Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Having wear liner – sheathing or insert
Patent
1996-11-22
1998-03-10
Kwon, John T.
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Having wear liner, sheathing or insert
F04D 2938
Patent
active
057253544
ABSTRACT:
A gas turbine engine fan blade includes a main body having a radially spaced apart root and tip, and axially spaced apart leading and trailing edges. A front shell is fixedly joined to a portion of the body leading edge to collectively define with the body an airfoil having first and second opposite sides extending between the root, tip, shell, and trailing edge for pressurizing air flowing thereover. The shell is hollow to offset toward the trailing edge a collective center of gravity of the airfoil to reduce steady stress at the airfoil leading edge.
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patent: 4944655 (1990-07-01), Merz
patent: 5167489 (1992-12-01), Wadia et al.
patent: 5480284 (1996-01-01), Wadia et al.
Crall David W.
Koch Carl C.
Prentice Ian F.
Wadia Aspi R.
General Electric Company
Hess Andrew C.
Kwon John T.
Scanlon Patrick R.
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