High stiffness hub assembly for proprotor systems

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10232932
APP PUB NO 20180273160A1
SERIAL NO

15466825

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Importance

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Abstract

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A high stiffness hub assembly for a proprotor system operable to rotate with a mast of a tiltrotor aircraft having helicopter and airplane flight modes. The hub assembly includes a yoke and a constant velocity joint assembly. The yoke has four blade arms each adapted to hold a proprotor blade. The constant velocity joint assembly provides a torque path from the mast to the yoke that includes a trunnion assembly, four drive links and four pillow blocks. The trunnion assembly is coupled to the mast and has four outwardly extending trunnions. Each drive link has a leading bearing coupled to one of the trunnions and a trailing bearing coupled to one of the pillow blocks. Each pillow block is independently mounted between an upper surface of the yoke and a hub plate with two connection members that extend through the yoke and the pillow block.

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Patent Owner(s)

Patent OwnerAddress
BELL HELICOPTER TEXTRON INCP O BOX 482 FORT WORTH TX 76101

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Baldwin, Tyler Wayne Fort Worth, US 30 94
Choi, Jouyoung Jason Fort Worth, US 35 129
Rauber, Richard Erler Fort Worth, US 8 39
Stamps, Frank Bradley Fort Worth, US 87 534

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