Motorized ventilator group for air conditioning in motor vehicle has centrifugal turbine driven by motor in involute casing

摘要

The motor ventilator group (10) has a centrifugal turbine (12) driven by a motor (16). The air inlet duct (22) delivers tangentially by the action of an involute housing (24), via an outlet duct (26), to an exit conduit (28). The radial plane of the turbine and the involute (32) is inclined at an angle Beta to the axis of the outlet duct so that the air flow (36) expelled by the involute is parallel to the main direction exit flow (34).