EP0132872B1 - Ventilation appliance - Google Patents

Ventilation appliance Download PDF

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Publication number
EP0132872B1
EP0132872B1 EP84200983A EP84200983A EP0132872B1 EP 0132872 B1 EP0132872 B1 EP 0132872B1 EP 84200983 A EP84200983 A EP 84200983A EP 84200983 A EP84200983 A EP 84200983A EP 0132872 B1 EP0132872 B1 EP 0132872B1
Authority
EP
European Patent Office
Prior art keywords
louvres
channel
airstream
base plate
ventilation appliance
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
Application number
EP84200983A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0132872A1 (en
Inventor
Gerard Johannes De Zwart
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.)
de Zwart Gerard Johannes
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0132872A1 publication Critical patent/EP0132872A1/en
Application granted granted Critical
Publication of EP0132872B1 publication Critical patent/EP0132872B1/en
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
    • E06B7/08—Louvre doors, windows or grilles
    • E06B7/082—Louvre doors, windows or grilles with rigid or slidable lamellae

Definitions

  • the invention concerns a ventilation appliance with fixed vertical louvres built up from channel-shaped elements which are attached to each other staggered back to back and placed in a casing in such a way that an airstream is forced in a zig-zag path, whereby the solid and liquid particles existing in the airstream are drained off via the channels of the louvre-part to a bottom plate.
  • Louvres are known from the Greenwood Airvac Product Catalogue L1 page 22. These louvres are meant to catch sand or hard particles in the airstream. The density of sand particles is higher than liquid particles as raindrops or seaspray. The arrangement of the vertical channels is less efficient and has the tendency to disperse liquid particles instead of draining them.
  • the aim of the invention is to eliminate these disadvsantages and to ensure maximum water removal without detriment to the airflow capacity.
  • said channel shaped elements comprise a flat base plate located substantially parallel to the direction of the incoming airstream, first and second side walls projecting perpendicularly from said base plate, the edges of the side walls each terminating in a V-shaped channel-section projecting towards the incoming air-stream with the interior of the channel facing the base plate, said channel section having a watershedding flange directed substantially perpendicularly towards the base plate.
  • Each adjacent group gives rise to an equal unrestricted air passage, whilst the hook-shaped edge formations, each folded inward in the same direction, ensure that the entering airflow is led through the louvre elements with maximum streamlining, whereby the turbulence is kept to a minimum and maximum airflow capacity is assured. Due to the zig-zag path of the main air through-flow the water droplets carried in the airstream will be separated out onto the outer bends by the relatively high centrifugal forces. In this way the optimal conditions are achieved for the apparently conflicting requirements of maximum ventilation coupled with maximum possible weatherproofing.
  • the invention is further illustrated below by means of a drawing in which a number of examples of possible forms of construction of the ventilation appliance are shown according to the invention.
  • Figure 1 is a perspective view of a construction of a ventilation appliance in a possible mode of operation.
  • Figure 2 is a lateral section through a louvre 90 depicted in a possible operating mode.
  • the louvre is a part manufactured from rolled sheet metal and has a flat plate formed part 100 that is provided with a channel-shaped part 101 running along one edge, and another channel-shaped part 102 which runs along the opposite edge of the louvre, interconnected.
  • Parts 101 and 102 are both on the same side of part 100 and have straight sides.
  • Parts 101 and 102 have hooks 103 and 104 on the longitudinal edges of the louvre, in addition, parts 101 and 102 combined form a pair of straight, evenly spaced sides 105 and 106 and these sides are placed at a 90 degree angle to part 100.
  • Parts 103 and 104 form a drainage channel for accumulated water droplets, which are separated out onto part 100 of the louvre by centrifugal forces.
  • the side 108 of parts 103 and 108 ensures that the separated water droplets are not re-entrained into the airstream 109 in case of turbulence occurring in parts 103 and 104.
  • Figure 3 is a partial longitudinal section through a ventilation appliance provided with louvres according to the invention, whereby a group 107 of louvres 90, as applied in Figure 2, arranged in a staggered opposition, while their backs 100, also staggered, are fixed by means of a rivet and/or spot-welding 110.
  • the louvres 90 of group 107 form together a defined zig-zag pattern which is caused by the shape of parts 103 and 104 thus creating an optimal passage of air.
  • the parts 103 and 104 of the louvres in group 107 form drainage channels with inlet opening 123 which runs along the longitudinal edges of the louvres 90 in order to collect and drain water droplets which have been separated by the tangential action through airways 111 and deposited on the louvres 90.
  • Channels 103 and 104 are connected at the end (underneath) with the bottom plate 112 in order to drain the water to outside.
  • Figure 4 shows a lateral section through the line IV-IV of Figure 3.
  • the louvres 90 are fixed to the top plate 113 and bottom plates by means of supports 114 and 115.
  • the side 108 of part 117 ensures that the entrapped water is not driven by wind pressure upward into the space behind it.
  • the side 119 is at an angle of 105 degrees with part 116, and ensures effective drainage of the entrapped water droplets.
  • the part 120 situated on the front edge of louvres 90, forms a windbreak which aims to prevent wind-driven up-flow of the entrapped water droplets.
  • the presence of windbreak 120 causes a pocket of still air directly behind part 120.
  • the drainage of the entrapped water droplets is accelerated by the dynamic pressure from outside (121).
  • windbreak 120 combined with side 119 forms a drain 122 which can be connected into a central drain if necessary.
  • Figure 5 shows a partial longitudinal section through a ventilation appliance provided with louvres as according to the invention as in Figure 3, but including a third louvre 90 with a hook-shaped back-fold formation on one longitudinal edge 103 and at the same time fixed by the backs 100 by means of a rivet and/or spot welding 110.
  • a ventilation appliance equipped with louvres as in Figure 5 is primarily completely resistant to extreme weather conditions.
  • the louvres can also be extruded or manufactured in another suitable manner, and furthermore in any suitable material.
  • the louvres can additionally be made out of plastic sheeting.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Air-Flow Control Members (AREA)
  • Blinds (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
EP84200983A 1983-07-28 1984-07-06 Ventilation appliance Expired EP0132872B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8302685A NL8302685A (nl) 1983-07-28 1983-07-28 Ventilatie-inrichting.
NL8302685 1983-07-28

Publications (2)

Publication Number Publication Date
EP0132872A1 EP0132872A1 (en) 1985-02-13
EP0132872B1 true EP0132872B1 (en) 1989-01-11

Family

ID=19842211

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84200983A Expired EP0132872B1 (en) 1983-07-28 1984-07-06 Ventilation appliance

Country Status (4)

Country Link
EP (1) EP0132872B1 (nl)
DE (1) DE3476095D1 (nl)
NL (1) NL8302685A (nl)
NO (1) NO842931L (nl)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3703716A1 (de) * 1987-02-06 1988-08-18 Hoesch Ag Vorrichtung zur sicheren abdeckung von luftoeffnungen in sonderfahrzeugen
HRP20100683B1 (hr) * 2010-12-09 2014-05-09 Blago Brkić Štitnik od padalina
WO2013018005A2 (en) * 2011-07-29 2013-02-07 Insol Limited Louvre member

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1678844A (en) * 1924-05-31 1928-07-31 Blaw Knox Co Fluid separator
GB1045132A (en) * 1964-01-08 1966-10-12 British Railways Board Improvements relating to air-inlet louvres
GB1404451A (en) * 1971-04-30 1975-08-28 Colt Int Ltd Ventilators
US4064670A (en) * 1976-10-04 1977-12-27 American Warming And Ventilating Inc. Rainproof louver
NL7707029A (nl) * 1977-06-24 1978-12-28 Colt Int Holdings Ventilator.

Also Published As

Publication number Publication date
NL8302685A (nl) 1985-02-18
EP0132872A1 (en) 1985-02-13
DE3476095D1 (en) 1989-02-16
NO842931L (no) 1985-01-29

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