FORCED-VENTILATION CHAMBER OF CONDITIONING SYSTEM Russian patent published in 2006 - IPC F24F12/00 

FIELD: air ventilation and conditioning.

SUBSTANCE: chamber comprises air sucking well with stair and door, underground ventilation passage, chamber with the nozzle made of solid streamlined bodies, air exhaust well, filter, and forced-ventilation chamber. The system is additionally provided with the by-pass air sucking device with control valve and filter made of alternating layers of metallic grid and unwoven material. The chamber with nozzle receives vibrator. The nozzle is made of a material having higher cool-accumulation capability.

EFFECT: enhanced efficiency.

2 dwg