| 摘要 |
PURPOSE:To suppress to the minimum a clamping force applied to a turbine shaft to perform the torque transmission function and axial locating function by separate individual parts. CONSTITUTION:Two sets of width across flat parts are provided at a turbine shaft 3. One-width across-flat parts 3b engage width across-flat parts at the inner diameter part of a thrust collar 4, and each of other width across-flat parts 3a is engaged with the inner diameter part 10a of a washer 10. The projection 10c of the washer 10 is fitted in a recessed part 6c of an impeller 6. The torque from the turbine shaft 3 is transmitted to the impeller 6 without depending upon the clamping force of a nut 7. A spring washer 9 acts to constantly press the washer 10 onto the impeller. |
