Fluid reaction surfaces (i.e. – impellers) – Articulated – resiliently mounted or self-shifting impeller... – Sectional – staged or nonrigid working member
Patent
1977-10-07
1979-10-30
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
Articulated, resiliently mounted or self-shifting impeller...
Sectional, staged or nonrigid working member
416240, 416DIG3, F04D 2938
Patent
active
041726936
ABSTRACT:
A flexible fan blade construction of the type wherein a decamber limiter is carried by each spider arm and bears against one side of its associated fan blade to thereby limit flexing (decamber) thereof. According to this invention, the decamber limiter terminates short of the heel of each fan blade. High stress concentrations due to contact between the heel edge of each fan blade and its associated decamber limiter are avoided by this novel construction.
REFERENCES:
patent: 3860362 (1975-01-01), Bentley et al.
patent: 4012168 (1977-03-01), Spellman
patent: 4037987 (1977-07-01), Charles et al.
Barton William D.
Hartley Donald J.
Matucheski Joseph V.
Spellman Michael T.
Yee Clifford S. L.
Greer, Jr. Thomas J.
Powell Jr. Everette A.
Wallace Murray Corporation
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