Steam turbine closure bucket attachment
US6755618B2 · kind B2 · utility
5Cited by
14References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2002 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Oct 23, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D5/3046
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A turbine wheel including a male dovetail configuration about substantially an entire periphery of the wheel, interrupted by a notch formed by removal of portions of the male dovetail at a bucket loading location on the periphery of the wheel. A closure bucket adapted for loading onto the wheel includes a root portion, a platform and airfoil, the root portion formed with a pair of radially inwardly extending laterally spaced tangs, the tangs each formed with a pair of radially aligned retaining pin holes, the retaining pin holes located radially inwardly of the male dovetail configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.