SYSTEM FOR PREPARATION AND DELIVERY OF AIR TO FLYING VEHICLE COMPARTMENTS Russian patent published in 2004 - IPC

FIELD: aircraft manufacture; crew cabin and instrument compartment heating and cooling systems. SUBSTANCE: proposed system includes hot, cold and mixed air pipe lines and hot air pressure suppressor. Cold air flow divider forms central flow-through and peripheral passages in pipe line cavity which are interconnected by means of mixed air pipe line. Hot air pressure suppressor embracing cold air pipe line on the outside includes first circular and contraction passages and second circular and contraction passages located in succession. First contraction passage is provided with contraction nozzles located at angle relative to longitudinal axis of pipe line. EFFECT: enhanced reliability due to avoidance of locking cold air by hot air in mixing zone. 3 dwg