| 摘要 |
PURPOSE:To get the supporting structure of a highly reliable guide vane, by dividing a support ring into two parts, a bottom ring and an upper discharge ring, while securing the bottom ring and an outer return vane to a staring tight enough. CONSTITUTION:The part of a conventional support ring 9' securing a guide vane 8 is divided into two parts, i.e. a bottom ring 9 and an upper discharge ring 10, and the bottom ring 9 required to support the guide vane 8 most rigidly is secured tight to a staying 7 being stable in structure in advance, then both inner and outer return vanes 11 and 12 are connected fast to the staying 7. As doing like this, the guide vane 8 is supported in a state of keeping sufficient strength capable of warding off any damage to performance and operatability. |
