FIELD: heating, conditioning.
SUBSTANCE: device is provided for direction of air flow. Cross section of flowing channel is implemented with ability of changing, at least, by one control element. Control element allows casing and gate, installed with ability of rotation with introduction into free cross section of flowing channel, herewith pivot pin of gate is located out of free cross section of flowing channel, and gate allows L-shaped or U- shaped form and contains flat strip, at one end of which it is formed thickening in the form of outlining and with other end of which is connected slightly bent flange, herewith gate is installed with ability of fitting-in to casing so that its flat strip is placed preliminary in plane of external strip of casing, restricting part of flowing channel.
EFFECT: noise reduction.
13 cl, 3 dwg
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