DEFLECTOR Russian patent published in 2007 - IPC F24F7/02 F23L17/02 

FIELD: natural extraction of air from the rooms, applicable in ventilation.

SUBSTANCE: the deflector has an outer cylindrical housing, branch pipe with a hood, restrictor, circular shield in the mouth of the branch pipe forming a clearance with the cylindrical housing, all these components are coaxially positioned in the housing. A collector is installed at the inlet to the branch pipe net section from the inner side of the roofing, and additionally installed in the vertical axis of the branch pipe with the hood above it is an air conduct coupled to the Venturi tube with a wind vane fixed to it.

EFFECT: enhanced developed head, maximized use of the wind load, and reduced local-friction coefficient.

3 cl, 1 dwg