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:
Oct. 15, 2002
Filed:
Nov. 30, 2000
Ibrahim El-Nashar, Kloten, CH;
Beat Von Arx, Trimbach, CH;
Bernhard Weigand, Filderstadt-Sielmingen, DE;
Hartmut Haehnle, Küssaberg, DE;
Rudolf Kellerer, Waldshut-Tiengen, DE;
Alstom (Switzerland) Ltd, Baden, CH;
Abstract
In an air-cooled turbine blade ( ) which has a shroud-band element ( ) at the blade tip, the shroud-band element ( ) extending transversely to the blade longitudinal axis, hollow spaces ( ′) for cooling being provided in the interior of the shroud-band element ( ), which hollow spaces ( ′) are connected on the inlet side to at least one cooling-air passage ( ) passing through the turbine blade ( ) to the blade tip and open on the outlet side into the exterior space surrounding the turbine blade ( ), the hollow spaces ( ′) and the shroud-band element ( ) are matched to one another in shape and dimensions in order to reduce the weight of the shroud-band element ( ).