Momentum preserving film-cooling shaped holes
US7997867B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2007 |
| Grant date | Aug 16, 2011 |
| Priority date | — |
| Expiry date | Jun 15, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system for cooling includes a surface to be cooled and at least one film-cooling hole within the surface for allowing a film cooling jet of coolant to reach the surface, each of the at least one film-cooling hole having a diameter. The at least one film-cooling hole is shaped to preserve momentum of the coolant and assist in preventing entrainment of the hot gases. A method of cooling a surface proximate hot gas includes providing coolant through a w-shaped film-cooling hole to form a cool film between the hot gas and the surface and preserving momentum of the coolant using the w-shaped film-cooling hole to assist in preventing entrainment of the hot gases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.