| 摘要 |
A one piece axial flow turbine case with an inlet volute and an outlet volute with an axial flow turbine positioned between the inlet and outlet volutes, in which the turbine vanes and blades can be installed or removed from one side of the case without disassembling the two volutes. The one piece turbine case eliminates the mating flange, the flange seal, and the flange bolts required in the two piece turbine volute case. The one piece axial flow turbine case reduces the part count, reduces the weight of the turbine, improves the reliability of the turbine, and improved the performance of the turbine. The annular guide vane assembly with an annular outer shroud having guide vanes extending from the shroud is inserted through an opening of the turbine case. The vane outer shroud extends aft to form an outer shroud for the turbine blades.
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