Method for producing a blade by casting and blade for a gas turbine
US8382433B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2011 |
| Grant date | Feb 26, 2013 |
| Priority date | — |
| Expiry date | May 23, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49245
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method is provided for producing a blade, by casting, for a gas turbine. The blade includes an elongate airfoil which extends in a blade longitudinal direction, merges into a blade root at the lower end, has a shroud segment at the blade tip and is pervaded by a single cooling air channel running in the blade longitudinal direction from the blade root to the blade tip. The method includes, during the casting of the blade, the blade material being fed exclusively from the blade root into the mold provided therefor, and the cooling air channel is formed during the casting of the blade by using a single core body, which is provided, at the blade tip, with a local casting cross section increasing element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.