Turbine blade cascade end wall
US8177499B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 30, 2007 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Jul 29, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D9/041
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In the turbine blades set to a large outflow angle, the performance of the entire turbine is improved by reducing a cross flow generated on the turbine end wall and a whirling up of flow on the suction side of a blade irrespective of the difference of the blade shape, thereby reducing the loss. There is provided a turbine blade cascade end wall positioned on the hub-side and/or the tip side of a plurality of turbine blades arranged in an annular shape, including a first projection having a ridge extending downward from the trailing edge of a turbine blade toward the downstream side gently at the beginning and steeply at the end, and along the suction side of an adjacent turbine blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.