| 摘要 |
A centripetal turbine rotor has ceramic blades with integral blade roots of arcuate axial section which are clamped axially between two supporting elements mounted on a common shaft so that the ceramic blade roots are maintained in compressive stress along their arcuate, radially inwardly convex, profiles, opposing centrifugal strain in the blade roots. Cooling air may be supplied along axial channels in one hub to an internal chamber within the blade roots and may thence flow outwardly into the gases flowing through the turbine.
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