DEVICE FOR CONTROL OF AIR FLOW AND METHOD OF CONTROL OF DIRECTION OF AIR FLOW Russian patent published in 1997 - IPC

FIELD: air-conditioning and ventilation systems. SUBSTANCE: device for control of direction of air flow includes several blade members for setting the outward flow of air in required direction, unit for turning blade members, unit for measuring angle of turn of blade members and unit for determination of present angle of turn of blade members by signal from angle measuring unit and for control of turning unit. Blade turning unit includes motor provided with gear connected with its axle, sliding part with toothed racks on inner and outer surfaces and several gears connected with shaft of blade members and thrown into engagement with inner toothed rack, respectively. Angle measurement unit includes variable resistor whose resistance changes in proportion with angle of turn of blade members. EFFECT: enhanced efficiency. 6 cl, 6 dwg