditioning system
US4251026A (en) * 1979-12-05 1981-02-17 Butler Ventamatic Corp. Attic ventilation control system
US5582233A (en) * 1995-02-22 1996-12-10 Noto; Paul V. Air circulation enhancement system

Also Published As

Publication number Publication date
GB625930A (en) 1949-07-06
FR941854A (en) 1949-01-24

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