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:
May. 19, 2026
Filed:
Nov. 18, 2024
Rolls-royce North American Technologies Inc., Indianapolis, IN (US);
Robert W. Heeter, Indianapolis, IN (US);
Daniel E. Molnar, Jr., Indianapolis, IN (US);
Rolls-Royce North American Technologies Inc., Indianapolis, IN (US);
Abstract
A fan case assembly includes an annular case and a fan track liner. The fan track liner includes a variable wall assembly having a stationary portion defining a circumferentially extending groove therein and a movable segment arranged in the groove. The movable segment can be selectively radially translatable within the groove. Radially inwardly facing surfaces of the movable segment and the stationary portion define a portion of a flow path across the fan track liner, and the movable segment can be radially translated within the groove to alter the portion of the flow path across the fan track liner in order to control stall margin of the engine and optimize performance of the engine.