| 摘要 |
PROBLEM TO BE SOLVED: To improve the support rigidity of an electric actuator to suppress the deterioration in controllability of a waste gate valve caused by vibration.SOLUTION: A turbocharger includes a waste gate valve 9 on a side of a turbine housing 1, and an opening position of the valve is controlled by an electric actuator 31. A compressor housing 2 includes a scroll part 21, an intake inlet pipe 22, and an intake outlet pipe 23, and an actuator attachment flange 25 is cast across the intake inlet pipe 22 and the intake outlet pipe 23 integrally with the compressor housing. The electric actuator 31 is attached to a flange surface 25a of the actuator attachment flange 25, and the advance or retreat of a rod 36 is transferred to an arm 14 of the waste gate valve 9 via a relay rod 37. The actuator attachment flange 25 has high rigidity, and therefore the vibration of the electric actuator 31 is suppressed. |
