- Patent Title: Airfoil tip geometry to reduce blade wear in gas turbine engines
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Application No.: US15063089Application Date: 2016-03-07
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Publication No.: US10385865B2Publication Date: 2019-08-20
- Inventor: Sathyanarayanan Raghavan , Neelesh Nandkumar Sarawate , Kenneth Martin Lewis , Changjie Sun , Ananda Barua
- Applicant: General Electric Company
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: Armstrong Teasdale LLP
- Main IPC: F04D29/16
- IPC: F04D29/16 ; F04D29/32

Abstract:
An airfoil for use in a turbomachine includes a pressure sidewall and a suction sidewall coupled to the pressure sidewall. The suction sidewall and the pressure sidewall define a leading edge and an opposite trailing edge. The leading edge and the trailing edge define a chord distance. The airfoil further includes a root portion, and a tip portion. The tip portion extends between the pressure sidewall and the suction sidewall such that the tip portion is substantially perpendicular to each sidewall. The tip portion includes at least one planar section and at least one oblique section that forms a recess within the tip portion. The at least one oblique section extends from the at least one planar section towards the root portion along the chord distance. The tip portion is configured to reduce airfoil wear during contact with a surrounding casing.
Public/Granted literature
- US20170254340A1 AIRFOIL TIP GEOMETRY TO REDUCE BLADE WEAR IN GAS TURBINE ENGINES Public/Granted day:2017-09-07
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