Core tied cast airfoil
US6340047B1 · kind B1 · utility
41Cited by
18References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 22, 1999 |
| Grant date | Jan 22, 2002 |
| Priority date | — |
| Expiry date | Mar 22, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22C21/14
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A gas turbine engine airfoil is cast around a core having a plurality of legs to form matching flow channels in the airfoil. The legs have a tie extending therebetween to maintain alignment. And, the tie is relocated along the core span to reduce differential static pressure of the cooling air across the resulting tie hole formed by the core tie.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.