Turbomachine blade

Details Turbomachine blade Turbomachine blade

2007-12-25

2007-12-25

Verdier, Christopher (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Laminated, embedded member or encased material

C416S24100B, C416S500000

Reexamination Certificate

active

10609640

ABSTRACT:
A turbomachine blade comprising a root portion and an aerofoil portion, the aerofoil portion having a leading edge, a trailing edge, a concave metal wall portion extending from the leading edge to the trailing edge and a convex metal wall portion extending from the leading edge to the trailing edge. The concave metal wall portion and the convex metal wall portion form a continuous integral metal wall. The aerofoil portion has a hollow interior defined by at least one internal surface and the hollow interior of the aerofoil portion is at least partially filled with a vibration damping and stiffening system that comprises a vibration damping material. The vibration damping material is bonded to the at least one internal surface and the vibration damping and stiffening system comprises a variation of material properties between the wall portions.

REFERENCES:
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patent: 6669447 (2003-12-01), Norris et al.
patent: 0 926 312 (1999-06-01), None
patent: 713 160 SP (1954-08-01), None
patent: 893 787 SP (1962-04-01), None
patent: 2 026 622 (1980-02-01), None
patent: 2 371 095 (2002-07-01), None

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