摘要 |
The invention relates to a regulating device for an actuator arranged in a gas passageway of an internal combustion engine, in particular for a bypass flap arranged in an exhaust turbocharger, having an electrical servomotor (32), a regulating member (34) coupled to the actuator (24) and a multi-gear transmission (33) arranged between the servomotor (32) and regulating member (34). To achieve a large transmission ratio range with a small number of transmission gears, two transmission wheels (37, 38) interact in at least one of the transmission gears (35) via an evoloid toothing (371, 381). |