FAN ASSEMBLY FOR AN ENGINE HAVING REDUNDANT TRUNNION RETENTION

    公开(公告)号:US20250052172A1

    公开(公告)日:2025-02-13

    申请号:US18366800

    申请日:2023-08-08

    Abstract: A fan assembly for an engine has a fan blade, a disk having a disk segment, a trunnion mechanism having a trunnion extending at least partially through the disk segment, and first and second attachment systems. The trunnion has a platform and a shaft. The fan blade is adjacent to the platform of the trunnion. The trunnion is attached to the disk segment using the first attachment system along a preload path. The first and second attachment systems further include first and second retention features, respectively, separate from the preload path. During normal operation of the fan assembly, the first attachment system retains the trunnion within the disk along a first load path. Upon a failure in the trunnion, the first and second retention features together retain the trunnion within the disk segment along a second load path, the first load path being different than the second load path.

    COMPOSITE AIRFOIL FOR A TURBINE ENGINE

    公开(公告)号:US20240376828A1

    公开(公告)日:2024-11-14

    申请号:US18314499

    申请日:2023-05-09

    Abstract: A composite airfoil with an airfoil core and a wall surrounding the airfoil core. The wall including a first set of stacked plies including a first type of ply having directional fibers extending in a first direction, and defining at least a portion of an exterior surface, the exterior surface extending between a leading edge and a trailing edge to define a chordwise direction and between a root and a tip to define a spanwise direction. At least one stiffener located between the airfoil core and the wall, the at least one stiffener having a second set of stacked plies.

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