Patent ID: 6895750
Filing Date: 2005-05-24
Classification: F01D,F02B,F05D,H02K,Y02T

Abstract:
1. A nozzle vane driving control apparatus of a variable nozzle turbocharger comprising: (A) an actuator for carrying out a driving operation for opening and closing a nozzle vane of a variable nozzle, the actuator including a base having a motor case portion, a motor having a motor shaft to be accommodated in the motor case portion, a pinion coupled to the motor shaft of the motor, an output shaft having a sector gear supported rotatably on the base and mated with the pinion through reduction gears, an output arm fixed to an upper portion of the output shaft and connected to the nozzle vane, and an actuator cover for covering the pinion and the reduction gears; and (B) an electronic control unit for controlling an opening degree of the nozzle vane which is obtained by the actuator, the electronic control unit including a unit body attached removably to a lower end of the base, a control board accommodated in the unit body, a position sensor attached to a lower portion of the output shaft opposite to the control board and serving to detect a rotating position of the output shaft, a connector having a terminal accommodated in the unit body and connecting the motor and the control board, and a unit cover for covering the unit body; wherein the actuator cover, the base, the unit body and the unit cover are removably attached by fastening members and are thus integrated with each other.