Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part – Between blade edge and static part
Reexamination Certificate
2006-04-11
2006-04-11
Casaregola, Louis J. (Department: 3746)
Rotary kinetic fluid motors or pumps
Bearing, seal, or liner between runner portion and static part
Between blade edge and static part
C060S796000, C277S418000
Reexamination Certificate
active
07025565
ABSTRACT:
A gas turbine engine component has an annular flange arm, a backing plate mounted to the flange arm and a bypass circuit formed between the flange arm and the backing plate. The bypass circuit includes one or more channels formed in one of the flange arm or the backing plate. When more than one channels are used, at least one connecting slot is provided between the channels. At least one inlet passage extends through the flange arm in fluid communication with the forward-most channel, and at least one outlet slot is formed between the flange arm and the backing plate in fluid communication with the aft-most channel.
REFERENCES:
patent: 2648520 (1953-08-01), Schmitt
patent: 4157232 (1979-06-01), Bobo et al.
patent: 5984630 (1999-11-01), Di Salle et al.
patent: 6050079 (2000-04-01), Durgin et al.
patent: 6471216 (2002-10-01), Brainch et al.
Abramson Harris Daniel
Czachor Robert Paul
Durgin George Albert
Housley Christopher George
Moore George E.
Adams Evans P.A.
Andes William Scott
Casaregola Louis J.
General Electric Company
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