AIR DISTRIBUTOR Russian patent published in 2013 - IPC F24F13/06 

FIELD: ventilation.

SUBSTANCE: air distributor includes a cylindrical casing with a diffuser at the outlet, two air inlet slots, which are made on opposite sides of the casing surface. Air ducts (tangentially to the casing surface) are connected to the above slots. Movement of the air entering the casing is provided in one and the same direction. Air is supplied via one air duct from the air conditioning system, and air is supplied from the room via another air duct equipped with an axial fan. Amount of the air supplied from the room, mixed in the casing with the air from the air conditioning system and changing the temperature of the latter is controlled with an automatic control system consisting of a frequency control, a comparison device and two temperature sensors, one of which is installed at the air distributor air outlet, and the other one is installed in the room.

EFFECT: automatic control of temperature difference between plenum air and recirculating air till the specified value of that difference is achieved by changing the amount of air from the room, which is added to plenum air; providing mixing of both air flows and quick damping of velocities of vortex air jets leaving the air distributor.

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