Turbulator on the underside of a turbine blade tip turn and related method
US7544043B2 · kind B2 · utility
13Cited by
5References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2006 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | Feb 15, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A turbine blade includes a shank portion and an airfoil portion with leading and trailing edges and a radially outer tip. An internal closed-loop cooling circuit is formed within the airfoil portion and includes at least one radial outflow passage and at least one radial inflow passage connected by at least one respective tip turn at the radially outer end of the airfoil portion. At least one tip turn is provided with a single turbulence-enhancement device on an underside of the radially outer tip, projecting into the tip turn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.