PLENUM-EXHAUST VENTILATION DEVICE Russian patent published in 1997 - IPC

FIELD: natural ventilation of buildings; mainly stock-rearing buildings. SUBSTANCE: device has vertical exhaust tubular trunk which houses heat exchanger of lesser diameter provided with diaphragm and air splitter in its lower portion and deflector. Tubular heat exchanger is rigidly connected with vane deflector which consists of baffle, horizontal neck and elongated hollow bell mouth directed to opposite sides. Neck is tightly inserted in hollow bell mouth and is rigidly connected with tubular heat exchanger and bell mouth embraces the neck; it is brought in communication with outside atmosphere at outlet and with exhaust trunk at inlet; exhaust trunk is provided with ball bearings in its upper portion fitted over circumference; these bearings are used to give support for vane deflector base for free rotation of deflector in horizontal plane. EFFECT: enhanced reliability. 3 dwg