The text of the original in Russian 

Ejector system of natural ventilation multi-storey buildings

The traditional system of exhaust ventilation of multi-storey buildings with 
natural motivation is the main channel to a height of buildings and 
floor thereof. Such a system does not guarantee the hydraulic resistance, which causes the flow of air from the lower to the upper floors is strictly prohibited in this hygienic due to the spread of odors and infections 
  It is no coincidence that the residents on the upper floors set the exhaust fan, which locks the extract from the premises for the lower floors. 
The proposed system consists of a main channel and the support. In 
main channel is composed of branches from the premises, situated at the lower 
floors to the neutral line diagram davleniy.Vspomogatelny channel 
connect with the space the upper half of the building. The main channel 
located inside the support. Top of the building are connected to channels 
special ejector chamber. Since the height of the main canal is almost twice as much, the pressure being much higher than inside 
auxiliary channel. In the area of sodineniya arises ejection and 
creates conditions for further extraction of the auxiliary channel 
That ensures the stability of the entire system, especially in warm weather 
  (application for the invention № 2007133633 on 07 09 2007)