Invention Grant
- Patent Title: Fan blades with abrasive tips
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Application No.: US14509780Application Date: 2014-10-08
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Publication No.: US10408224B2Publication Date: 2019-09-10
- Inventor: Christopher W. Strock , Changsheng Guo
- Applicant: UNITED TECHNOLOGIES CORPORATION
- Applicant Address: US CT Farmington
- Assignee: UNITED TECHNOLOGIES CORPORATION
- Current Assignee: UNITED TECHNOLOGIES CORPORATION
- Current Assignee Address: US CT Farmington
- Agency: Cantor Colburn LLP
- Main IPC: F01D5/28
- IPC: F01D5/28 ; F04D29/38 ; F04D19/00 ; F01D11/12

Abstract:
A fan blade for a gas turbine engine is disclosed. The disclosed fan blade includes an airfoil having a leading edge, a trailing edge, a convex side, a concave side and a distal tip. The leading edge, trailing edge, convex side and concave side of the airfoil is at least partially coated with an erosion resistant coating. The distal tip of the airfoil is coated with a bonded abrasive coating. The bonded abrasive coating engages the abradable coating disposed on the fan liner and, because of its low thermal conductivity, reduces heat transfer to the distal tip of the fan blade. The reduction in heat transfer to the distal tip of the fan blade preserves the integrity of erosion resistant coatings that may be applied to the body or the airfoil of the fan blade.
Public/Granted literature
- US20150204347A1 Fan Blades With Abrasive Tips Public/Granted day:2015-07-23
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