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:
Feb. 01, 2022
Filed:
Nov. 19, 2018
Applicants:
Rolls-royce Corporation, Indianapolis, IN (US);
Rolls-royce North American Technologies Inc., Indianapolis, IN (US);
Inventors:
Richard Joseph Skertic, Carmel, IN (US);
Joshua J. Gear, Plainfield, IN (US);
John Joseph Costello, Indianapolis, IN (US);
Geoffrey L. Gatton, Brownsburg, IN (US);
Assignees:
ROLLS-ROYCE NORTH AMERICAN TECHNOLOGIES INC., Indianapolis, IN (US);
ROLLS-ROYCE CORPORATION, Indianapolis, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 11/20 (2006.01); F01D 11/12 (2006.01); F01D 11/22 (2006.01);
U.S. Cl.
CPC ...
F01D 11/20 (2013.01); F01D 11/122 (2013.01); F01D 11/22 (2013.01);
Abstract
Systems and methods are provided that use a tip clearance control apparatus comprising a mechanical iris, where the tip clearance control apparatus controls a distance between a tip of a blade and a ring of abradable material positioned in an adjustable opening of the mechanical iris.