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. 07, 2025
Filed:
Apr. 15, 2022
Siemens Energy Global Gmbh & Co. KG;
Kevin Miny, Essen, DE;
SIEMENS ENERGY GLOBAL GMBH & CO. KG, Munich, DE;
Abstract
Turbomachine and method for assembling/disassembling a rotor structure of the turbomachine are disclosed. A plurality of impeller bodies is supported on a tie bolt. Threadingly connecting a first coupling nut with the tie bolt to axially press the impeller bodies to define a compression section. The first coupling nut is arranged to apply a first coupling force within the compression section to hold the compression section attached during rotating operation of the turbomachine. Threadingly connecting a second coupling nut with the tie bolt to axially press a rotor shaft portion onto the compression section. The second coupling nut is arranged to apply a second coupling force to the rotor shaft portion to hold the rotor shaft portion affixed onto the compression section during a non-rotating condition of the turbomachine. The foregoing multi-nut coupling arrangement in a cost-effective and reliable manner provides user-friendly flexibility for assembly/disassembly of the rotor structure while maintaining a mechanically robust rotor structure.