Fan blade containment assembly

Details Fan blade containment assembly Fan blade containment assembly

1994-04-29

1996-01-09

Look, Edward K.

Rotary kinetic fluid motors or pumps

Including destructible, fusible, or deformable non-reusable...

415119, F01D 2100

Patent

active

054824290

ABSTRACT:
A fan blade containment assembly includes a flow surface forward of the fan blades that is defined by the inner surface of the case. Various construction details are developed that provide an axially and circumferentially continuous flow surface forward of the fan blades. The continuity and uniformity eliminates structural discontinuities that increase noise levels associated with the engine. In a particular embodiment, the case is formed from an isogrid structure, a plurality of cloth wraps wound under tension around the case, and a plurality of acoustic panels downstream of the fan blades. The flow surface forward of the fan blades is provided by machining the inner surface of the case to the desired shape.

REFERENCES:
patent: 4425080 (1984-01-01), Stanton et al.
patent: 4534698 (1985-08-01), Tomich
patent: 4801070 (1989-01-01), Hom et al.
patent: 5160248 (1992-11-01), Clarke
patent: 5259724 (1993-11-01), Liston et al.

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