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US 2014/0154054 A1Published application
Oil baffle for gas turbine fan drive gear system
AssigneeUnited Technologies Corporation
InventorsWilliam G. Sheridan, Michael E. McCune
Life of this patent
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Abstract
A turbine engine comprises compressor and turbine sections. An epicyclic gear train includes a carrier, a sun gear and intermediate gears arranged about and intermeshing with the sun gear. The intermediate gears are supported by the carrier. A baffle includes a lubrication passage near at least one of the sun gear and intermediate gears for directing a lubricant on at least one of the sun gear and intermediate gears. A method of designing a turbine engine is also disclosed.
Claims30
A turbine engine comprising:
- compressor and turbine sections;
- and
- an epicyclic gear train including:
- a carrier;
- a sun gear and intermediate gears arranged about and intermeshing with the sun gear, the intermediate gears supported by the carrier;
- and
- a baffle including a lubrication passage near at least one of the sun gear and intermediate gears for directing a lubricant on the at least one of the sun gear and intermediate gears.
4 more elements
A turbine engine comprising:
- compressor and turbine sections;
- and
- an epicyclic gear train including:
- a carrier;
- a sun gear and intermediate gears arranged about and intermeshing with the sun gear, the intermediate gears supported by the carrier;
- a baffle, the baffle including a lubrication passage near at least one of the sun gear and intermediate gears for directing a lubricant on the at least one of the sun gear and intermediate gears;
- and
- a spray bar external to the carrier and in communication with the lubrication passage, the spray bar terminating near the sun gear for directing lubricant on the sun gear.
5 more elements
A method of designing a turbine engine comprising:
- providing an epicyclic gear train including:
- a carrier;
- a sun gear and intermediate gears arranged about and intermeshing with the sun gear, the intermediate gears supported by the carrier;
- and
- a baffle including a lubrication passage near at least one of the sun gear and intermediate gears for directing a lubricant on the at least one of the sun gear and intermediate gears;
- and
- providing a compressor section and a turbine sections, the turbine section to drive the compressor section and the epicyclic gear train,
- wherein there are three turbine rotors in the turbine section, with a fan drive turbine driving a fan through the input shaft, and two other turbine rotors driving compressor rotors.
5 more elements
Dependencies are inferred from the claim text.