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:
Jan. 14, 2020
Filed:
Jun. 02, 2017
Applicant:
Rolls-royce Corporation, Indianapolis, IN (US);
Inventors:
James E. Sellhorn, Indianapolis, IN (US);
Michael Whitten, Zionsville, IN (US);
Assignee:
ROLLS-ROYCE CORPORATION, Indianapolis, IN (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J 15/44 (2006.01); F01D 11/00 (2006.01); F16J 15/447 (2006.01); F01D 11/02 (2006.01);
U.S. Cl.
CPC ...
F01D 11/001 (2013.01); F01D 11/025 (2013.01); F16J 15/4472 (2013.01); F05D 2230/642 (2013.01); F05D 2260/36 (2013.01);
Abstract
A labyrinth seal system comprises a knife element and a stator element, the knife element having a plurality of teeth radially extending from a base and the stator element having a radially inner surface configured to interact with the plurality of teeth to create a seal. The knife element is axially constrained by and rotationally coupled to a turbine component, but has a degree of freedom in the radial direction with respect to that component.