| 摘要 |
PURPOSE:To mount a servo motor for driving a bottom stage guide vane without badly affecting strength of a building, by driving the bottom stage guide vane with a plurality of the servo motors of small size and small capacity. CONSTITUTION:A bottom stage guide vane 7 is connected to a bottom guide ring 15 through a link 17, and a servo motor 21 is connected between a protrusive part 29 of the ring 15 and a protrusive part 28 of a bottom cover 14, then the vane 7 is driven by a plurality of the motors 21 of small size and small capacity. In this way, the necessity for the wall face notch of a bottom assembly chamber is eliminated, and the servo motor can be mounted without badly affecting strength of a building. |
