| 摘要 |
PURPOSE:To facilitate assembly and disassembly by providing chambers on an under cover between runners and making control pipes penetrate a stay vane from an upper cover for opening to a fixed chamber to be used for a part of control pipes. CONSTITUTION:Several numbers of chambers 10 divided along the circumference of an under cover 6 are used for a part of a number of control pipes represented by a seal water-supply pipe 7, and actual pipes are kept divided on the peripheral side of the under cover 6. This construction permits to disassemble the under cover 6 without disassembling control pipes and facilitate to assemble and disassemble a multistage hydraulic machine for adapting for all operation modes. |
