Rotating carrier oil manifold
AssigneeRtx Corporation
InventorsDavid Allen Stachowiak, Marc J. Muldoon
Life of this patent
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Abstract
A fan drive gear system for a turbine engine includes a carrier that supports rotation of the plurality of intermediate gears and is configured for rotation about the axis. A rotating oil inlet and rotating gutter are attached to the carrier. A transfer bearing is fixed to a static engine structure and engaged to communicate oil to the rotating oil inlet. A static baffle that is disposed radially outward of the transfer bearing and configured to direct oil that is expelled from the transfer bearing into the rotating gutter.
Claims19
A fan drive gear system for a turbine engine comprising:
- a sun gear configured to be driven by an engine shaft rotatable about an axis;
- a plurality of intermediate gears intermeshed with the sun gear;
- a ring gear assembly engaged with the plurality of intermediate gears;
- a carrier supporting rotation of the plurality of intermediate gears and including a rotating oil inlet;
- a rotating gutter attached to the carrier;
- a static baffle where expelled oil is directed into the rotating gutter;
- an auxiliary reservoir disposed radially outward of the rotating gutter;
- an oil receiving surface that is configured to receive expelled oil from the rotating gutter and communicate the oil into the auxiliary reservoir;
- and
- an output shaft coupled to the carrier.
A turbine engine assembly comprising:
- a static engine structure;
- a fan section including a fan shaft and a plurality of blades rotatable about an axis;
- a fan drive gear system configured to drive the fan shaft, the fan drive gear system including a sun gear configured to be driven by an engine shaft, a plurality of intermediate gears intermeshed with the sun gear, a ring gear assembly engaged with the plurality of intermediate gears, the ring gear configured for attachment to the static engine structure, a carrier supporting rotation of the plurality of intermediate gears, the carrier including a rotating oil inlet;
- a rotating gutter attached to the carrier;
- a transfer bearing engaged to communicate oil to the rotating oil inlet;
- a static baffle disposed radially outward of the transfer bearing and configured to capture oil expelled from the transfer bearing and direct the captured oil into the rotating gutter;
- an auxiliary reservoir disposed radially outward of the rotating gutter;
- an oil receiving surface configured to receive expelled oil from the rotating gutter and communicate the oil into the aft auxiliary reservoir;
- a primary lubricant system communicating lubricant to the fan drive gear system;
- and
- an auxiliary lubricant system configured to receive lubricant expelled from the fan drive gear system and communicated to auxiliary reservoir.
Dependencies are inferred from the claim text.