FAN ASSEMBLY Russian patent published in 2018 - IPC F24F13/26 

FIELD: non-displacement compressors and pumps.

SUBSTANCE: nozzle for a fan assembly, comprising an air intake; an air outlet; an interior passage for conveying air from the air inlet to the air outlet, an annular inner wall, an outer wall extending around the inner wall. Interior passage is located between the inner wall and the outer wall. Inner wall at least partially defines a bore through which air from outside the nozzle is drawn by air emitted from the air outlet. Air outlet is arranged to direct air over an external surface at least partially defining the bore. Flow control port is located downstream from that surface. Flow control chamber is provided for conveying air to the flow control port.

EFFECT: control mechanism selectively enables a flow of air through the flow control port to deflect an air flow emitted from the air outlet.

31 cl, 9 dwg