Rotary kinetic fluid motors or pumps – Including destructible – fusible – or deformable non-reusable...
Patent
1998-04-20
2000-05-09
Look, Edward K.
Rotary kinetic fluid motors or pumps
Including destructible, fusible, or deformable non-reusable...
415200, F01D 2516
Patent
active
060595248
ABSTRACT:
The invention is a penetration resistant turbine engine fan casing (12) for containing separated fragments of a fan blade (16). The casing includes a penetration susceptible support case (14), a penetrable covering (32) circumscribing an impact zone (I) of the support case and an optional, but highly recommended collapsible support covering (34) circumscribing the case but axially offset from the impact zone. A containment covering (36) circumscribes both the penetrable covering (32) and the support covering (34). In a preferred embodiment, the coverings are aromatic polyamide fiber fabrics and the support covering is a collapsible cellular array. In operation, a detached fragment of a fan blade penetrates through the case (14) and the penetrable covering (32), and is plastically deformed by the penetrable covering to reduce the fragment's potential for damaging the containment covering (36). The containment covering intercepts the deformed fragment, confining it to a predetermined radial envelope bounded by the inner surface (58) of a nacelle (52). The impact forces arising from a separated blade fragment cause the containment fabric to collapse the cellular array (32) and momentarily detension the containment fabric to maximize its penetration resistance.
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Costa Mark W.
Foose Andrew S.
Korn Nathan D.
Kowza Jan B.
Lopardi Wendy P.
Baran Kenneth C.
Barton Rhonda
Look Edward K.
United Technologies Corporation
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