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:
Aug. 10, 2004
Filed:
Aug. 05, 2002
Gordon Anderson, Baden, CH;
Reinhard Fried, Nussbaumen, CH;
Michael Loetzerich, Horheim, DE;
Markus Oehl, Waldshut-Tiengen, DE;
Stefan Schlechtriem, Taegerig, CH;
Joerg Stengele, Ruetihof, CH;
Alstom Technology LTD, Baden, CH;
Abstract
The invention discloses a process for treating a ceramic protective layer ( ) which is applied to the surface ( ) of a gas turbine part ( ). The roughness of the ceramic protective layer ( ) is reduced at at least one first location ( ), and the original roughness is retained at at least one second location ( ). The roughness is advantageously retained at locations ( ) on a turbine blade or vane ( ) which are at risk of detachment, while the roughness of the remaining surface ( ) is reduced in order to reduce the heat transfer to the surrounding hot-gas flow.