Hybrid fan blade and method for its manufacture

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8777577
APP PUB NO 20080152858A1
SERIAL NO

12003246

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Abstract

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With a hybrid fan blade, the supporting structure (1) in fiber-composite material is enclosed by an enveloping structure (2) only in an area of the airfoil, with a suction-side sheet-metal cover of the enveloping structure being pre-stressed in tension and a pressure-side sheet-metal cover of the enveloping structure being pre-stressed in compression. This reduces the hazard of delamination between the enveloping structure and the supporting structure.

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Patent Owner(s)

  • ROLLS-ROYCE DEUTSCHLAND LTD & CO KG

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Schreiber, Karl Am Mellensee, DE 53 496

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