Blade for a gas turbine
US8764395B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2011 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Mar 24, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D5/225
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The blade for a gas turbine includes a blade airfoil having a leading edge and a trailing edge and extending in the blade longitudinal direction up to a blade tip, and at the blade tip the blade airfoil merges into a shroud segment, wherein on the shroud segment a first rib, projecting upwards, is arranged in the flow direction, extending transversely to the flow direction, and upstream of the first rib, in the region of the leading edge of the blade airfoil, a winglet is formed on the shroud segment for guiding of the hot gas flow in this region. With such a blade, a longer service life is achieved by provision being made for direct cooling of the winglet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.