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. 08, 2021
Filed:
Oct. 02, 2018
Applicant:
Rolls-royce North American Technologies Inc., Indianapolis, IN (US);
Inventor:
Douglas David Dierksmeier, Franklin, IN (US);
Assignee:
Rolls-Royce North American Technologies, Inc., Indianapolis, IN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 11/02 (2006.01); F01D 9/04 (2006.01);
U.S. Cl.
CPC ...
F01D 11/025 (2013.01); F01D 9/04 (2013.01); F05D 2220/321 (2013.01); F05D 2220/323 (2013.01); F05D 2240/10 (2013.01); F05D 2240/55 (2013.01);
Abstract
An air seal for a jet turbine engine with an upper stator, lower stator and finned turbine disk. The thermal expansion of the stators may be regulated by a control ring, which has a lower rate of thermal expansion that the stators, to prevent rubbing between the stator and fins.