Hollow component with internal damping

Details Hollow component with internal damping Hollow component with internal damping

2005-12-27

2005-12-27

Look, Edward K. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Laminated, embedded member or encased material

C416S232000, C416S233000, C416S24100B, C416S500000

Reexamination Certificate

active

06979180

ABSTRACT:
A component, for example a fan blade for a gas turbine engine, comprises panels2and4which define between them a cavity containing a warren girder structure6. Internal surfaces of the panels2and4are provided with a damping material14, disposed between regions of contact12between the warren girder6and the panels2, 4. The damping material damps vibrations of the component, so extending its fatigue life.

REFERENCES:
patent: 3758233 (1973-09-01), Cross et al.
patent: 6039542 (2000-03-01), Schilling et al.
patent: 6669447 (2003-12-01), Norris et al.
patent: 2002/0122718 (2002-09-01), Motherwell et al.
patent: 2003/0217791 (2003-11-01), Bamberg et al.
patent: 1 247 941 (2002-10-01), None
patent: 2 390 402 (2004-01-01), None
patent: 2 395 204 (2004-05-01), None
patent: WO 99/23278 (1999-05-01), None

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