Invention Grant
- Patent Title: Geared architecture to protect critical hardware during fan blade out
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Application No.: US14773924Application Date: 2013-12-03
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Publication No.: US10107134B2Publication Date: 2018-10-23
- Inventor: Jason Husband , Drew W. Lancaster
- 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: Carlson, Gaskey & Olds, P.C.
- International Application: PCT/US2013/072719 WO 20131203
- International Announcement: WO2014/163675 WO 20141009
- Main IPC: F01D21/00
- IPC: F01D21/00 ; F01D21/04 ; F01D5/02 ; F01D15/12

Abstract:
A turbofan engine including a fan section including a plurality of fan blades rotatable about an axis, a compressor including a plurality of compressor blades, a turbine including a plurality of turbine blades and a geared architecture driven by the turbine for driving the fan section at a speed and direction different than the turbine is disclosed. A rub strip proximate at least one of the compressor blades, the turbine blades and the fan blades slows rotation when engaged. The rub strip generates a torque opposing rotation when in an engaged condition that is between 2 and 6 times a torque encountered in a non-engaged condition.
Public/Granted literature
- US20160017746A1 GEARED ARCHITECTURE TO PROTECT CRITICAL HARDWARE DURING FAN BLADE OUT Public/Granted day:2016-01-21
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