Device for mixing fresh air and heating air and use of the...

B - Operations – Transporting – 01 – F

Patent

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Details

B01F 3/02 (2006.01) B01F 5/04 (2006.01) F24F 13/04 (2006.01) B64D 13/08 (2006.01)

Patent

CA 2646869

The invention relates to a device (30) for mixing fresh air (2) and heating air (4) which comprises a fresh air inlet (32, 42), a heating air supply body (33, 43) for supplying the heating air (4) into the device (30, 40), and a mixed air outlet (36, 46) for delivering mixed fresh air and heating air (6) from the device (30, 40), wherein the heating air supply body (33, 43) comprises a first portion (35, 45) and a second portion (37, 47) which constitute a flow resistance to the fresh air (2), and wherein the second portion (37, 47) is formed as a closed hollow body with a plurality of heating air supply openings (38, 48) and is connected to the first portion (35, 45) at its downstream end, viewed in the flow direction of the heating air. The invention is characterised in that the first portion (35, 45) of the heating air supply body (33, 43) is of streamlined formation. The invention also relates to the use of a device of this kind in a ventilation system installed on board of an aircraft.

L'invention concerne un dispositif (30) de mélange d'air frais (2) et d'air de réchauffage (4), comprenant une admission (32, 42) d'air frais, un corps (33, 43) d'alimentation en air de réchauffage servant à alimenter le dispositif (30, 40) en air de réchauffage (4), et une sortie (36, 46) de mélange d'air servant à refouler un mélange (6) d'air frais et d'air de réchauffage du dispositif (30, 40). Le corps (33, 43) d'alimentation en air de réchauffage comprend une première partie (35, 45) et une deuxième partie (37, 47) servant à offrir une résistance à l'écoulement de l'air frais (2), la deuxième partie (37, 47) prenant la forme d'un corps creux obturé doté d'une pluralité d'ouvertures (38, 48) d'alimentation en air de réchauffage et étant raccordée à la première partie (35, 45) au niveau de son extrémité aval, vue dans la direction d'écoulement de l'air de réchauffage. L'invention est caractérisée en ce que la première partie (35, 45) du corps (33, 43) d'alimentation en air de réchauffage présente une forme fuselée. L'invention concerne également l'utilisation d'un dispositif de ce type dans un système de ventilation installé à bord d'un aéronef.

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