To provide a multiplex hook dovetail joint for connecting the rotor wheel 12 to the bucket 16 of a turbine rotor which allows a wider vane to be used at the end of the bucket 16 without changing the sizes of the wheel 12 and the other existing component parts of a turbine.
This dovetail joint comprises a male dovetail component part 14 and a female dovetail component part 18. The male dovetail component part 14 comprises a plurality of hooks 41, 42, and 43. Each of the hooks 41 to 43 comprises crush surfaces 62, 68, and 73, flange parts 63, 69, and 74, crush surfaces 62, 68, and 73, and angles B', D', and F' formed between the flange parts 63, 69, and 74. The dimensions of the hooks 41 to 43 are determined according to at least one of the presented tables.
| JPS55115660 | SEALING DEVICE |
| WO/2019/046006 | ADVANCED GEOMETRY PLATFORMS FOR TURBINE BLADES |
| WO/2014/099212 | TURBINE UNDER PLATFORM AIR SEAL STRIP |
CHIU RONG-SHI PAUL
OMIDVAR BIJAN
