Ceramic blades for turbomachines
US4563125A · kind A · utility
23Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1983 |
| Grant date | Jan 7, 1986 |
| Priority date | — |
| Expiry date | Dec 14, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The blade comprises a metal web (1) surrounded by a refractory ceramic casing (2). The central web (1) is provided with at least one ventilation passage (4) in which flows a small amount of ventilation air. The zones where there is contact between the ceramic casing (2) and the central metal web (1) are provided with cooling cavities (5) in which cooling air flows at a high rate so as to establish a forced cooling condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.