A system for supplying air to a room

a technology a system is applied in the field of systems for supplying air to a room, and achieves the effect of low air volum

Inactive Publication Date: 2018-02-08
AIRMASTER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes two configurations for combining air streams in a room. In the first configuration, the air streams are directed towards the floor to ensure a smooth delivery of air. In the second configuration, the air streams are directed more horizontally, allowing for a more even distribution of air in the room. This second configuration is suitable for supplying low volumes of air while still achieving the desired distribution.

Problems solved by technology

In such cases it is a challenge to ensure that the inlet air stream jet maintains comfortable draft-free conditions for the occupants and at the same time travels the full length of the room, meaning that the “throw” be kept at a level suitable for the room in question.

Method used

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  • A system for supplying air to a room
  • A system for supplying air to a room

Examples

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Embodiment Construction

[0020]In FIGS. 1, 3 and 5 are shown two inlet openings 10, 11 for supplying air mounted in a wall 20 of a room near the ceiling 21 and separated from each other by a horizontal distance d, e.g. by 2-3 times the largest horizontal dimension of the inlet openings. Alternatively, the inlet openings 10, 11 may arranged in a housing wall of a ventilation or air conditioning apparatus suspended from the ceiling or as a floor standing unit which does not require a wall of the room for being supported.

[0021]Each opening 10, 11 has a geometrical size that results in an essentially three-dimensional jet of the inlet air with e.g. a circular or oval cross section, as opposed to a mainly two-dimensional plane jet. The inlet openings 10, 11 are shown having a rectangular opening, but the openings may have any other suitable shape.

[0022]In FIGS. 5, 6 and 7 is shown that the inlet openings 10, 11 have a mechanical arrangement, here in the form of a set of adjustable baffles 12, for 10 changing the...

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PUM

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Abstract

A system for supplying air under the ceiling of a room comprising a pair of air inlet openings arranged side by side and configured to supply a pair of air streams into the room along the ceiling. The pair of air inlet openings are controllable to assume a first configuration where the supplied pair of air streams have first air stream directions spanning a first span angle and form a first angle with the ceiling, and the pair of air streams are substantially distinct air streams; and a second configuration where the supplied pair of air streams have second air stream directions spanning a second span angle smaller than the first span angle and form a second angle with the ceiling and are directed lower than in the first configuration, and the pair of air streams combine to form a combined air stream.

Description

FIELD OF THE INVENTION[0001]This invention relates generally to heating, ventilation and cooling systems for use in buildings. In particular, the invention relates to systems for supplying air to a room.BACKGROUND OF THE INVENTION[0002]When supplying fresh air to a room for comfort purposes (improvement of air quality and / or modification of room temperature), it is desirable that occupants in the room do not perceive the air flow as an uncomfortable draft. For this purpose, the shape and size of the opening through which the air is supplied to the room is critical.[0003]Often, one makes use of the so-called “Coanda effect” for securing draft-free conditions. In brief, the Coanda effect is the tendency of a fluid jet to be attracted to a nearby surface, or vice versa. In air conditioning, the Coanda effect is exploited to increase the throw of e.g. a ceiling mounted diffuser. Because the Coanda effect causes air discharged from the diffuser to “stick” to the ceiling, it has a longer ...

Claims

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Application Information

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IPC IPC(8): F24F13/075
CPCF24F13/075F24F2221/28F24F13/06Y02B30/70
InventorBJORN, ERIK
OwnerAIRMASTER