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:
Jul. 20, 2021
Filed:
Jul. 07, 2017
Applicant:
Siemens Aktiengesellschaft, Munich, DE;
Inventors:
Assignee:
Siemens Energy Global GmbH & Co. KG, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/06 (2006.01); B23K 9/02 (2006.01); B23K 9/028 (2006.01); B23K 9/167 (2006.01); B23K 9/173 (2006.01); B23K 9/23 (2006.01); F01D 5/02 (2006.01); B23K 101/00 (2006.01);
U.S. Cl.
CPC ...
F01D 5/063 (2013.01); B23K 9/028 (2013.01); B23K 9/0213 (2013.01); B23K 9/167 (2013.01); B23K 9/173 (2013.01); B23K 9/23 (2013.01); F01D 5/025 (2013.01); B23K 2101/001 (2018.08); F05D 2220/31 (2013.01); F05D 2230/233 (2013.01); F05D 2230/235 (2013.01); F05D 2260/95 (2013.01);
Abstract
A rotor shaft for a turbine rotor of a turbine, in particular a steam turbine, having a shaft main body made of a first material and at least one ring which is made of a second material and is attached to the shaft main body, wherein the second material has equal or greater strength and/or greater corrosion resistance than the first material, wherein at least one blade slot is formed on the ring, and wherein the ring is materially bonded to the shaft main body by narrow-gap welding.