Attachment air inlet configuration for highly loaded single crystal turbine blades
US6474946B2 · kind B2 · utility
11Cited by
5References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 26, 2001 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Feb 26, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/607
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to an improved attachment air inlet configuration for a turbine blade. It defines several modifications that reduce attachment rib concentrated stresses in highly loaded, single crystal turbine blades that cause cracking in conventional blade inlet configurations. It desensitizes rib concentrated stresses to variations in secondary crystal orientation, permitting highly loaded single crystal blades to have random secondary crystal orientation for lower cost, or seed with any secondary orientation needed to solve other blade or manufacturing problems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.