The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 27, 2012
Filed:
Sep. 17, 2010
Erich Kreiselmaier, Stetten, CH;
Jose Anguisola Mcfeat, Lauchringen, DE;
Christoph Nagler, Zurich, CH;
Sergei Riazantsev, Stetten, CH;
Brian Kenneth Wardle, Brugg-Lauffohr, CH;
Erich Kreiselmaier, Stetten, CH;
Jose Anguisola McFeat, Lauchringen, DE;
Christoph Nagler, Zurich, CH;
Sergei Riazantsev, Stetten, CH;
Brian Kenneth Wardle, Brugg-Lauffohr, CH;
Alstom Technology Ltd., Baden, CH;
Abstract
A stator blade for a gas turbine includes a blade airfoil extending in a longitudinal direction of the blade and is delimited by leading and trailing edges. The stator blade includes a shroud, whose inner side is exposed to hot gas which flows through the gas turbine. A hook-like fastening element for fastening the stator blade on a casing of the gas turbine projects outwards in the region of the trailing edge. The fastening element has a locating slot above the trailing edge for fixing a heat shield, which is connected to the shroud in the flow direction of the hot gas. A cavity is provided on the shroud between the locating slot for the heat shield and the trailing edge of the blade airfoil for reducing the thermal and mechanical stresses in the region of transition between the trailing edge and shroud.