US3808960A - Adjustable air inlet - Google Patents
Adjustable air inlet Download PDFInfo
- Publication number
- US3808960A US3808960A US30869272A US3808960A US 3808960 A US3808960 A US 3808960A US 30869272 A US30869272 A US 30869272A US 3808960 A US3808960 A US 3808960A
- Authority
- US
- United States
- Prior art keywords
- louver
- building
- opening
- flow
- air
- 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
Links
- 238000009423 ventilation Methods 0.000 claims description 16
- 238000004873 anchoring Methods 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 244000144972 livestock Species 0.000 claims description 4
- 244000144977 poultry Species 0.000 description 22
- 210000003608 fece Anatomy 0.000 description 3
- 241000287828 Gallus gallus Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 241000271566 Aves Species 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K31/00—Housing birds
-
- 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
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
-
- 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
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
- F24F2013/1433—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with electric motors
-
- 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
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
- F24F2013/1453—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with cables, e.g. bowden cables
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/877—With flow control means for branched passages
- Y10T137/87788—With valve or movable deflector at junction
- Y10T137/87812—Pivoted valve or deflector
Definitions
- a principal disadvantage with present arrangements is the lack of a simple and yet meaningful control over the air inlet mechanism.
- At each level or rate of exhaust there is a corresponding optimum inlet opening to provide the proper balance for replacement air. If the opening is larger than required, insufficient mixing is achieved. That is, the movement of the incoming air will be insufficient to reach the innermost and lowermost extremities of the building therefore causingan overcooling with respect to the poultry near the inlet ducts and insufficient cooling or ventilation with respect to poultry removed from the inlet ducts.
- the inlet opening is too small, the pressure differential across the inlet opening caused by the exhaust fans result in the inlet air flowing at a higher velocity than is desired. Thus, the distribution of fresh air into the poultry house is many times uneven and therefore results in the development of stagnant areas which are never properly ventilated.
- the ventilation of poultry houses in general is achieved by elevating the poultry above'the floor of the building and positioning exhaust fans beneath the poultry with the air inlet ductspositioned above the poultry.
- This type of system is designed to withdraw stale air below the poultry where dung discharge devices are usually arranged while at the same time bringing fresh replacement air from above.
- a louver is positioned adjustably in association with the air inlet duct between a first position wherein the louver generally blocks the flow of air through said inlet duct and a second position wherein air flow through said inlet duct is permitted.
- the louver is supported along the lower margin at selected lateral positions by a bracket means permitting selection of the amount of down-wash opening.
- the louver pivots about the bracketmeans at various inclination angles selected by a cable-pulley arrangement which determines the lateral cross flow opening.
- One significant advantage of the invention is a relatively simple structure which permits quick and easy adjustment simultaneously of both the down-wash and cross flow openings.
- the deflection angle can be selected to meet the exhaust demand 50 that the flow distribution, is even.
- a deflection louver which provides both cross and down-wash flow, more effective distribution and mixing of the fresh ventilating air is provided.
- By matching the cross section of either down-wash or cross flow opening with the exhaust demand complete and even distribution of the incoming air can be achieved.
- FIG. 1 is a fragmentary elevation view in cross section of a poultry house utilizing a control and adjust- DESCRIPTION OF THE PREFERRED EMBODIMENTS
- building 10 illustrated in FIG. 1 is specifically designed for raising poultry from their first day of existence until they are mature layers or broilers. Normally this period runs approximately 27 weeks.
- a typical building of this type generally extends yards in length and is approximately 60 feet wide.
- a particular object of the invention is to provide a ventilation system which provides an even mixture and distribution of fresh air into and throughout the building.
- the invention is described with particular reference to a poultryhouse, it will be appreciated that the ventilation system described can be utilized in various different environments.
- the poultry are housed in a plurality of cages on a support frame elevated above the floor of the building.
- cages are generally comprised of woven wire which permits the free fiow of air into and out of each cage.
- the floor of the building acts as a dung collection area for the poultry droppings which fall through the cage bottoms.
- An outlet duct through the walls draws the stagnant air from beneath the poultry cages.
- the exhaust fans are generally arranged in series along the building and each individual fan may be operated by a separate motor which is actuated by a temp erature sensing mechanism positioned within the building.
- Each individual fan is responsivev to an individual sensing mechanism so that when a preselected temperaturelevel is reached at each particular sensing station, each fan begins operating.
- FIG. 1 Building in FIG. 1 is shown having an inclined roof 12 with an overhang l4 and sidewall 16.
- the inclination of roof 12 facilitates water drainage and includes also a layer of insulation 18.
- the walls 16 also include insulation as shown at 20.
- the removal of air within building 10 by the exhaust fans reduces the pressure within the building relative to the ambient pressure outside and causes the'exhausted air to be replaced with fresh air which flows through appropriate ducts provided between the inside and outside of the building.
- an air inlet duct 22 is comprised, of an opening 24 extending continuously the length of each sidewall along the underside of overhang 14.
- a screen 26 filters the flow of outside air into the duct while preventing objects such as birds or other smaller animals or insects from gaining access to power source (not shown) which mechanically or auto y matically adjusts the angle of inclination.
- louver 40 Positioned beneath opening 28 and supported by a bracket 38 is a louver 40 for deflecting the inlet air flow through opening 28. It has been found that without some type of deflection means; ventilation of the build! ing is uneven and random resulting in over cooled portions and stagnant portions which are not cooled.
- Louver 40 extends the entire length of the building although it at the same time permitting rotation relative thereto so that the deflection angle a can be varied to meet the particular needs directing the flow into the building.
- the angle of inclination is selected by a cable 42 secured to the upper end of louver 40. Cable 42 in association witha pulley 44 ispulled or released manually or by conventional means interconnected to a Louver 40 is pivptally supported by brackets 38 to provide ventilating'flo'w into building 10 in two essential directions.
- Flow through opening 28 is also directed generally vertically downward in a direction illustrated by arrow 52 to provide down-wash ventilation of the poultry therebeneath.
- the flow in this case is around the lower margin 54 of louver 40 through a-second sub-opening 56 defined by lower margin 54 and wall 16.
- the crosssectional area of sub-opening 56 is selected by movement of the lower margin 54 of louver 40 in a'lateral direction provided by the unique mounting arrangement of louver 40 relative to bracket-38.
- Bracket 38 is characterized in the preferred form by a general overall L-shape with-the shorter leg portion 58 being used to anchor the bracket to wall-l6.
- the longer legportio'n 60 includes a plurality of laterally spaced openings 62, 62a and 62b. Connected to the tion is designed to selectively fit within one of the openings 62, 62a, 62b in order to select the desired magnitude of opening 56.
- the two portions 66 and 70 of tongue 64 are inclined relative to each other so that the overall general direction of tongue portion 70 is vertical.
- the width of openings 62, 62a and 62b exceed that of tongue 64 so that the tongue and louver can pivot relative to the bracket.
- each I sub-opening 50 and 56 is selected in the first case by positioning the upper margin 48 relative to ceiling 30 through the movement of cable 42 while the cross sectional magnitude of sub-opening 56 is selected by the particular opening 62, 62a, 62b in which the lower margin 54 of louver 40 is seated.
- the angle of inclination of louver 40 is selected primarily by the positioning of the louver through cable 42 although it is in part determined by the particular opening in which the lower margin of louver 40 is seated.
- the bracket and cable-pulley arrangement cooperate together.
- louver 40 could easily be suspended in accordance with the teaching of the invention so that it is movable between two extreme positions wherein the entire flow through inlet opening 28 ceases at the position wherein the lower margin 54 of louver 40 is in abutment or close approximation thereto with wall 16 and the upper margin is in abutting engagement with ceiling 30.
- a second position would provide full volume flow through opening 28 when louver 40 is released so that it is suspended in an overall horizontal direction regardless of the particular opening in bracket 38 in which it is seated.
- louver 40 may be physically prevented from further downward deflection by a stop such as a chain (not shown) anchored to the ceiling and secured to the lower or inner surface of louver 40.
- FIG. 2 the invention described is shown utilized in a somewhat different arrangement regarding inlet duct. Since the overall operation and arrangement is for the most part identical to that of the embodiment described in FIG. I, like numerals are utilized for like parts with the suffix a used to illustrate corresponding but modified elements.
- the inlet duct 22a is comprised of an opening 28a along the upper margin of wall 16a.
- the initial direction of flow through inlet opening 280 as depicted by arrows 32a is in a horizontal direction rather than vertical as shown in FIG. 1.
- the cross flow and down-wash flow however, is identical to that shown in FIG. 1 as is the adjustment and control of the cross flow opening 50 and down-wash opening 56.
- Apparatus for controlling the flow of air into a building comprising, in combination: means defining a ventilation air inlet opening in a building; a louver positionable in cooperative association with said inlet opening and movable between a first position wherein said louver generally blocks the flow of air through said opening, a second position wherein unrestricted air flow is permitted through said opening into the building, and intermediate positions between said first and second positions wherein flow through said opening is partially restricted and deflected above or below said louver in arbitrary directions into said building; first support means for pivotally anchoring the lower margin of said louver at selected lateral positions to select the size of the down-wash opening, said first support means including a support element anchored to a sidewall of said building beneath said opening, the lower margin of said louver being pivotally mounted to
- said cable-pulley means includes at least one pulley anchored above said louver and a cable strung through said pulley and anchored to said louver near the upper margin thereof.
- said second means is comprised of a cable anchored at one end along the upper margin of said louver and a pulley anchored to the ceiling of said building, said cable being movable around said pulley to pivotally move said louver to select the angle of inclination with respect to said inlet opening and preselect the cross sectional opening of said second passageway.
- Apparatus for controlling the flow of air into a building comprising, in combination: means defining a ventilation air inlet opening in a building; louver positionable in cooperative association with said inlet opening and movable between a first position wherein said louver generally blocks the flow of air through said opening, a second position wherein unrestricted air flow is permitted through said opening into the build ing, and intermediate positions between said first and second positions wherein flow through said opening is partially restricted and deflected above or below said louver in arbitrary directions into said building; a bracket anchored to a sidewall of said building beneath said opening, and extending laterally inward from the sidewall, said bracket including means defining a plurality of laterally spaced openings, said louver including means extending from the lower margin of said louver compatible with said openings to permit insertion thereof into said openings, said bracket pivotally anchoring the lower margin of said louver at selected lateral positions from said wall whereby said louver with said opening and wall defines a first adjustable flow passageway for directing the flow of
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Birds (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Air-Flow Control Members (AREA)
Abstract
Description
Claims (9)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05308692 US3808960A (en) | 1972-11-22 | 1972-11-22 | Adjustable air inlet |
US05/449,625 US3938428A (en) | 1972-11-22 | 1974-03-11 | Animal enclosure with pressure controlled ventilation inlet and deflection means |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05308692 US3808960A (en) | 1972-11-22 | 1972-11-22 | Adjustable air inlet |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US05/449,625 Continuation-In-Part US3938428A (en) | 1972-11-22 | 1974-03-11 | Animal enclosure with pressure controlled ventilation inlet and deflection means |
Publications (1)
Publication Number | Publication Date |
---|---|
US3808960A true US3808960A (en) | 1974-05-07 |
Family
ID=23195004
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US05308692 Expired - Lifetime US3808960A (en) | 1972-11-22 | 1972-11-22 | Adjustable air inlet |
Country Status (1)
Country | Link |
---|---|
US (1) | US3808960A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3951336A (en) * | 1974-08-28 | 1976-04-20 | Miller And Sons Structures, Inc. | Ventilation system for livestock housing |
US3965691A (en) * | 1974-05-28 | 1976-06-29 | U.S. Industries, Inc. | Cooling system for poultry houses |
US20040255614A1 (en) * | 2003-02-26 | 2004-12-23 | In-Gyu Kim | Built-in type outdoor unit for air conditioner |
US11191255B2 (en) * | 2016-10-21 | 2021-12-07 | New Hope Liuhe Feed Co., Ltd. | Premixed ventilated henhouse |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2754747A (en) * | 1953-03-20 | 1956-07-17 | Herman G Bertling | Air register or louver |
US2771020A (en) * | 1955-12-06 | 1956-11-20 | Peter T Shanahan | Ventilator |
US3194145A (en) * | 1963-07-31 | 1965-07-13 | Jr Andrew J Robertson | Air distributor |
-
1972
- 1972-11-22 US US05308692 patent/US3808960A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2754747A (en) * | 1953-03-20 | 1956-07-17 | Herman G Bertling | Air register or louver |
US2771020A (en) * | 1955-12-06 | 1956-11-20 | Peter T Shanahan | Ventilator |
US3194145A (en) * | 1963-07-31 | 1965-07-13 | Jr Andrew J Robertson | Air distributor |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3965691A (en) * | 1974-05-28 | 1976-06-29 | U.S. Industries, Inc. | Cooling system for poultry houses |
US3951336A (en) * | 1974-08-28 | 1976-04-20 | Miller And Sons Structures, Inc. | Ventilation system for livestock housing |
US20040255614A1 (en) * | 2003-02-26 | 2004-12-23 | In-Gyu Kim | Built-in type outdoor unit for air conditioner |
US7124601B2 (en) * | 2003-02-26 | 2006-10-24 | Lg Electronics, Inc. | Built-in type outdoor unit for air conditioner |
US11191255B2 (en) * | 2016-10-21 | 2021-12-07 | New Hope Liuhe Feed Co., Ltd. | Premixed ventilated henhouse |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: USI AGRI-BUSINESS COMPANY INC., PO BOX 9, ROUTE 32 Free format text: ASSIGNS NUNC PRO TUNC AS OF JANUARY 1985 THE ENTIRE INTEREST IN SAID PATENTS AND TRADEMARKS.;ASSIGNORS:U.S. INDUSTRIES, INC., A DE. CORP.;U.S. INDUSTRIES MANAGEMENT SERVICES, INC.;REEL/FRAME:004518/0252 Effective date: 19850819 Owner name: USI AGRI-BUSINESS COMPANY INC., A CORP. OF DE.,PEN Free format text: ASSIGNS NUNC PRO TUNC AS OF JANUARY 1985 THE ENTIRE INTEREST IN SAID PATENTS AND TRADEMARKS;ASSIGNORS:U.S. INDUSTRIES, INC., A DE. CORP.;U.S. INDUSTRIES MANAGEMENT SERVICES, INC.;REEL/FRAME:004518/0252 Effective date: 19850819 |
|
AS | Assignment |
Owner name: BIG DUTCHMAN, POST OFFICE BOX NINE, (ROUTE 322 WES Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:USI AGRI BUSINESS COMPANY, INC., A CORP OF DE.;REEL/FRAME:004628/0397 Effective date: 19861024 |
|
AS | Assignment |
Owner name: CYCLONE INTERNATIONAL INC., A CORP. OF MI., MICHIG Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:BIG DUTCHMAN;REEL/FRAME:005240/0992 Effective date: 19890814 |
|
AS | Assignment |
Owner name: BIG DUTCHMAN CYCLONE, INC. Free format text: CHANGE OF NAME;ASSIGNOR:CYCLONE INTERNATONAL INC. (CHANGED TO);REEL/FRAME:005238/0224 Effective date: 19891212 |