Turbine blade having contoured tip shroud
US9494043B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2015 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Jul 31, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/202
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A turbine blade includes an airfoil and a shroud coupled to a tip of the airfoil. The shroud includes a mid portion positioned directly above the tip of the airfoil. The mid portion includes a ramped radially outer surface extending from a first edge to a second edge in the direction from a pressure side toward a suction side of the airfoil, the second edge being positioned further radially inward than the first edge. In a first aspect, the shroud may include a curved pressure side portion positioned upstream of the pressure side of the airfoil, the pressure side portion being curved radially inward. In a second aspect, the shroud may include a curved suction side portion positioned downstream of the suction side of the airfoil, the suction side portion being curved radially outward.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.