High stiffness airoil and method of manufacture
US6190133A · kind A · utility
25Cited by
19References
42Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 14, 1998 |
| Grant date | Feb 20, 2001 |
| Priority date | — |
| Expiry date | Aug 14, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A cast metallic airfoil structure having a high stiffness core positioned therein for increasing the stiffness of the airfoil. In one embodiment, the high stiffness core is preferably formed of gamma titanium aluminde or a titanium metal matrix composite and is metallurgically bonded to the cast metallic airfoil structure. In one form the airfoil structure forms a portion of an integrally bladed rotor, and in a second form the airfoil structure has a dove tail attachment portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.