Planetary gear transmission systems or components – With lubricaton
Reexamination Certificate
2011-02-08
2011-02-08
Ho, Ha D. (Department: 3655)
Planetary gear transmission systems or components
With lubricaton
C475S331000, C060S226100, C060S382000
Reexamination Certificate
active
07883439
ABSTRACT:
A gas turbine engine includes an epicyclic gear train that drives a turbo fan. The epicyclic gear train employs a one-piece carrier in which the spaced side walls are interconnected with circumferentially spaced apart mounts to form a unitary structure. Baffles are secured to the carrier near the mounts and provide lubrication passages that spray oil onto the sun gear and/or intermediate gears arranged between the baffles. The baffles can be constructed from a different material than the carrier since the baffles are not structural components in the gear train.
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McCune Michael E.
Sheridan William G.
Carlson Gaskey & Olds P.C.
Ho Ha D.
United Technologies Corporation
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