Fluid reaction surfaces (i.e. – impellers) – Articulated – resiliently mounted or self-shifting impeller... – Nonmetallic resilient mounting
Patent
1983-03-22
1986-02-04
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
Articulated, resiliently mounted or self-shifting impeller...
Nonmetallic resilient mounting
416230, 416141, B64C 2738
Patent
active
045682461
ABSTRACT:
A composite torque tube for a helicopter rotor hub is described. The torque tube contains upper and lower load bearing surfaces connected by two sidewall portions. Both the sidewall and load bearing portions contain filament wound glass fiber reinforced epoxy resin such fibers having a .+-.45.degree. orientation. The upper and lower load bearing portions additionally contain a plurality of multiaxially oriented plies of continuous unidirectionally oriented graphite fibers interleaved with the glass fibers so as to produce a torque tube with crack resistance, damage tolerance, light weight, strength and integrity inspectability.
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patent: 4273511 (1981-06-01), Mouille et al.
patent: 4345876 (1982-08-01), Schwarz et al.
patent: 4381902 (1983-05-01), Head et al.
patent: 4427340 (1984-01-01), Metzger et al.
patent: 4432696 (1984-02-01), Stephan et al.
Byrnes, Jr. Francis E.
Hibyan Edward S.
Ogle Peter C.
Toner Thomas J.
Wehnert George J.
Cohen Alan C.
Powell Jr. Everette A.
United Technologies Corporation
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