US3122201A - Air conditioning system - Google Patents

Air conditioning system Download PDF

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Publication number
US3122201A
US3122201A US26986A US2698660A US3122201A US 3122201 A US3122201 A US 3122201A US 26986 A US26986 A US 26986A US 2698660 A US2698660 A US 2698660A US 3122201 A US3122201 A US 3122201A
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US
United States
Prior art keywords
air
damper
heat exchanger
unit
casing
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 - Lifetime
Application number
US26986A
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English (en)
Inventor
Carlyle M Ashley
Milton H Coleman
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.)
Carrier Corp
Original Assignee
Carrier Corp
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 Carrier Corp filed Critical Carrier Corp
Priority to US26986A priority Critical patent/US3122201A/en
Priority to GB4926/61A priority patent/GB972077A/en
Priority to ES0266538A priority patent/ES266538A1/es
Priority to FI610746A priority patent/FI43468C/fi
Priority to CH492661A priority patent/CH390503A/de
Priority to DK179161AA priority patent/DK105429C/da
Application granted granted Critical
Publication of US3122201A publication Critical patent/US3122201A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/26—Arrangements for air-circulation by means of induction, e.g. by fluid coupling or thermal effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/00075—Indoor units, e.g. fan coil units receiving air from a central station
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/01—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station in which secondary air is induced by injector action of the primary air
    • 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
    • F24F11/70—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
    • F24F11/75—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 for maintaining constant 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
    • 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
    • F24F11/81—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the air supply to heat-exchangers or bypass channels
    • 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
    • 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
    • F24F3/02—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 characterised by the pressure or velocity of the primary air
    • F24F3/04—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 characterised by the pressure or velocity of the primary air operating with high pressure or high velocity
    • 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
    • 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
    • F24F2003/003—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 with primary air treatment in the central station and subsequent secondary air treatment in air treatment units located in or near the rooms
    • 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
    • F24F2003/003—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 with primary air treatment in the central station and subsequent secondary air treatment in air treatment units located in or near the rooms
    • F24F2003/005—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 with primary air treatment in the central station and subsequent secondary air treatment in air treatment units located in or near the rooms with a single air duct for transporting treated primary air from the central station to air treatment units located in or near the rooms
    • 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

Definitions

  • the primary object of this invention is to provide an improved induction type air conditioning system designed to obviate the disadvantages present in previous systems of this type.
  • An object of this invention is to provide an air conditioning system containing an improved induction unit.
  • Another object of this invention is to provide an air conditioning system containing an improved induction unit including means for automatically varying the heat exch nge capacity of each induction unit by regulating the qua ';y or" secondary air passing over the heat exchanger in each induction unit.
  • Still another object of this invention is to provide an air conditioning system containing an improved induction unit including a bellows damper arrangement and a control therefor responsive to p ary air pressure.
  • a still further object of this invention is to provide an air conditioning system containing an induction unit including means moving a damper to increase unit heat exchange capacity and means moving the damper to decrease unit heat exchange capacity in response to primary air pressure, the separate means including a control responsive to the temperature of the secondary air.
  • a further object is to provide a novel method of operation of an air conditioning system.
  • Other objects of the invention 1' ill be readily perceived from the following description.
  • the present invention relates to an air conditioning system for treating a plurality of areas.
  • the system cornnrises the combination of a central tation remote from said areas, means for supplying air to be conditioned to said central station, a plurality of induction units, at least one in each area to be conditioned, means for delivering a quantity of high static pressure conditioned air for ventilation from said central station to said units, means in each of the units for discharging the conditioned air w in said units at relatively high velocity, means for Suppl, g within the units other air from within the areas to be conditioned induced by the high velocity dicharge of conditioned air within the units, means for discharging the conditioned air and the induced air from each of the units into the area served thereby, a heat exchanger in each unit, means for supplying conditioning medium to the heat exchangers, a damper in each unit for regulatthe heat exchanger, means urging said damper in a first direction increasing the passage of induced air through the heat exchanger, means for actuating the damper
  • This invention further relates to a method of operating an air conditioning system comprising the steps of supplying primary from a central station to induce secondary irom an area being conditioned to pass in heat exchange relation with a conditioning medium, discharging the mixture of primary air and secondary air in the area being conditioned, moving a damper to regulate the quantity of secondary air being passed in heat exchange relation with the conditioning medium, controlling the damper by imposing primary air pressure upon a bellows actuator for the damper, and varying the air pressure imposed on the bellows actuator in response to the temperature of the secondary air to vary the quantity of secondary air passing in heat exchange relation with the conditioning medium.
  • FEGURE 1 is a diagrammatic view of an air conditioning system of the present invention
  • PEGURE 2 is a perspective view of an air conditioning unit or" he present invention with parts broken away and illustrating the control for the bellows damper arrangement;
  • FIGURE 3 is a fragmentary sectional view of the air conditioning unit illustrating the bellows damper arrangement
  • FEGURZE 4 is a diagrammatic view of a control arrangement for the bellows damper arrangement of the present invention.
  • FIGURE 1 of the attached drawings there is shown an air conditioning system of the induction type embodying the present invention.
  • the system includes a central station 2 including dampers 3 through which exterior air to be conditioned may pass into the central station, a filter 4, a precooling coil 5, a spray attachment 6, a cooling coil 7, a heating coil 8 and a fan Fan Q draws air tlnough the dampers into the central station where the air is treated and supplies this treated air as a source of primary air through a riser l9 and run-outs ll to room units 12 placed in the areas 13 being treated.
  • the primary air is at relatively high static pressure, preferably in the range between 1.5 inches water gage and 5 inches water gage, and at relatively high velocity, on the order of 3,900 to 5,096 feet per minute. It will be observed that room units 12 are shown diagrammaticaily, such units being illustrated in greater detail in FiG-URE 2.
  • a refrigeration machine 15 is provided to furnish cold water to the room units.
  • Pump P draws cold water from the refrigeration machine and forwards the cold water through line to heat exchangers 32 in the room units 12, the water returning from the room units after passage in heat exchange relation with secondary air induced into the units through line 17 to the refrigeration machine.
  • a source of hot water 18 is also provided for passage to the heat exchangers of the room units during winter operating conditions.
  • the hot water source 18 is connected to pump P by line 19 and to return line 17 by line 2%.
  • Suitable valves V are provided in these lines to permit cold water or hot water to be furnished alternately to the room units as desired.
  • Room unit L. includes a removable enclosure 24. Within the enclosure is a base unit in which is placed a plenum chamber as connected to runout 11 by duct portion 27 to permit primary air to be supplied tothe plenum chamber.
  • Plenum chamber 26 is provided with suitable discharge means 28 to discharge primary air within the u Discharge means 28 may consist of separate spaced nozzles, as shown, or may be a single slot-type nozzle.
  • the how of air from plenum chamber 26 to nozzles 23 through the slot 2% may be regulated to maintain a predetermined pressure at the nozzles by means of slide plate or balancing damper 39 w. ich is movable to open and close slot 29.
  • Suitable adjustment means 31 as, for example, a screw movable through the base unit 25 is provided to adjust the slide plate 3%.
  • base unit described may be provided with an enclosure or casing, as shown, or furred in the building or structure, as desired.
  • a heat exchanger 32 is placed in base unit 25 and is adaptedto be connected to lines it: and 17 to permit conditioning medium to be passed therethrough.
  • Heat exchanger 32 is spaced from plenum chamber 26 and provides a bypass passage 33 for secondary air.
  • Wall 3 of base unit 25 prevents passage of secondary through heat exchanger 32 when the bypass passage is fully opened.
  • the room unit may be suspended from the wall 35 of the building structure.
  • the room unit is spaced from the floor 35 of the building structure to permit secondary room air to be induced into the unit from the bottom thereof.
  • Removable enclosure 24 of unit 12 includes an inlet 37 in the bottom thereof to permit secondary air to be induced into the unit and an outlet 38 in the top thereof to permit a mixture of primary air and secondary air to be discharged into the area being treated.
  • Arrangement 39 includes a damper 49 substantially coextensive with the length of heat exchanger 32.
  • Damper ll is connected to shaft ll which is iournalled in supports 41' secured to base unit 25. Shaft is urged by counterbalance 43 in a direction to permit the damper to close bypass passage and thus direct all induced air through the heat exchanger.
  • the means for actuating damper dill to open the bypass passage comprises an expansible member or bellows made of elastomeric coated fabric, preferably nylon coated with neoprene.
  • Two reinforcing strips 45 are suitably bonded to the inside of the bellows to provide support therefor.
  • the top of bellows 44 is reinforced along its lateral length by a pair of stiifening strips 1'5.
  • the strips 45, 56 may be formed from metal, as for example, aluminum or from plastic, as for example, polyester
  • the bellows fabric does not expand and contract but rather the side walls of the bellows pivot with respect to one another about hinge means formed by the apex of the bellows connecting the side walls in response to variation in pressure within the bellows.
  • bellows 44 One side of bellows 44 is affixed to a suitable support bracket 43 which is fixedly mounted with respect to base unit 25.
  • the other side wall of the bellows pivots in response to an increase of pressure within the bellows and has affixed to it a ii-shaped protector plate 49.
  • the portion s? of the protector plate bears against button 5%, preferably made from plastiqon the damper 49 to actuate the latter.
  • the portion 4% of the protector plate prevents dirt from accumulating in the upper portion of the bellows and interfering with the operation thereof.
  • Connector 4-7 is adapted to communicate bellows 44 with a source of control air.
  • FIGURE. 4 there is shown a suitable control arrangement for the bellows damper arrangement 39.
  • a line 51 in communication with the plenum chamber 26.
  • the small quantity of air directed from the plenum chamber above the slide is fed through air filter 52 to eliminate the ticles which may have escaped the primary air system.
  • the air then passes through line 53 to the air PIESSE1 regulator as which will maintain a constant downstream pressure of approximately 1.5 inches of water column.
  • the changeover valve communicates line 64 with either line 66 or 67 dependent upon the temperature of the fluid in heat exchanger
  • changeover valve 6? is regulated by 1 cans of a thermal actuator 52 placed on heat exchanger 32 so that it is responsive to the temperature of conditioning medium passing through the heat exchanger. ce warm water is supplied to the heat exchanger under winter operating conditions and coldwater is supplied to the heat exchanger under summer operating conditions it will be appreciated that valve 61 selects the line in use under these various operating conditions.
  • Control 6 which is responsive to the temperature in the area being treated is connectedto the lines as and 57 r spectively.
  • Control 68 includes casing 69 having inlet 7% in communication with. the secondary air by means of duct Tl and an outlet '72 in communication with the assage adjacent the nozzles 28.
  • the control also includes l bimetallic elements 7 3 and 74 adiacent the outlets of each line 66 and er. Birnetmlic elements 73 and 74 sense the temperature of the secondary air induced through the casing 6) to bleed air from lines 6-5 andi, respectively, thus varying the pressure imposed in bellows 4 during the various operating conditions.
  • change over valve 61 is actuated to place line 63 in communication with line 66 in response to the temperature of the heating medium passing through heat exchanger 32.
  • Damper 49 is urged clockwise, as seen in FIGURE 4, by counterbalance 43 to close bypass passage 33 and increase the heating of secondary air.
  • Primary control air flows through line 51, filter 52, pressure regulator 54, restriction orifice 57 in restriction T 56 to the bellows 44 through line 59.
  • line 66 is opened to the atmosphere and damper 40 remains under the control of the counterbalance 43.
  • the control 68 is adapted for use in a nonchangeover system. If, for example, the control is employed in a system designed only for cooling, then a connection is made from the restriction T directly to the cooling port of the control, eliminating changeover valve 61.
  • the present invention provides an air conditioning system wherein the flow of primary air and the fiow of conditioning medium to each unit in such system is constant.
  • the air conditioning unit of the present invention includes an improved conditioning unit of economical design which contains eflicient automatic means for varying the heat exchange capacity of each unit by regulating the quantity of secondary air passing over the heat exchanger.
  • the automatic control means rnay be integrated within a modular unit used in the system of the present invention.
  • the air conditioning system of the present invention contains a plurality of air conditioning units each of which may be almost wholly constructed in a factory thus eliminating the need for and the cost of engineering services in the field.
  • the use of the air conditioning system of the present invention greatly simplifies and reduces the cost of the water piping associated with such system.
  • an air conditioning unit the combination of a casing, a plenum chamber in said casing adapted to be placed in communication with a source of supply air, said plenum chamber having discharge means therein to discharge primary air within the casing, a heat exchanger in said casing adapted to be placed in communication with a source of heat exchange medium, said casing having an inlet and an outlet therein, discharge of primary air in the unit inducing secondary air from the area being conditioned through the inlet into the unit to mix with primary air, the mixture being discharged through the outlet, a damper for regulating the quantity of secondary air passing through or bypassing the heat exchanger, said damper being pivotally mounted within said casing, teams for moving said damper in a first direction, and a control for moving said damper in a second direction comprising an expansible member for actuating said damper, means for communicating the expansible member with the plenum chamber, and means for controlling the pressure within the expansible member in response to the temperature of secondary air.
  • an air conditioning unit the combination of a casing, a plenum chamber in said casing adapted to be placed in communication with a source of primary air, said plenum chamber having discharge means therein to discharge primary air
  • a heat exchanger in said casing adapted to be placed in communication with a source of heat exchange medium, said casing having an inlet and an outlet therein, discharge of primary air in the casing inducing secondary air from the area being conditioned through the inlet into the casing to mix with primary air, the mixture being discharged through the outlet, a damper to regulate the quantity of secondary air passing through or bypassing the heat exchanger, an expansible member operatively connected to said damper to actuate the same, and means for controlling the operation of said expansible member responsive to primary air pressure, said controlling means comprising means for bleeding air to the atmosphere in response to the temperature of the induced secondary air, said damper being biased toward a first position to pass substantially all the secondary air through the heat exchanger and said expansible member urging said damper toward a

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Central Air Conditioning (AREA)
  • Duct Arrangements (AREA)
US26986A 1960-05-05 1960-05-05 Air conditioning system Expired - Lifetime US3122201A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US26986A US3122201A (en) 1960-05-05 1960-05-05 Air conditioning system
GB4926/61A GB972077A (en) 1960-05-05 1961-02-09 Air conditioning system
ES0266538A ES266538A1 (es) 1960-05-05 1961-04-13 Un aparato de acondicionamiento de aire
FI610746A FI43468C (fi) 1960-05-05 1961-04-18 Ilmastointilaitoksen suutinkonvektori
CH492661A CH390503A (de) 1960-05-05 1961-04-26 Raumeinheit für Klimaanlagen
DK179161AA DK105429C (da) 1960-05-05 1961-05-02 Luftkonditioneringsapparat.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26986A US3122201A (en) 1960-05-05 1960-05-05 Air conditioning system

Publications (1)

Publication Number Publication Date
US3122201A true US3122201A (en) 1964-02-25

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ID=21834987

Family Applications (1)

Application Number Title Priority Date Filing Date
US26986A Expired - Lifetime US3122201A (en) 1960-05-05 1960-05-05 Air conditioning system

Country Status (6)

Country Link
US (1) US3122201A (e)
CH (1) CH390503A (e)
DK (1) DK105429C (e)
ES (1) ES266538A1 (e)
FI (1) FI43468C (e)
GB (1) GB972077A (e)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3198246A (en) * 1962-03-26 1965-08-03 Trane Co Induction unit
US3208508A (en) * 1961-12-15 1965-09-28 Carrier Corp Air conditioning system and method
US3223149A (en) * 1962-07-09 1965-12-14 Trane Co Induction unit primary air control
US3327605A (en) * 1964-11-18 1967-06-27 Spoormaker Hendrik Jacobus Air conditioning terminal units
US3397740A (en) * 1965-12-10 1968-08-20 Carrier Corp Air conditioning units
US3450342A (en) * 1966-06-23 1969-06-17 Carrier Corp Air-conditioning apparatus
US3465814A (en) * 1968-03-12 1969-09-09 Carrier Corp Air conditioning terminal
DE1679503B1 (de) * 1966-09-02 1971-04-01 Carrier Corp Induktions-Klimageraet
US3623542A (en) * 1969-10-31 1971-11-30 Carrier Corp Control of air-conditioning apparatus
US3650320A (en) * 1970-04-30 1972-03-21 Borg Warner Induction unit control system
US3777806A (en) * 1972-02-04 1973-12-11 Spolair Eng Systems Ag Climatization plant
EP0374786A2 (de) * 1988-12-19 1990-06-27 Schako Metallwarenfabrik Ferdinand Schad KG Zuluftführungssystem
FR2903480A1 (fr) * 2006-07-05 2008-01-11 Daniel Negroni Recuperateur de chaleur en sortie de groupe a condensation a air ou eau de pompe a chaleur pour chauffer l'eau
US9726442B2 (en) 2010-01-24 2017-08-08 Oy Halton Group Ltd. Chilled beam devices, systems, and methods
US9920950B2 (en) 2012-03-16 2018-03-20 Oy Halton Group Ltd. Chilled beam with multiple modes
US20220349594A1 (en) * 2019-12-04 2022-11-03 Hitachi Global Life Solutions, Inc. Air Conditioning System

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3402618A1 (de) * 1984-01-26 1985-08-08 Krupp Mak Maschinenbau Gmbh, 2300 Kiel Vorrichtung zum klimatisieren von raeumen
US6185943B1 (en) * 1997-05-16 2001-02-13 Work Smart Energy Enterprises, Inc. High-efficiency air-conditioning system with high-volume air distribution
CN111912087A (zh) * 2020-08-13 2020-11-10 沈阳如茂空调净化设备有限公司 一种高效送风口静压箱

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1904918A (en) * 1932-02-15 1933-04-18 Buckeye Blower Company Heating and ventilating apparatus
US2567758A (en) * 1945-12-01 1951-09-11 Carrier Corp Air-conditioning method
US2705595A (en) * 1953-06-24 1955-04-05 Westinghouse Electric Corp Air distributing units
US2906287A (en) * 1955-09-20 1959-09-29 Buensod Stacey Inc Flow control device
US2913227A (en) * 1956-02-06 1959-11-17 Trane Co Air conditioning unit
US2957629A (en) * 1958-08-14 1960-10-25 Robertson Co H H Pressure and temperature control of air mixing outlet unit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1904918A (en) * 1932-02-15 1933-04-18 Buckeye Blower Company Heating and ventilating apparatus
US2567758A (en) * 1945-12-01 1951-09-11 Carrier Corp Air-conditioning method
US2705595A (en) * 1953-06-24 1955-04-05 Westinghouse Electric Corp Air distributing units
US2906287A (en) * 1955-09-20 1959-09-29 Buensod Stacey Inc Flow control device
US2913227A (en) * 1956-02-06 1959-11-17 Trane Co Air conditioning unit
US2957629A (en) * 1958-08-14 1960-10-25 Robertson Co H H Pressure and temperature control of air mixing outlet unit

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3208508A (en) * 1961-12-15 1965-09-28 Carrier Corp Air conditioning system and method
US3198246A (en) * 1962-03-26 1965-08-03 Trane Co Induction unit
US3223149A (en) * 1962-07-09 1965-12-14 Trane Co Induction unit primary air control
US3327605A (en) * 1964-11-18 1967-06-27 Spoormaker Hendrik Jacobus Air conditioning terminal units
US3397740A (en) * 1965-12-10 1968-08-20 Carrier Corp Air conditioning units
US3450342A (en) * 1966-06-23 1969-06-17 Carrier Corp Air-conditioning apparatus
DE1679503B1 (de) * 1966-09-02 1971-04-01 Carrier Corp Induktions-Klimageraet
US3465814A (en) * 1968-03-12 1969-09-09 Carrier Corp Air conditioning terminal
US3623542A (en) * 1969-10-31 1971-11-30 Carrier Corp Control of air-conditioning apparatus
US3650320A (en) * 1970-04-30 1972-03-21 Borg Warner Induction unit control system
US3777806A (en) * 1972-02-04 1973-12-11 Spolair Eng Systems Ag Climatization plant
EP0374786A2 (de) * 1988-12-19 1990-06-27 Schako Metallwarenfabrik Ferdinand Schad KG Zuluftführungssystem
EP0374786A3 (de) * 1988-12-19 1991-01-09 Schako Metallwarenfabrik Ferdinand Schad KG Zuluftführungssystem
FR2903480A1 (fr) * 2006-07-05 2008-01-11 Daniel Negroni Recuperateur de chaleur en sortie de groupe a condensation a air ou eau de pompe a chaleur pour chauffer l'eau
US9726442B2 (en) 2010-01-24 2017-08-08 Oy Halton Group Ltd. Chilled beam devices, systems, and methods
US9920950B2 (en) 2012-03-16 2018-03-20 Oy Halton Group Ltd. Chilled beam with multiple modes
US20220349594A1 (en) * 2019-12-04 2022-11-03 Hitachi Global Life Solutions, Inc. Air Conditioning System
US11649975B2 (en) * 2019-12-04 2023-05-16 Hitachi Global Life Solutions, Inc. Air conditioning system
US12085308B2 (en) 2019-12-04 2024-09-10 Hitachi Global Life Solutions, Inc. Air conditioning system

Also Published As

Publication number Publication date
CH390503A (de) 1965-04-15
GB972077A (en) 1964-10-07
FI43468B (e) 1970-12-31
ES266538A1 (es) 1961-11-01
DK105429C (da) 1966-09-26
FI43468C (fi) 1971-04-13

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