EP0211150A2 - Bouche à écoulement en spirales - Google Patents

Bouche à écoulement en spirales Download PDF

Info

Publication number
EP0211150A2
EP0211150A2 EP86105431A EP86105431A EP0211150A2 EP 0211150 A2 EP0211150 A2 EP 0211150A2 EP 86105431 A EP86105431 A EP 86105431A EP 86105431 A EP86105431 A EP 86105431A EP 0211150 A2 EP0211150 A2 EP 0211150A2
Authority
EP
European Patent Office
Prior art keywords
swirl
supply air
outlet according
disk
diameter
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.)
Granted
Application number
EP86105431A
Other languages
German (de)
English (en)
Other versions
EP0211150A3 (en
EP0211150B1 (fr
Inventor
Gottfried Müller
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.)
Schako KG
Original Assignee
Schako Metallwarenfabrik Ferdinand Schad KG
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 Schako Metallwarenfabrik Ferdinand Schad KG filed Critical Schako Metallwarenfabrik Ferdinand Schad KG
Priority to AT86105431T priority Critical patent/ATE44411T1/de
Publication of EP0211150A2 publication Critical patent/EP0211150A2/fr
Publication of EP0211150A3 publication Critical patent/EP0211150A3/de
Application granted granted Critical
Publication of EP0211150B1 publication Critical patent/EP0211150B1/fr
Expired 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

Definitions

  • the invention relates to a swirl outlet according to the preamble of claim 1.
  • Generic swirl outlets are known in which a few, for example four to six, air guide vanes are used in the cylindrical supply air connection piece, which are arranged obliquely with respect to the air flow of the supply air connection piece such that they lie approximately on helical lines. These air guide vanes set the incoming air flowing through the supply air connection into the room in a rotating movement. Due to the rotating movement, the supply air emerging from the swirl outlet is given a centrifugal flow component, so that it contacts the ceiling at a sufficiently high rotational speed as a result of the Coanda effect when the swirl outlet is installed flush with the ceiling.
  • the air guide vanes used in the cylindrical supply air spigot require a minimum length of the supply air spigot, so that the installation options of the swirl outlet are restricted.
  • the insertion of the air guide vanes in the supply air connection makes the manufacture of the swirl outlet complex. Cleaning the swirl outlet is also difficult because of the air guide vanes used in the supply air nozzles.
  • the swirl outlet can only achieve its full effectiveness with the help of the Coanda effect if the swirl outlet is inserted flush into the ceiling.
  • the invention has for its object to provide a swirl outlet that is simple and inexpensive to manufacture and that achieves a high induction effect regardless of its installation conditions.
  • the swirl outlet consists of a cylindrical supply air connector and a swirl disk which is placed on the outlet end of the supply air connector and closes it off. Lamellae are punched into the swirl disk, which are arranged radially in a circular ring and are bent out of the plane of the swirl disk.
  • the Swirl outlet is extremely inexpensive to manufacture, since it only consists of the simply shaped air inlet and the swirl disk as a simple stamped sheet metal part. The entire swirl effect is generated by the swirl disc that closes the supply air connection.
  • the axial length of the supply air nozzle can therefore be adapted as required to the installation conditions, in particular a very short length of the supply air nozzle is sufficient for the swirl outlet to function.
  • the lamellae which are arranged in large numbers and with a small mutual distance on the circular ring, produce a strong rotational movement of the emerging supply air, which is associated with a high induction of the room air.
  • This high induction causes the blown supply air to mix quickly with the room air.
  • Cold air can therefore also be blown in without it being necessary to hold it on the ceiling using the Coanda effect.
  • the swirl outlet must therefore not necessarily be installed flush with the ceiling, which significantly increases its possible uses.
  • the strong induction effect also makes it possible to supply air with a large temperature difference compared to the room air. Due to the large temperature difference, the air conditioning of the room can be achieved with lower supply air volumes. Energy can thus be saved in the air conditioning system and fans of smaller size and lower power can optionally be used.
  • the supply air nozzle uniformly applies supply air to the swirl disk over its entire surface.
  • An optimal air flow through the swirl disk can thus be achieved.
  • the diameter of the supply air connector is somewhat smaller than the diameter of the swirl disk and only widens in the direction of flow to the outer diameter of the circular ring of the lamellae immediately before the swirl disk. This expansion takes place with an essentially constant radius of curvature. Due to this expansion of the supply air connection, the incoming supply air is already directed radially outwards at the edge when it hits the swirl disk. As a result, the outer edge regions of the swirl disk are also acted upon well without disturbing flow separation effects occurring in the edge regions, which deteriorate the air throughput and contribute to the generation of noise.
  • the swirl disk is preferably detachably attached to the outlet-side end of the supply air connection.
  • this is favorable for the production and on the other hand also offers advantages with the built-in swirl outlet.
  • the swirl disc can be easily removed for cleaning.
  • additional or different flow resistances can also be retrofitted to the built-in swirl outlet in the supply air connection, insofar as this is necessary without having to open the ceiling.
  • Supply air spigot and swirl plate can be made of metal or plastic.
  • the supply air connection is preferably a plastic part, while the swirl plate is punched out of metal, for example steel, aluminum, brass or the like.
  • the swirl outlet consists of a supply air connector 10 and a swirl disk 12.
  • the supply air connector 10 is designed as a cylindrical tube that widens at its outlet end with a constant radius of curvature 14 to form a radial, flat section 16 that is perpendicular to the axis of the supply air connector 10.
  • a cylindrical edge section 18 of small axial depth adjoins the flat section 16.
  • the entire supply air connector 10 is preferably made of plastic.
  • the swirl disk 12 is a circular sheet metal disk which is placed on the cylindrical edge section 18 of the supply air connector 10 inserted into the ceiling.
  • the swirl disk 12 extends radially beyond the cylindrical edge section 18 and is fastened outside the edge section 18, preferably snapped onto the outside of the edge section 18.
  • the swirl disk 12 thus completely covers the supply air connector 10, so that there is an elegant appearance from the room side.
  • the seal between the supply air connector 10 and the swirl disk 12 is by ei NEN sealing ring 20 made of rubber or foam, which is inserted on the inside against the cylindrical edge portion 18 between the flat portion 16 of the supply air connector 10 and the swirl disk 12.
  • the fins 22 are punched out along a radial side edge and bent out of the plane of the swirl disk 12 along the other radial side edge in such a way that they protrude into the supply air connector 10 at an angle of approximately 45 ° to the air flow direction.
  • the lamellae 22 have essentially the same width over their entire radial extent, which corresponds approximately to their mean mutual angular distance.
  • the lamellae 22 extend with their radially outer ends to the sealing ring 20, that is to say they engage radially beyond the diameter of the supply air connector 10 in the flat section 16.
  • the diameter of the supply air connector 10 is approximately three quarters of the outer diameter of the circular ring of the lamellae 22.
  • the inner diameter of the The circular ring of the lamellae 22 is selected such that a space which additionally promotes induction with the ambient air remains free inside the air flow emerging from the swirl disc 12.
  • the outer diameter of the circular ring of the fins 22 is approximately 2.5 times the inner diameter of this circular ring.
  • the drawing shows an embodiment of the swirl outlet on a scale of 1: 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Duct Arrangements (AREA)
  • Saccharide Compounds (AREA)
  • Air-Flow Control Members (AREA)
EP86105431A 1985-07-27 1986-04-19 Bouche à écoulement en spirales Expired EP0211150B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86105431T ATE44411T1 (de) 1985-07-27 1986-04-19 Drallauslass.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8521685U 1985-07-27
DE8521685U DE8521685U1 (de) 1985-07-27 1985-07-27 Drallauslass

Publications (3)

Publication Number Publication Date
EP0211150A2 true EP0211150A2 (fr) 1987-02-25
EP0211150A3 EP0211150A3 (en) 1987-05-27
EP0211150B1 EP0211150B1 (fr) 1989-07-05

Family

ID=6783595

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86105431A Expired EP0211150B1 (fr) 1985-07-27 1986-04-19 Bouche à écoulement en spirales

Country Status (3)

Country Link
EP (1) EP0211150B1 (fr)
AT (1) ATE44411T1 (fr)
DE (2) DE8521685U1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0347650A1 (fr) * 1988-06-20 1989-12-27 Siemens Aktiengesellschaft Buse d'aération pour des habitacles, en particulier pour l'habitacle d'un véhicule automobile
EP0392438A2 (fr) * 1989-04-12 1990-10-17 Schako Metallwarenfabrik Ferdinand Schad Kg Dispositif pour l'échappement d'air amené
EP0469369B1 (fr) * 1990-07-30 1994-10-26 Schako Metallwarenfabrik Ferdinand Schad Kg Sortie de plafond
NL1030021C2 (nl) * 2005-09-23 2007-03-26 Nijburg Invest B V Ventilatierooster.
WO2020192077A1 (fr) * 2019-03-26 2020-10-01 广东美的制冷设备有限公司 Générateur d'anneau tourbillonnaire, dispositif de climatisation, unité intérieure et procédé de commande

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3822283A1 (de) * 1988-07-01 1990-01-04 Schako Metallwarenfabrik Drallauslass
DE4108418A1 (de) * 1991-03-15 1992-09-17 Schako Metallwarenfabrik Drallauslass

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2381345A (en) * 1942-06-05 1945-08-07 Alfred L Greenlaw Grill
US2505394A (en) * 1947-05-20 1950-04-25 William H Goettl Ventilating register
EP0129000A2 (fr) * 1983-06-20 1984-12-27 Waterloo Grille Co. Ltd. Diffuseur d'air

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2381345A (en) * 1942-06-05 1945-08-07 Alfred L Greenlaw Grill
US2505394A (en) * 1947-05-20 1950-04-25 William H Goettl Ventilating register
EP0129000A2 (fr) * 1983-06-20 1984-12-27 Waterloo Grille Co. Ltd. Diffuseur d'air

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0347650A1 (fr) * 1988-06-20 1989-12-27 Siemens Aktiengesellschaft Buse d'aération pour des habitacles, en particulier pour l'habitacle d'un véhicule automobile
US4979429A (en) * 1988-06-20 1990-12-25 Siemens Aktiengesellschaft Air outlet for interior spaces, especially for the interior space of a motor vehicle
EP0392438A2 (fr) * 1989-04-12 1990-10-17 Schako Metallwarenfabrik Ferdinand Schad Kg Dispositif pour l'échappement d'air amené
EP0392438A3 (fr) * 1989-04-12 1991-03-06 Schako Metallwarenfabrik Ferdinand Schad Kg Dispositif pour l'échappement d'air amené
EP0469369B1 (fr) * 1990-07-30 1994-10-26 Schako Metallwarenfabrik Ferdinand Schad Kg Sortie de plafond
NL1030021C2 (nl) * 2005-09-23 2007-03-26 Nijburg Invest B V Ventilatierooster.
EP1767877A2 (fr) * 2005-09-23 2007-03-28 Nijburg Investment B.V. Grille de ventilation
EP1767877A3 (fr) * 2005-09-23 2010-07-07 Nijburg Investment B.V. Grille de ventilation
WO2020192077A1 (fr) * 2019-03-26 2020-10-01 广东美的制冷设备有限公司 Générateur d'anneau tourbillonnaire, dispositif de climatisation, unité intérieure et procédé de commande

Also Published As

Publication number Publication date
DE3664234D1 (en) 1989-08-10
EP0211150A3 (en) 1987-05-27
DE8521685U1 (de) 1985-10-03
ATE44411T1 (de) 1989-07-15
EP0211150B1 (fr) 1989-07-05

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