Invention Grant
- Patent Title: Segmented variable fan outlet guide vane with gear assembly
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Application No.: US18600610Application Date: 2024-03-08
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Publication No.: US12292056B2Publication Date: 2025-05-06
- Inventor: Robert W. Heeter , Daniel E. Molnar, Jr. , Gregory J. Hebert
- Applicant: Rolls-Royce North American Technologies Inc.
- Applicant Address: US IN Indianapolis
- Assignee: Rolls-Royce North American Technologies Inc.
- Current Assignee: Rolls-Royce North American Technologies Inc.
- Current Assignee Address: US IN Indianapolis
- Agency: Barnes & Thornburg
- Main IPC: F04D29/54
- IPC: F04D29/54 ; F01D17/16 ; F04D19/00

Abstract:
A fan assembly for a gas turbine engine includes a fan duct, a fan, and an outlet guide vane assembly located in the fan duct axially downstream of the fan. The outlet guide vane assembly includes a first variable leading edge outlet guide vane that extends radially relative to the central axis and includes a leading edge portion and a fixed aft portion, the leading edge portion including a tip segment configured to rotate about a leading edge pitch axis and a hub segment located radially inward of and separate from the tip segment, the hub segment configured to independently rotate about the leading edge pitch axis relative to the tip segment. The assembly further includes two unique gear assemblies each configured to rotate one of the tip and hub segments.
Public/Granted literature
- US20240309886A1 SEGMENTED VARIABLE FAN OUTLET GUIDE VANE WITH GEAR ASSEMBLY Public/Granted day:2024-09-19
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