AIR FEEDING DEVICE Russian patent published in 2009 - IPC F24F13/02 

FIELD: heating.

SUBSTANCE: invention relates to ventilation, namely to the device concerned with the ventilation by air delivery, mainly with cooling dampers. Technical result is achieved by the air feeding device comprising an elongated channel. The channel is equipped by the nozzles distributed along the channel and serving for the flow of the delivered air at the device usage. Additionally the channel comprises two parts (1, 2) which are fitted with the parts contacting with each other along the longitudinal channel direction. Nozzles between the channel parts are formed by the channel parts adjacent to the contacting parts by the units placed along the border between the channel parts at least on one of the channel parts. The nozzle size is specified by the position of the channel parts (1, 2) in respect to each other. The channel parts (1, 2) can move in respect to each other so that the channel parts (1, 2) can slide in respect to each other near the contacting parts.

EFFECT: providing for the maximal possible conversion of operating static pressure into the dynamic pressure.

17 cl, 20 dwg