Fluid reaction surfaces (i.e. – impellers) – Articulated – resiliently mounted or self-shifting impeller... – Nonmetallic resilient mounting
Patent
1987-07-30
1989-04-04
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
Articulated, resiliently mounted or self-shifting impeller...
Nonmetallic resilient mounting
416230, 416244R, B64C 1106
Patent
active
048181790
ABSTRACT:
A helicopter rotor hub including a main retention plate that comprises triaxial braided tubular composite material having a fiber orientation that withstands forces both in the plane and normal to the plane of the retention plate. The retension plate comprises a plurality of fiber reinforced resin braided tubular rings that are spaced about in a plane normal to a central axis. The rings form a circumferential ring structure having arm means extending inwardly. A flattened braided tubular ring strap surrounds the circumferential ring structure. Fiber reinforced plates are disposed above and below the ring structure providing additional in-plane strength. The braided tubular rings and braided tubular ring strap comprises substantially circumferential fibers interwoven with angled fibers oriented at a predetermined angle to the circumferential fibers.
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Doolin Leonard J.
Toner Thomas J.
Powell Jr. Everette A.
United Technologies Corporation
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