INLET VENTILATION DEVICE Russian patent published in 2016 - IPC F24F7/00 

FIELD: construction.

SUBSTANCE: invention relates to ventilation systems, and more particularly to devices of natural ventilation of premises. Technical result is achieved in that the air inlet consisting of the air intake pipe installed in a hole of the partition structure and closing the outer end of the intake grille further comprises a mosquito net arranged with the outer end of the air intake pipe and a multilayered heat exchanger, which is composed of profiled metal pipes arranged in each other at a certain distance between them, held in position by the dividing inserts, the transverse dimension of each profiled pipe is sequentially increased until the internal dimension of the air intake pipe, and each profiled pipe is inseparably connected with its diffuser cup.

EFFECT: technical result of the claimed invention is to provide energy-efficient natural ventilation device that provides heated air coming from the street due to the internal heat transfer devices.

2 cl, 1 dwg