Long life nozzle flap for aircraft turbojets

Details Long life nozzle flap for aircraft turbojets Long life nozzle flap for aircraft turbojets

2005-11-15

2005-11-15

Gartenberg, Ehud (Department: 3746)

Power plants

Reaction motor

Particular exhaust nozzle feature

C264S081000, C264S136000

Reexamination Certificate

active

06964169

ABSTRACT:
The invention proposes a long life nozzle flap for aircraft turbojets. This flap is remarkable in that it is composed of a hollow tapered body (10) flattened in the transverse direction along straight geometric generating lines (11), the body (10) forming a thin wall (12) with an approximately constant thickness E, this wall (12) comprising a continuous inner surface with a radius of curvature equal to at least 2×E, the wall (12) being made of a refractory composite material composed of reinforcing fibers (18) embedded in a matrix also made from a refractory material, the reinforcing fibers (18) being arranged in a plurality of continuous layers of fibers (18) stacked on each other, the fibers (18a) of a layer crossing the fibers (18b) of any adjacent layer.

REFERENCES:
patent: 4196856 (1980-04-01), James
patent: 4637550 (1987-01-01), Nash
patent: 5000386 (1991-03-01), Lybarger
patent: 5034172 (1991-07-01), Vives et al.
patent: 5174368 (1992-12-01), Boury et al.
patent: 5553455 (1996-09-01), Craig et al.

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