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:
Dec. 06, 2022
Filed:
Jun. 05, 2020
Applicants:
Rolls-royce North American Technologies Inc., Indianapolis, IN (US);
Rolls-royce Corporation, Indianapolis, IN (US);
Inventors:
Brett Hartnagel, Brownsburg, IN (US);
Brandon Snyder, Greenwood, IN (US);
Michael Whitten, Zionsville, IN (US);
Assignees:
Rolls-Royce North American Technologies Inc., Indianapolis, IN (US);
Rolls-Royce Corporation, Indianapolis, IN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/06 (2006.01); F01D 5/02 (2006.01);
U.S. Cl.
CPC ...
F01D 5/066 (2013.01); F01D 5/026 (2013.01); F05D 2240/61 (2013.01); F05D 2260/38 (2013.01);
Abstract
A rotor assembly includes a plurality of wheels and a tie bolt that extends through the plurality of wheels and applies a compressive force to the plurality of wheels. The tie bolt includes a first segment with a first stiffness and a second segment with a second stiffness to allow for thermal growth of the plurality of wheels.