Turbine rotor dovetail structure with splines
US12305533B2 · kind B2 · utility
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15References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2023 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Jun 23, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/941
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fir tree structure is provided and includes a part extending radially inwardly from a rotating part and having an inward taper. The part has a spline profile forming fixing lobes and necks, which are interleaved with the fixing lobes. The spline profile has constantly changing radii of curvature characterized in that the radii of curvature are relatively reduced in high stress locations and relatively increased in low stress locations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.