EP0558618B1 - Intake air means - Google Patents

Intake air means Download PDF

Info

Publication number
EP0558618B1
EP0558618B1 EP92900849A EP92900849A EP0558618B1 EP 0558618 B1 EP0558618 B1 EP 0558618B1 EP 92900849 A EP92900849 A EP 92900849A EP 92900849 A EP92900849 A EP 92900849A EP 0558618 B1 EP0558618 B1 EP 0558618B1
Authority
EP
European Patent Office
Prior art keywords
intake air
shell component
material sheet
holes
air means
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
EP92900849A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0558618A1 (en
Inventor
Kaarlo Jeven Oy Korhonen
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.)
Jeven Oy
Original Assignee
Jeven Oy
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 Jeven Oy filed Critical Jeven Oy
Publication of EP0558618A1 publication Critical patent/EP0558618A1/en
Application granted granted Critical
Publication of EP0558618B1 publication Critical patent/EP0558618B1/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
    • F24F13/068—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser formed as perforated walls, ceilings or floors
    • 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
    • F24F13/24—Means for preventing or suppressing noise

Definitions

  • the present invention concerns an intake air means, as defined in the preamble to Claim 1 (See US-A-3.426.512).
  • intake air means comprising a chamber with vertical columnar configuration and of which the cylindrical outer shell is perforated.
  • the air is introduced in the intake air means through an entry port on the upper end of the chamber, and it is conducted further from the chamber into the air-conditioned space, through said outer shell.
  • the aim of the invention is, among other things, to eliminate the drawbacks cited above, and to achieve significant simplification of the structural design of the intake air means. This is achieved with the features of the invention according to claim 1.
  • the material sheet is fixed to a frame-like body structure which is accommodated within the intake air chamber.
  • the advantages of the intake air means of the invention include: simple construction of the shell component, at the same time serving to equalize the pressure and to direct the air flow very uniformly into the space that is being ventilated, as well as efficiently damping the noise associated with ventilation. It is furthermore an advantage that servicing and maintenance of the intake air means is facilitated, owing to simple construction.
  • the intake air means depicted in Fig. 1 comprises an intake air chamber 2, which is encircled by a cylindrical shell component 3.
  • the shell component 3 is in this embodiment provided with holes 4 on all sides.
  • the aggregate surface area of the holes 4, related to the surface area of the shell component 3, is advantageously within 10 to 25% but may be up to 50%.
  • the intake air means 1 further comprises an intake connector 5 and connects with an air duct 7 of the ventilation system through the intake port 6 associated with this connector. Air is introduced through the duct 7 of said system and through the intake connector 5, into the intake air chamber 2, from where air is further distributed through the holes 4 of the shell component into the indoor space.
  • the shell component 3 of the intake air means 1 is shaped of comparatively light, self-supporting and sound-deadening material sheet.
  • This material sheet is formed of foamed plastic or foamed rubber material.
  • Sheet material of this kind is flexible, whereby it is comparatively convenient to be shaped from a rectangular sheet blank to become the curved, and particularly cylindrical, component of the intake air means of Fig. 1.
  • the thickness of such sheet material is advantageously on the order of 10 mm at least, in which case the shell component 3 does not necessarily require any coherent supporting structure: it retains the shape in which it has been set, by its own inherent rigidity.
  • the diameters d of the holes 4 in the sheet of the shell component 3 are at a maximum twice the thickness s of the sheet.
  • the holes 4 are then elongated and serve efficiently to direct the air flow fed into the intake air chamber through its upper part, outward at right angles from the shell component 3.
  • the output flow from the intake air means 1 is therefore uniform and coherent in all directions.
  • this ratio is in the range from 1 to 2. It should be noted, however, that with small holes and at comparatively small hole areas the differential pressure between the intake air chamber 1 and the ventilated space 2 increases, whereby the air quantity per unit time supplied into said space will also be relatively minor. On the other hand, the expedient of increasing the diameter d of the holes 4 also increases the thickness s of the shell component.
  • the shell component 3 of the intake air means 1, or the material sheet is attached to a frame-like body structure 8 which is fitted into the intake air chamber 2.
  • the body structure 9 comprises two straight supports 8a,8b parallelling the shell component 3, a first flange part 8c, on which the intake connector 5 is disposed, and a second flange part 8d, with the aid of which the bottom part 8d of the intake air chamber 2 has been formed.
  • the second flange part 8d is a solid disk.
  • the material sheet constituting the shell component 3 is disposed around the frame-like body component 8 and secured to the end flanges 8c,8d.
  • the joint 9 of the shell component 3. that is of the material sheet is preferably disposed in conjunction with a longitudinal support 8a. At this joint 9, the shell component 3 is fixed to the body component 8, for instance by means of a fixing element 10 longitudinal to the means and to the support 8a, this fixing element being an elongated plate. This is preferably secured to the support 8a with the aid of screws.
  • the shell component 3 of the intake air means 1 does not necessarily need any continuous, rigid supporting plate.
  • the shell component is rigid enough in itself to retain its shape on the body component 8. It is however possible, when required, to provide on the outside surface of the intake air means, or adjacent thereto, a thin protective plate 11 (interrupted lines in Fig. 2) consisting e.g. of metal and covering the shell component totally or in part. This plate may be similarly perforated as the shell component 3.
  • the purpose with this protective plate is to prevent damage to the intake air means through external agents, e.g people bumping against it, in case the intake air means has been mounted in the space to be ventilated and within the reach of humans in the room, such as close to floor level.
  • the protective plate also aims to give the architect free hands in designing the scenery in the space that is being ventilated.
  • the appearance and shape of said protective plate can be freely varied without causing any detriment to the function of the intake air means, particularly when the amount of perforation is greater than that of the shell component.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Duct Arrangements (AREA)
  • Surgical Instruments (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)
  • Gas Separation By Absorption (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Glass Compositions (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
EP92900849A 1990-11-30 1991-11-29 Intake air means Expired - Lifetime EP0558618B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI905911A FI94905C (fi) 1990-11-30 1990-11-30 Tuloilmalaite
FI905911 1990-11-30
PCT/FI1991/000366 WO1992009855A1 (en) 1990-11-30 1991-11-29 Intake air means

Publications (2)

Publication Number Publication Date
EP0558618A1 EP0558618A1 (en) 1993-09-08
EP0558618B1 true EP0558618B1 (en) 1996-02-14

Family

ID=8531497

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92900849A Expired - Lifetime EP0558618B1 (en) 1990-11-30 1991-11-29 Intake air means

Country Status (6)

Country Link
EP (1) EP0558618B1 (fi)
AT (1) ATE134262T1 (fi)
DE (1) DE69117192D1 (fi)
DK (1) DK0558618T3 (fi)
FI (1) FI94905C (fi)
WO (1) WO1992009855A1 (fi)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4233932A1 (de) * 1992-10-09 1994-04-14 Nickel Gmbh Heinrich Vorrichtung zur Laminarisierung raumlufttechnischer Anlagen
SE502954C2 (sv) * 1994-09-14 1996-02-26 Softair Ab Anordning vid ett tilluftsdon innefattande perforerad cylindermantel

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3426512A (en) * 1967-06-28 1969-02-11 Alexander G Nesher Ventilation device for producing laminar flow

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE756099A (fr) * 1969-09-15 1971-02-15 Nesher Alexander G Appareil de reglage d'ecoulement laminaire
SE443222B (sv) * 1982-03-03 1986-02-17 Bahco Ventilation Ab Tilluftsdon
SE445069C (sv) * 1983-12-05 1991-10-07 Stifab Ab Tilluftsdon
DE3711506A1 (de) * 1987-04-04 1988-10-20 Helmut Golf Porenlueftungskanal zur zugluftfreien zufuehrung von frischluft in landwirtschaftlichen stallungen, in wohn- und lagerraeume, sowie in industriehallen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3426512A (en) * 1967-06-28 1969-02-11 Alexander G Nesher Ventilation device for producing laminar flow

Also Published As

Publication number Publication date
ATE134262T1 (de) 1996-02-15
WO1992009855A1 (en) 1992-06-11
EP0558618A1 (en) 1993-09-08
DK0558618T3 (da) 1996-07-08
FI905911A0 (fi) 1990-11-30
FI94905C (fi) 1996-11-05
DE69117192D1 (de) 1996-03-28
FI905911A (fi) 1992-05-31
FI94905B (fi) 1995-07-31

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