Bucket and wheel dovetail connection for turbine rotors
The present invention relates to steam turbine rotors, and more particularly to dovetail connections between steam turbine rotor wheels and steam turbine buckets. A multiple hook dovetail connection for connecting a rotor wheel and a bucket for a turbine rotor that permits the use of wider vanes at...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The present invention relates to steam turbine rotors, and more particularly to dovetail connections between steam turbine rotor wheels and steam turbine buckets.
A multiple hook dovetail connection for connecting a rotor wheel and a bucket for a turbine rotor that permits the use of wider vanes at the ends of the buckets without changing the size of the wheel and the other existing components of the turbine. The dovetail connection comprises a male dovetail component and a female dovetail component. The male dovetail component includes a plurality of hooks. Each of the hooks includes a crush surface, a neck and an angle formed between the crush surface and the neck. These books are dimensioned in accordance with at least one of the included tables. |
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