US3541944A - Nozzle for the mouth of an air duct - Google Patents

Nozzle for the mouth of an air duct Download PDF

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Publication number
US3541944A
US3541944A US732458A US3541944DA US3541944A US 3541944 A US3541944 A US 3541944A US 732458 A US732458 A US 732458A US 3541944D A US3541944D A US 3541944DA US 3541944 A US3541944 A US 3541944A
Authority
US
United States
Prior art keywords
parts
nozzle
mouth
discharge
portions
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
US732458A
Other languages
English (en)
Inventor
Svend Helge Kristiansen
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.)
Novenco Building and Industry AS
Original Assignee
Nordisk Ventilator Co
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 Nordisk Ventilator Co filed Critical Nordisk Ventilator Co
Application granted granted Critical
Publication of US3541944A publication Critical patent/US3541944A/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
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • 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
    • 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
    • F24F13/1413—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre using more than one tilting member, e.g. with several pivoting blades
    • 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
    • F24F13/1486—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 bearings, pivots or hinges

Definitions

  • a mouthpiece for an air injection channel for ventilation purposes comprising two parts each made of a plate bent into a U-shape, the lateral parts thereof being shaped as circular sections, the two parts'being pivotably mounted with a common axis through points approximately in the centers of the circular sections.
  • the two parts form a tubular structure and are mutually independently adjustable over a range of angular positions so as to adjust both the mouth area and the axial direction of the mouthpiece as a whole.
  • the invention relates to a nozzle for the mouth of an air duct comprising two movable parts.
  • the throttling operation is performed by means of adjustable throttling members disposed in the vicinity of the mouth, while the adjustment of the direction of the discharge may for example be effected by means of a rotatable mouthpiece which can be adjusted in different directions.
  • the present invention aims at providing a nozzle of a very simple design, by means of which it is possible in a satisfactory way to perform the throttling operation as well as the adjustment of the direction of the discharge.
  • each of the two nozzle parts has according to the invention the form of a piece of plate bent along two parallel lines, the portions of which plate located outside the two lines having substantially the shape of sectors of a circle and facing the same side of the portion located between the two lines, while the two parts are pivoted at two opposed lateral edges of a fixed nozzle portion of rectangular cross section with axes of rotation through the centres of their circular sector-shaped portions and with the said portions partially overlapping at both sides of each of the two parts, means being provided for securing the two parts in optional relative positions within an established range of variation.
  • the two parts together form a piece of tube of rectangular cross section.
  • this piece of tube has a constant cross section corresponding to a maximum passage area, but when they are turned more or less towards each other, the cross section is narrowed and may be closed almost completely, so that any throttling desired may be achieved.
  • the limits to the adjustability are first and foremost determined by it being impossible for one of the parts to be turned farther towards the other part than into the position where its portion located between the two parallel lines engages the circular sector-shaped portions on the other part, but it is possible without any difficulty whatever to achieve an adjustability of the direction of discharge of 30 to both sides, and this will, as a rule, be sufficient for practical purposes.
  • the sides of the fixed nozzle portion at right angles to the axes of rotation of the two parts are extended at any rate on their central parts, so that they project somewhat outside the circular bounds of the two parts, and that the means for determining the positions of the two parts are mounted on these outwardsprojecting parts in the form of gripping members engaging over the edges of the overlapping circular sector-shaped portions of both parts.
  • the means for determining the positions of the two parts are mounted on these outwardsprojecting parts in the form of gripping members engaging over the edges of the overlapping circular sector-shaped portions of both parts.
  • FIG. 1 shows a cross section through an embodiment of the nozzle according to the invention
  • the nozzle consists of a short rectangular tubelike piece 1 and two rotatable parts 2 and 3, each of which consists of a piece of plate bent at right angles to the same side along two parallel lines, and where the portions 4 and 5 located outside these parallel lines are circular sector-shaped.
  • the two parts 2 and 3 are accomodated rotatable by means of rivets 6 at two opposed end edges of the tube piece 1 around shafts through the centres of the circular sectorshaped portions of each part 2 and in such a way that these portions on the two parts partially overlap.
  • the two parts also form a tubelike piece of constant rectangular cross section, but the axial direction has been changed, so that a corresponding variation in the direction of discharge is achieved.
  • the direction of discharge can thus be adjusted optionally within this extreme position and the extreme position symmetrical therewith to the opposite side.
  • the limits to the throttling are, however, not independent of the direction of discharge, it being impossible for one of the parts 2 and 3 to be turned farther inwards than to the position in which its rectangular portion engages the circular sectorshaped portions of the other part.
  • the two sides 8 of the rectangular tube piece 1, which sides 8 are parallel to the circular sector-shaped portions 4 and 5, are extended outwards with triangular portions 9 projecting slightly outside the circular edges of the portions 4 and 5, outside which there have in each of the portions been fitted a screw 10 with a nut 11 and washer 12 which, as the washer 12 projects over the circular sector-shaped portions 4 and 5, can serve for securing the said portions in an adjusted position.
  • These triangular portions 9 at the same time serve for covering the zones in which the circular sector-shaped portions 4 and 5 do not overlap at their internal edges.
  • the rectangular tube piece 1 can be secured to the mouth of a ventilation duct, but may also directly form the latter, the circular sector-shaped portions 4 and 5 being in this case accommodated directly in the mouth by means of the rivets 6.
  • the said construction is, whether the tube piece 1 is designed separately or forms part of the mouth, particularly well suited for ventilation ducts terminating under the ceiling in a room to be ventilated, e.g. where such a duct terminates in a number of annularly disposed nozzles in a plane parallel to the ceiling and e.g. so as to be distributed with an angle between them of 30.
  • each of these mouths is provided with a nozzle like that referred to, it is possible to adjust the individual nozzles individually, it being possible to direct them e.g. slightly upwards towards or downwards from the ceiling and, if the occasion should arise, to throttle them suitably.
  • a nozzle for controlling the flow and direction of air from duct comprising:
  • a flow through housing having a singular outlet adapted to be positioned at the exit of an air duct;
  • a first member having a base and two sides; pivotally connected to one side of the flow through housing adjacent the outlet;

Landscapes

  • 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)
  • Nozzles (AREA)
  • Air-Flow Control Members (AREA)
US732458A 1967-06-01 1968-05-27 Nozzle for the mouth of an air duct Expired - Lifetime US3541944A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK288267AA DK122777B (da) 1967-06-01 1967-06-01 Tud til en luftkanals udmunding.

Publications (1)

Publication Number Publication Date
US3541944A true US3541944A (en) 1970-11-24

Family

ID=8116757

Family Applications (1)

Application Number Title Priority Date Filing Date
US732458A Expired - Lifetime US3541944A (en) 1967-06-01 1968-05-27 Nozzle for the mouth of an air duct

Country Status (8)

Country Link
US (1) US3541944A (enrdf_load_stackoverflow)
CH (1) CH491334A (enrdf_load_stackoverflow)
DE (1) DE1778716A1 (enrdf_load_stackoverflow)
DK (1) DK122777B (enrdf_load_stackoverflow)
FR (1) FR1567667A (enrdf_load_stackoverflow)
GB (1) GB1182023A (enrdf_load_stackoverflow)
NL (1) NL156809B (enrdf_load_stackoverflow)
SE (1) SE345516B (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4782999A (en) * 1987-08-21 1988-11-08 Kabushiki Kaisha Toshiba Air conditioning apparatus and grille control method thereof
US5176569A (en) * 1990-04-26 1993-01-05 Societe D'etude Et De Recherche En Ventilation Et Aeraulique S.E.R.V.A. Blower terminal for a building ventilation system
JP2015087061A (ja) * 2013-10-31 2015-05-07 株式会社富士通ゼネラル 空気調和機
US20150330661A1 (en) * 2014-05-14 2015-11-19 H & H Innovations, Llc Methods and Apparatus for Providing an Improved Damper, Boot and Damper Combination, and an Improved HVAC Duct System
US20210033288A1 (en) * 2018-03-30 2021-02-04 Daikin Industries, Ltd. Indoor unit of air conditioner

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH568532A5 (enrdf_load_stackoverflow) * 1973-06-06 1975-10-31 Luwa Ag

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4782999A (en) * 1987-08-21 1988-11-08 Kabushiki Kaisha Toshiba Air conditioning apparatus and grille control method thereof
GB2208543B (en) * 1987-08-21 1992-02-19 Toshiba Kk Air conditioning apparatus
US5176569A (en) * 1990-04-26 1993-01-05 Societe D'etude Et De Recherche En Ventilation Et Aeraulique S.E.R.V.A. Blower terminal for a building ventilation system
JP2015087061A (ja) * 2013-10-31 2015-05-07 株式会社富士通ゼネラル 空気調和機
US20150330661A1 (en) * 2014-05-14 2015-11-19 H & H Innovations, Llc Methods and Apparatus for Providing an Improved Damper, Boot and Damper Combination, and an Improved HVAC Duct System
US9777942B2 (en) * 2014-05-14 2017-10-03 H & H Innovations, Llc Methods and apparatus for providing an improved damper, boot and damper combination, and an improved HVAC duct system
US20210033288A1 (en) * 2018-03-30 2021-02-04 Daikin Industries, Ltd. Indoor unit of air conditioner

Also Published As

Publication number Publication date
GB1182023A (en) 1970-02-25
NL156809B (nl) 1978-05-16
CH491334A (de) 1970-05-31
NL6807734A (enrdf_load_stackoverflow) 1968-12-02
SE345516B (enrdf_load_stackoverflow) 1972-05-29
FR1567667A (enrdf_load_stackoverflow) 1969-04-08
DK122777B (da) 1972-04-10
DE1778716A1 (de) 1971-08-05

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