Gas turbine with a gap blocking device
US8206093B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 21, 2006 |
| Grant date | Jun 26, 2012 |
| Priority date | — |
| Expiry date | Aug 6, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2250/41
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
There is described a gas turbine with a channel wall that limits a flow, said channel wall comprising first and second wall sections, one of the wall sections being part of a combustion chamber of the gas turbine and the other wall section being part of an annular hot gas channel of a turbine unit, and the two adjacent wall sections facing each other with a gap there between. In order to reduce the leakage quantities of blocking gas that protect the gap from the entry of hot gas, it is proposed that blocking element projects from the side of the first wall section into the gap and can be displaced transversely thereto, said blocking element comprising a piston face disposed in the first wall section and a sealing structure lying opposite the piston face, it being possible to press said sealing means against an end sealing section of the second wall section by means of a pressure medium that acts on the piston face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.