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. 02, 2018
Filed:
Dec. 16, 2015
Ansaldo Energia Switzerland Ag, Baden, CH;
Martin Balliel, Bassersdorf, CH;
Stefan Andreas Retzko, Zurich, CH;
Frank Gersbach, Ehrendingen, CH;
Igor Tsypkaykin, Turgi, CH;
Julien Nussbaum, Battenheim, FR;
Marco Lamminger, Ennetbaden, CH;
Cornelia Santner, Untersiggenthal, CH;
ANSALDO ENERGIA SWITZERLAND AG, Baden, CH;
Abstract
A rotating blade for a gas turbine includes an airfoil extending in a longitudinal direction and having a leading edge and a trailing edge, whereby the airfoil is bordered at its outer end by a tip shroud, whereby the airfoil includes two or more internal passages, which run in longitudinal direction and are separated by solid webs, and whereby a plurality of shroud fins is arranged on top of the tip shroud to improve gas sealing against a corresponding stator heat shield. The stability and life time of the blade can be enhanced by selecting a position of each of the shroud fins to be exclusively above one of the webs and/or a leading edge wall.