Stress-relieving pocket in turbine nozzle with airfoil rib
US10655485B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2017 |
| Grant date | May 19, 2020 |
| Priority date | — |
| Expiry date | Jan 20, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A turbine nozzle segment includes a radially-inner endwall, a radially-outer endwall, a pair of airfoil-shaped vanes extending between the radially-inner endwall and the radially-outer endwall, and respective reinforcing ribs extending between the pressure and suction sidewalls of the vanes. The back face of the radially-inner endwall and/or the back face of the radially-outer endwall has a pocket formed therein in an area between the pressure sidewall of the first vane and the suction sidewall of the second vane to enhance stiffness distribution between the second vane and the radially-inner endwall and/or radially-outer endwall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.