Blade outer air seals

Details Blade outer air seals Blade outer air seals

2006-10-12

2009-06-30

Nguyen, Ninh H (Department: 3745)

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

Between blade edge and static part

C415S116000, C415S139000, C415S213100

Reexamination Certificate

active

07553128

ABSTRACT:
A blade outer air seal (BOAS) has a body having an inner (ID) face and an outer (OD) face, first and second circumferential ends, and fore and aft longitudinal ends. The BOAS has one or more mounting hooks extending from the body. The OD face comprises a plurality of transversely elongate protuberances. The protuberances include rearwardly divergent first protuberances and forwardly divergent second protuberances.

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patent: 7033138 (2006-04-01), Tomita et al.
patent: 7306424 (2007-12-01), Romanov et al.
patent: 7335429 (2008-02-01), Lee et al.

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