System and method for shimming a bevel gear in an IGB on a gas turbine without removal of the bevel gear

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11274605
APP PUB NO 20210062722A1
SERIAL NO

16557048

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method for shimming a thrust bearing for an accessory power take off shaft to obtain optimal meshing of bevel gears within the internal gearbox (IGB) without disassembly of the IGB is enabled by relocating the thrust bearing from the engine sump. The accessory gearbox (AGB) is driven from a power off-take from the turbine spool via the IGB. The radial position of the power take-off bevel gear is established by a radial position of the thrust bearing attached to the exterior of the casing via a housing. Candidate shims are selected from a set each having different thicknesses, the shims are formed of two halves and placed between the housing and the engine casing to adjust the radial position of the thrust bearing and consequently the power take-off bevel gear, without requiring the disassembly of the IGB.

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Patent Owner(s)

  • ROLLS ROYCE CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Camara, Caleb Indianapolis, US 6 7
Feinstein, Daniel Zionsville, US 9 9
Sheridan, Timothy David Zionsville, US 2 0
Swift, Joseph Indianapolis, US 10 19

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