DEVICE FOR EXTRACTION OF POLLUTED AIR FROM PREMISES Russian patent published in 2011 - IPC F24F7/02 F23L17/02 

FIELD: heating, ventilation.

SUBSTANCE: device is designed for natural channel ventilation of buildings and structures for various purposes: residential, public, industrial, as well as cellars, basements, garages and others. The device is an ajutage in the form of a Venturi pipe, consisting of a contractor, a throat and a diffuser, a throat channel, which is connected to the inner cavity of the vent-pipe (mine) with a socket on the slide bed on its side surface.

EFFECT: air exchange with the environment is increased; use of ventilators for mechanical removal of air environment is excluded, ie, it contributes to saving of material resources and energy resources.

2 dwg