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:
Jun. 11, 2013
Filed:
Aug. 08, 2008
Douglas J. Arrell, Oviedo, FL (US);
Harald Hoell, Wächtersbach, DE;
David W. Hunt, Orlando, FL (US);
Karsten Kolk, Mülheim a.d. Ruhr, DE;
Harald Nimptsch, Essen, DE;
Douglas J. Arrell, Oviedo, FL (US);
Harald Hoell, Wächtersbach, DE;
David W. Hunt, Orlando, FL (US);
Karsten Kolk, Mülheim a.d. Ruhr, DE;
Harald Nimptsch, Essen, DE;
Siemens Aktiengesellschaft, München, DE;
Abstract
A rotor for an axial flow turbomachine is provided. The rotor includes a plurality of rotor discs that are arranged in stacks and clamped together with at least one tie rod. At least one of the rotor discs of the rotor comprises a smaller outer diameter than one of the neighboring rotor discs and that the difference in diameter is compensated by a drum surrounding the rotor disc with the smaller outer diameter as a ring. The drum may be made of a heat resistant material. The rotor discs surrounded by the drum may be made of a less expensive material. Furthermore, the drum may include at least one more blade ring than the rotor discs that are surrounded by the drum.