High power epicyclic gearbox and operation thereof

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12221929
APP PUB NO 20240191660A1
SERIAL NO

18237580

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A gas turbine engine for an aircraft includes an engine core with a turbine, a compressor, and a core shaft connecting the turbine and compressor; a fan upstream of the engine core including a plurality of fan blades; and a gearbox that receives an input from a gearbox input shaft portion of the core shaft and outputs drive to a fan shaft so as to drive the fan at a lower rotational speed than the core shaft, the gearbox being an epicyclic gearbox including a sun gear, a plurality of planet gears, a ring gear, and a planet carrier arranged to have the plurality of planet gears mounted thereon, and wherein the sun gear receives input from the core shaft. At cruise conditions the product of the torque on the core shaft and radial bending stiffness or tilt stiffness of the gearbox input shaft portion is within a specified range.

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First Claim

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Patent Owner(s)

  • ROLLS ROYCE PLC

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Spruce, Mark Derby, GB 63 144

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