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:
Oct. 25, 2024
Rolls-royce Plc, London, GB;
Rolls-Royce PLC, London, GB;
Abstract
An aerofoil structure for a gas turbine engine includes an aerofoil portion and a tip portion. The tip portion includes a tip surface configured to face a corresponding seal segment of the gas turbine engine and a plurality of cutting features provided on at least a portion of the tip surface. The cutting features are discrete and spaced apart from each other. The tip surface defines a longitudinal axis along a length of the tip surface and a transverse axis perpendicular to the longitudinal axis. Each cutting feature extends from the tip surface and is configured to cut into the seal segment in a cutting direction parallel to the longitudinal axis upon rotation of the aerofoil structure relative to the seal segment. A minimum longitudinal distance between a pair of adjacent cutting features from the plurality of cutting features along the longitudinal axis is at least 100 microns.