Blade outer air seals

Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part – Between blade edge and static part

Reexamination Certificate

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Details

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.

REFERENCES:
patent: 5609469 (1997-03-01), Worley et al.
patent: 5797726 (1998-08-01), Lee
patent: 6379528 (2002-04-01), Lee et al.
patent: 6393331 (2002-05-01), Chetta et al.
patent: 6957949 (2005-10-01), Hyde et al.
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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