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US 2019/0316523 A1Published application
Torque connector lubrication scuppers
AssigneeUnited Technologies Corporation
InventorMarc J. Muldoon
Life of this patent
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Abstract
A turbofan engine includes a fan rotatable about an axis, a compressor section, a combustor in fluid communication with the compressor section, a turbine section in fluid communication with the combustor, a fan drive gear system including a carrier for supporting a plurality of gears, and a scupper capturing lubricant during gear operation and directing lubricant into the carrier. A fan drive gear system is also disclosed.
Claims18
A turbofan engine comprising:
- a fan rotatable about an axis for moving air through a bypass flow passage;
- a compressor section;
- a combustor in fluid communication with the compressor section;
- a turbine section in fluid communication with the combustor, the turbine section including a fan drive turbine and a second turbine;
- a fan drive gear system including a carrier for supporting a plurality of gears, the fan drive turbine coupled to the fan drive gear system;
- a plurality of fasteners securing the carrier to another rotating structure;
- and
- a scoop capturing lubricant during operation of the fan drive gear system and directing a portion of the captured lubricant into a space within the carrier for at least one of the plurality of fasteners.
5 more elements
A fan drive gear system comprising:
- a sun gear;
- a plurality of intermediate gears supported by a carrier and engaged to the sun gear;
- a ring gear circumscribing the plurality intermediate gears, wherein the ring gear is fixed relative to rotation of the carrier about an axis of rotation;
- a plurality of connectors securing the carrier to another structure;
- and
- a scupper for capturing lubricant during gear operation and directing lubricant into a space defined within the carrier for at least one of the plurality of connectors.
3 more elements
Dependencies are inferred from the claim text.