Fluid reaction surfaces (i.e. – impellers) – Articulated – resiliently mounted or self-shifting impeller... – Resilient bias or mount
Patent
1976-02-03
1977-08-30
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
Articulated, resiliently mounted or self-shifting impeller...
Resilient bias or mount
416190, 416193A, 416241A, F01D 530
Patent
active
040451496
ABSTRACT:
A rotor apparatus comprising a blade having a root adapted to swing laterally within a supporting spindle under impact loading is provided with a flow path defining platform. The platform comprises an inner shroud extending generally laterally of the blade airfoil portion and adapted to swing laterally therewith. In one embodiment wherein the blade primarily comprises a laminate of composite filament plies, the inner shroud is bonded to the laminate. An outer shroud, fixed with respect to the supporting spindle, forms a lateral extension of the inner shroud with the blade in its normal operating position. The inner and outer shrouds are provided with a pair of complementary adjacent surfaces contoured to pass in relatively close-fitting relationship to each other when the blade swings under impact loadings.
REFERENCES:
patent: 2877980 (1959-03-01), Stalker
patent: 2936155 (1960-05-01), Howell et al.
patent: 2967043 (1961-01-01), Dennis
patent: 3487879 (1970-01-01), McCarthy et al.
patent: 3656864 (1972-04-01), Wagle
patent: 3801222 (1974-04-01), Violette
patent: 3860361 (1975-01-01), McMurtry et al.
patent: 3905722 (1975-09-01), Guy et al.
Lampe, Jr. Robert C.
Lawrence Derek P.
Musial Norman T.
Powell Jr. Everette A.
The United States of America as represented by the Administrator
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