Invention Grant
- Patent Title: Flap support mechanism—C bar
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Application No.: US16172750Application Date: 2018-10-27
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Publication No.: US11034432B2Publication Date: 2021-06-15
- Inventor: Kevin R. Tsai , Bruce A. Dahl , Gregory M. Santini , Kyle A. Johnson , Seiya Sakurai , Stephen R. Amorosi
- Applicant: The Boeing Company
- Applicant Address: US IL Chicago
- Assignee: The Boeing Company
- Current Assignee: The Boeing Company
- Current Assignee Address: US IL Chicago
- Agent Felix L. Fischer
- Main IPC: B64C3/38
- IPC: B64C3/38 ; B64C5/10 ; F16H21/44 ; F16H51/00 ; B64C5/08 ; F16H25/22

Abstract:
A trailing edge flap actuation mechanism has a flap drive link with a first end pivotally coupled to a fore flap structure of a flap and a second end pivotally coupled to an underwing support structure. An aft tension link has a leading end pivotally coupled proximate an aft end of the underwing support structure and a trailing end coupled to a mid-section structure of the flap. An actuator, when actuated, rotates the flap drive link about a first pivot axle to move the flap between a retracted position and a deployed lowered position. The actuator, including a ball-screw drive shaft having a universal joint, is positioned in a cove above the underwing support structure whereby the extent that the underwing support structure protrudes below the wing is reduced.
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