Invention Grant
- Patent Title: Composite aerofoil structure with a cutting edge tip portion
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Application No.: US14654390Application Date: 2013-12-19
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Publication No.: US10669866B2Publication Date: 2020-06-02
- Inventor: Nicholas Michael Merriman
- Applicant: ROLLS-ROYCE PLC
- Applicant Address: GB London
- Assignee: ROLLS-ROYCE PLC
- Current Assignee: ROLLS-ROYCE PLC
- Current Assignee Address: GB London
- Agency: Banner & Witcoff, Ltd.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@59b7c638
- International Application: PCT/GB2013/053369 WO 20131219
- International Announcement: WO2014/096838 WO 20140626
- Main IPC: F01D5/28
- IPC: F01D5/28 ; F01D5/14 ; F01D5/20

Abstract:
An aerofoil structure (26) for a gas turbine engine (10), the aerofoil structure comprising a carbon composite aerofoil portion (38) and a tip portion (48), wherein the tip portion comprises a tip surface (60) configured to face a corresponding casing structure (30), the tip portion further comprising a ridge line (62) extending along at least a portion of the tip surface, wherein the tip surface comprises a first surface (64) and a second surface (66) provided either side of the ridge line, the ridge line being defined by the intersection of the first and second surfaces, wherein the ridge line is configured to cut into the casing structure during an interaction between the aerofoil structure and casing structure.
Public/Granted literature
- US20150337670A1 COMPOSITE AEROFOIL STRUCTURE WITH A CUTTING EDGE TIP PORTION Public/Granted day:2015-11-26
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