Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Laminated – embedded member or encased material
Reexamination Certificate
2006-11-28
2009-10-13
Edgar, Richard (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Laminated, embedded member or encased material
C416S22900R
Reexamination Certificate
active
07600979
ABSTRACT:
A ceramic matrix composite (CMC) component for gas turbine engines, the component having fine features such as thin edges with thicknesses of less than about 0.030 inches and small radii of less that about 0.030 inches formed using the combination of prepreg plies layed up with non-ply ceramic inserts. The CMC components of the present invention replace small ply inserts cut to size to fit into areas of contour change or thickness change, and replace the small ply inserts with a fabricated single piece discontinuously reinforced composite insert, resulting in fewer defects, such as wrinkles, and better dimensional control.
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Schreiber Tanslation, Inc., JP 02196103 A: Ceramic Turbine Parts, Mar. 2009, pp. 1-12.
Carper Douglas Melton
Steibel James Dale
Subramanian Suresh
Whiteker Stephen Mark
Edgar Richard
General Electric Company
McNees Wallace & Nurick LLC
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