AIR SUPPLY UNIT Russian patent published in 2015 - IPC F24F3/00 

FIELD: heating.

SUBSTANCE: invention relates to an air supply unit. It includes air supply chamber (10), at least one mixing chamber (20, 20a, 20b), nozzles (60, 60a, 60b) or a nozzle gap through which fresh air flow (L1) passes from air supply chamber (10) to at least one above said mixing chamber (20, 20a, 20b), at least one suction chamber (40, 40a, 40b), to which circulating air flow (L2) passes from space of the ventilated room, at least one outlet hole (25, 25a, 25b), through which combined air flow (LA) formed at least in one above said mixing chamber (20, 20a, 20b) from fresh air flow (L1) and circulating air flow (L2) passes to the space of the ventilated room; with that, the air supply unit also includes the following: at least one air flow control (70, 70a, 70b, 70c, 80, 90), through which additional air flow (L3) passes from air supply chamber (10) at least to one above said suction chamber (40, 40a, 40b), from which additional air flow (L3) is sucked together with circulating air flow (L2) at least to one above said mixing chamber (20, 20a, 20b).

EFFECT: use of an air flow control allows increasing total air flow velocity of an air supply unit by 1-6 times in comparison to minimum air flow velocity.

9 cl, 10 dwg