FIELD: transport engineering; car ventilation, heating and air conditioning systems. SUBSTANCE: proposed device has fan plant and heater housing accommodating tandem-mounted heater control working gate of trough shape with brought out axle of rotation, heat exchanger and air mixing chamber with outlet to air ducts. Vertical rib - turbulator is installed on heater control working gate. This rib provides stall of air flow creating turbulization. Fan plant is arranged at side of heater housing, and rib-turbulator is located strictly opposite to fan plant. EFFECT: provision of installation of fan with larger- diameter impeller, reduced noise in operation, increased pressure and service characteristics, provision of uniform field of velocities in mixing chamber and uniform temperature field at heater outlet. 2 dwg
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