High coverage shaped diffuser film hole for thin walls
US5382133A · kind A · utility
90Cited by
10References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1993 |
| Grant date | Jan 17, 1995 |
| Priority date | — |
| Expiry date | Oct 15, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23P2700/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A film cooling passage through the external wall of a hollow airfoil having in serial flow relation a metering section and a diffusing section, the diffusing section characterized in that it has four inward facing surfaces that define a passage having a generally rectangular cross-section and an outlet over which a hot gas stream flows in a "downstream" direction. One of the surfaces of the diffusing section is generally "downstream" of the other surfaces, and this surface defines a section of a circular cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.