Airfoil shape for a turbine nozzle
US6866477B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2003 |
| Grant date | Mar 15, 2005 |
| Priority date | — |
| Expiry date | Oct 19, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D5/141
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The third stage nozzle has an airfoil profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in Table I wherein X and Y values are in inches and define airfoil profile sections at each distance Z and Z are non-dimensional values within a range from 0.1 to 0.9 convertible to Z distances in inches by multiplying the Z values of Table I within the range by a height of the airfoil in inches. The profile sections at the Z distances are joined smoothly with one another to form the nozzle airfoil shape. The X and Y distances may be scalable to provide a scaled-up or scaled-down airfoil for the nozzle. The nominal airfoil given by the X, Y and Z distances lies within an envelope of ±0.160 inches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.