METHOD OF LIMITING HEAT TRANSFER THROUGH BUILDING WALL OPENING AND SYSTEM OF CREATING AIR SCREEN BEFORE SAID OPENING Russian patent published in 2009 - IPC F24F9/00 

FIELD: mechanics, heating.

SUBSTANCE: proposed method of limiting heat transfer through wall opening, for example door opening comprises forming, on the opening first edge, of inlet air flow passing through blower nozzle, while, on the opening second edge, sucking-in air flow is formed passing through suck-in hole to make an air screen between the first and second opening edges. The said air screen consists of air jet coming from blower nozzle into sucking-in hole and induced air flows formed on both sides of air jet. Note that aforesaid induced air flow formed at a time with air jet is turned towards the direction opposite to that of air jet to form a counter back flow. The invention covers also the system of creating air screen comprising a deflector designed to turn around the induced airflow.

EFFECT: reduced heat leakage.

10 cl, 2 dwg