US3817159A - Ducted air conditioning system and combination duct therefor - Google Patents
Ducted air conditioning system and combination duct therefor Download PDFInfo
- Publication number
- US3817159A US3817159A US00342660A US34266073A US3817159A US 3817159 A US3817159 A US 3817159A US 00342660 A US00342660 A US 00342660A US 34266073 A US34266073 A US 34266073A US 3817159 A US3817159 A US 3817159A
- Authority
- US
- United States
- Prior art keywords
- air
- zones
- return
- conditioning system
- duct
- 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
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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
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
-
- 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
- F24F13/02—Ducting arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S138/00—Pipes and tubular conduits
- Y10S138/04—Air conditioning
Definitions
- the combination duct comprises a length of conduit having a partition extending theretlirough to thus form supply and return air sections which are substantially completely sealed from each other, each of such sections being provided with a plurality of openings therein communicating the respective sections with the ambient environment in the zones and the return air section communicating with tlhe fan coil unit for recycling of return air thereto.
- One such means is a terminal fan coil unit which is generally positioned in the wall of the room or zone to be provided with conditioned air and which is adapted to withdraw used or secondary air from the room or zone for further conditioning, as hereinabove described, prior to being recirculated in admixture with fresh or primary air.
- a unit ventilator or air conditioner may be installed at one location with ducts extending laterally to remote locations for the purpose of providing more uniform and effective air conditioning throughout one or more zones.
- return air is frequently withdrawn from the room or zone at the conditioning unit only, which results in the requirement for greater air induction in the vicinity of the unit. This has led to draughty conditions within the room.
- provision is made for the withdrawal of return air from locations distant from the incremental conditioner it has been necessary to install separate supply and return air ducts.
- Such separate duct systems are similarly required with a central air conditioning unit and terminal fan coil units in each room or zone to be air conditioned.
- the fabrication and installation of such separate return air ducts necessitates substantially increased labor costs and also requires modification of the fan coil unit to generally include either a straight through return grille or a connecting undercut door. Such modifications have also proven costly.
- an air conditioning system for supplying conditioned air to a plurality of zones, comprising air distribution means in a first of said zones adapted to supply conditioned air thereto and to receive return air therefrom, said distribution means having at least one combination supply/return air duct connected thereto and extending therefrom to at least one other zone to be air conditioned, said duct being internally partitioned lengthwise to provide a first section adapted to convey supply air from said distribution means to each of said other zones and a second section adapted to convey return air from each of said other zones to said distribution means, the said first section of said duct being provided with at least one opening therein in each of said other zones in communication with the respective zones and said second duct section having at least one opening therein in each of said other zones in communication with the respective zones, said first and second sections being substantially completely sealed from each other.
- a combination supply and return air duct for an air conditioning system comprising a length of conduit consisting essentially of an outer casing and an interior partition dividing said casing into first and second substantially airtight lengthwise extending sections, at least one opening being provided in each of said sections.
- FIG. 1 is a front elevational view of an incremental unit and its associated supply and return air ducts according to one embodiment of the invention
- FIG. 2 is a view similar to FIG. 1, illustrating a second embodiment
- FIGS. 3-5 are side elevational views of three alternate forms of the combined supply/return air duct of the invention.
- FIG. 1 of the drawings there is shown the console 10 of an incremental air conditioner situated within a room 12 and positioned on the floor 25. Adjacent rooms 13, 14 to be furnished with conditioned air are separated from room 12 by wall partitions 26. A combination supply/return air duct 15 extends laterally from the console into the adjacent rooms and is adapted as will be hereinafter described, to supply each of the rooms with conditioned air and to withdraw from each such room air to be reconditioned and then recycled.
- the combination duct as can be seen more clearly from FIGS. 3, 4 and 5, is formed with an outer casing 16 and a lengthwise extending interior partition 17.
- the partition divides the duct into two substantially airtight sections 18 and 19.
- section 18 serves to convey supply air to each of the rooms to be conditioned.
- the section is provided with at least one opening 20 in each such room communicating the interior of section 18 therewith in order to furnish supply air to the room.
- Section 19 of the combination duct is employed as the return.
- section 19 is provided with at least one opening 21 in each of the rooms to be conditioned so that return air may be withdrawn from the room for passage back to the console for reconditioning and recirculation.
- the casing 16 is carried by the walls 27 of the rooms through which the laterally extending ducts traverse.
- FIG. 1 illustrates a specific embodiment of the invention, wherein the laterally extending combination duct extends between the furthest zones or rooms to be air conditioned and the sides of the console.
- a vertically extending branch 22 leads from the return section at each side of the console to the bottom of the console where an opening is provided to accept the return air.
- a second embodiment of the invention is shown in FIG. 2 wherein the combination duct extends to the sides of the console.
- the return section 19 is provided with openings 23 for returning the air to the console via a space 28 between partitions 24, which may be the wall of the room, and the sides of the console.
- both sides of the console are provided with space 28 defined by an adjacent partition and the side of the console.
- the console sides may be open or they may be provided with louver arrangements whereby the return air may be induced into the console for recycling.
- FIGS. 35 show alternate dispositions for the partition 17.
- the partition is a horizontal one; in FlG. 4, the partition is vertical, and as illustrated in FlG. 5, the partition may be angularly inclined within the outer casing. In all embodiments, however, it is important that the sections be substantially air-tight such that there is no premature mixing of the supply and return air in the laterally extending regions of the duct.
- An air conditioning system for supplying conditioned air to a plurality of zones, comprising air distribution means in a first of said zones adapted to supply conditioned air thereto and to receive return air therefrom, said distribution means having at least one combination supply/retum air duct connected thereto and extending therefrom to at least one other zone to be air conditioned, said duct being internally partitioned lengthwise to provide a first section adapted to convey supply air from said distribution means to each of said other zones and a second section adapted to convey return air from each of said other zones to said distribution means, the said first section of said duct being provided with at least one opening therein in each of said other zones in communication with the respective zones and said second duct sections having at least one opening therein in each of said other zones in communication with the respective zones, said first and second sections being substantially completely sealed from each other.
- An air conditioning system according to claim 1, wherein said air distribution system means comprises the terminal fan coil unit of a central system.
- An air conditioning system wherein the combination duct extends between the furthest zones to be air conditioned and the sides of the console, said return sections being provided with vertical branches connected adjacent their lower ends to the bottom of said console to direct return air from said other zones to the interior of said console.
- terminal fan coil unit is positioned within an enclosure therefor, said enclosure being mounted in an exterior wall of said first zone, said duct extending laterally from said enclosure into at least one adjacent zone separated from said first zone by a wall partition.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Duct Arrangements (AREA)
Abstract
Description
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00342660A US3817159A (en) | 1973-03-19 | 1973-03-19 | Ducted air conditioning system and combination duct therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00342660A US3817159A (en) | 1973-03-19 | 1973-03-19 | Ducted air conditioning system and combination duct therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
US3817159A true US3817159A (en) | 1974-06-18 |
Family
ID=23342739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00342660A Expired - Lifetime US3817159A (en) | 1973-03-19 | 1973-03-19 | Ducted air conditioning system and combination duct therefor |
Country Status (1)
Country | Link |
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US (1) | US3817159A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4120347A (en) * | 1976-10-04 | 1978-10-17 | Imre Molnar | Two-passage pipe, especially for air conditioning installations |
US4854376A (en) * | 1986-07-24 | 1989-08-08 | Sanyo Electric Co., Ltd. | Wall mounted air conditioner with dischargers in separate rooms |
US5617729A (en) * | 1996-04-30 | 1997-04-08 | Hyman; Curtis | Central air condition utility system and method of operation thereof |
US9946223B2 (en) * | 2015-07-08 | 2018-04-17 | Ricoh Company, Ltd. | Cooling device and image forming apparatus incorporating the cooling device |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1622664A (en) * | 1923-04-21 | 1927-03-29 | Thomas E Murray | Hollow structure and method of making the same |
US1979804A (en) * | 1932-02-16 | 1934-11-06 | Nat Electric Prod Corp | Multiple passage wiring duct |
US2038579A (en) * | 1934-01-20 | 1936-04-28 | Westinghouse Electric & Mfg Co | Air conditioning system |
US2120883A (en) * | 1935-01-21 | 1938-06-14 | Kemper P Brace | Air conditioning system |
US2709454A (en) * | 1950-09-08 | 1955-05-31 | Thomas C Coulters | Heating and ventilating duct |
US2877990A (en) * | 1954-02-24 | 1959-03-17 | Robertson Co H H | Air conditioning and electrical wire distrubting structure |
US2984458A (en) * | 1956-03-13 | 1961-05-16 | Alden I Mcfarlan | Air conditioning |
US3537485A (en) * | 1967-09-12 | 1970-11-03 | Birma Products Corp | Duct modules for climate control system |
-
1973
- 1973-03-19 US US00342660A patent/US3817159A/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1622664A (en) * | 1923-04-21 | 1927-03-29 | Thomas E Murray | Hollow structure and method of making the same |
US1979804A (en) * | 1932-02-16 | 1934-11-06 | Nat Electric Prod Corp | Multiple passage wiring duct |
US2038579A (en) * | 1934-01-20 | 1936-04-28 | Westinghouse Electric & Mfg Co | Air conditioning system |
US2120883A (en) * | 1935-01-21 | 1938-06-14 | Kemper P Brace | Air conditioning system |
US2709454A (en) * | 1950-09-08 | 1955-05-31 | Thomas C Coulters | Heating and ventilating duct |
US2877990A (en) * | 1954-02-24 | 1959-03-17 | Robertson Co H H | Air conditioning and electrical wire distrubting structure |
US2984458A (en) * | 1956-03-13 | 1961-05-16 | Alden I Mcfarlan | Air conditioning |
US3537485A (en) * | 1967-09-12 | 1970-11-03 | Birma Products Corp | Duct modules for climate control system |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4120347A (en) * | 1976-10-04 | 1978-10-17 | Imre Molnar | Two-passage pipe, especially for air conditioning installations |
US4854376A (en) * | 1986-07-24 | 1989-08-08 | Sanyo Electric Co., Ltd. | Wall mounted air conditioner with dischargers in separate rooms |
US5617729A (en) * | 1996-04-30 | 1997-04-08 | Hyman; Curtis | Central air condition utility system and method of operation thereof |
US9946223B2 (en) * | 2015-07-08 | 2018-04-17 | Ricoh Company, Ltd. | Cooling device and image forming apparatus incorporating the cooling device |
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Legal Events
Date | Code | Title | Description |
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AS | Assignment |
Owner name: MERCANTILE TEXAS CREDIT CORPORATION; MERCANTILE CO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SYNDER GENERAL CORPORATION;REEL/FRAME:003985/0168 Effective date: 19820401 Owner name: MERCANTILE TEXAS CREDIT CORPORATION, TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SYNDER GENERAL CORPORATION;REEL/FRAME:003985/0168 Effective date: 19820401 |
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AS | Assignment |
Owner name: SNYDER GENERAL CORPORATION, A CORP. OF TEX. Free format text: ASSIGNS THE ENTIRE INTEREST, AS OF APRIL 2, 1982 SUBJECT TO LICENSES AND CONDITIONS RECITED;ASSIGNOR:SINGER COMPANY, THE;REEL/FRAME:004051/0894 Effective date: 19820402 Owner name: SNYDER GENERAL CORPORATION Free format text: ASSIGNS THE ENTIRE INTEREST, AS OF APRIL 2, 1982 SUBJECT TO LICENSES AND CONDITIONS RECITED, SEE DOCUMENT FOR DETAILS;ASSIGNOR:SINGER COMPANY, THE;REEL/FRAME:004051/0894 Effective date: 19820402 |
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AS | Assignment |
Owner name: CITICORP INDUSTRIAL CREDIT, INC., 717 NORTH HARWOO Free format text: SECURITY INTEREST;ASSIGNOR:SYNDER GENERAL CORPORATION A TX CORP;REEL/FRAME:004307/0351 Effective date: 19840726 |
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Owner name: MCQUAY INC., A CORP. OF MINNESOTA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SNYDER GENERAL CORPORATION, A TX CORP.;REEL/FRAME:004607/0038 Effective date: 19860327 Owner name: SNYDER GENERAL CORPORATION Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MCQUAY INC.;REEL/FRAME:004607/0047 Effective date: 19860327 Owner name: MCQUAY INC., A CORP. OF MINNESOTA, STATELESS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SNYDER GENERAL CORPORATION, A TX CORP.;REEL/FRAME:004607/0038 Effective date: 19860327 Owner name: SNYDER GENERAL CORPORATION, STATELESS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MCQUAY INC.;REEL/FRAME:004607/0047 Effective date: 19860327 |
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Owner name: CITICORP INDUSTRIAL CREDIT INC., 2700 DIAMOND SHAM Free format text: SECURITY INTEREST;ASSIGNOR:SNYDERGENERAL CORPORATION;REEL/FRAME:004765/0735 Effective date: 19870630 Owner name: CITICORP INDUSTRIAL CREDIT INC.,TEXAS Free format text: SECURITY INTEREST;ASSIGNOR:SNYDERGENERAL CORPORATION;REEL/FRAME:004765/0735 Effective date: 19870630 |
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Owner name: CITICORP NORTH AMERICA, INC., NEW YORK Free format text: SECURITY INTEREST;ASSIGNOR:SNYDERGENERAL CORPORATION, A MN CORP.;REEL/FRAME:005013/0592 Effective date: 19881117 |
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Owner name: SNYDERGENERAL CORPORATION, A MN CORP., TEXAS Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:MCREDIT;REEL/FRAME:005003/0183 Effective date: 19881115 |
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Owner name: MCQUAY INC., A CORP. OF MINNESOTA, MINNESOTA Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CITICORP NORTH AMERICA, INC.;REEL/FRAME:005278/0013 Effective date: 19881117 Owner name: SNYDERGENERAL CORPORATION, A CORP. OF MINNESOTA, T Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CITICORP NORTH AMERICA, INC.;REEL/FRAME:005278/0013 Effective date: 19881117 |
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Owner name: SNYDERGENERAL CORPORATION A CORP. OF DELAWARE Free format text: RELEASE BY SECOND PARTY OF A SECURITY AGREEMENT RECORDED AT REEL 5013 FRAME 592.;ASSIGNOR:CITICORP NORTH AMERICA, INC. A CORP. OF DELAWARE;REEL/FRAME:006104/0270 Effective date: 19920326 |