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. 03, 2006
Filed:
Oct. 06, 2004
Rene Bachofner, Untersiggenthal, CH;
Wolfgang Kappis, Fislisbach, CH;
Rene Bachofner, Untersiggenthal, CH;
Wolfgang Kappis, Fislisbach, CH;
ALSTOM Technology Ltd., Baden, CH;
Abstract
A fixing method for blading of a fluid-flow machine, in which first of all the turbine blades () are inserted into the fastening slot () of a rotor () or stator until only the intermediate fitting gap is left, into which two insert elements designed as end piece halves () are then inserted. After that, a wedge () is inserted into the gap between the end piece halves (), and the end piece halves () together with the wedge () are welded by a joining weld (). With the method according to the invention and the arrangement according to the invention, axial forces which can warp the rotor () and thus cause increased rotor vibrations are advantageously avoided. The invention also relates to a fixing arrangement according to the invention.