Geared turbofan engine and sun shaft for driving sun gear of planetary gearbox

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 10508714
SERIAL NO

15726126

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Abstract

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A geared turbofan engine with a sun shaft driving a sun gear of planetary gearbox. The sun shaft having a front section proximal to the gearbox and a rear section distal from the gearbox. The outer diameter of the front section of the sun shaft is smaller than the outer diameter of the rear section of the sun shaft. The front section of the sun shaft having between two and four undulant sections, wherein each undulant section having at least one axial part extending in axial direction of the sun shaft and two diaphragm parts on either side of the at least one axial part extending in radial direction outward, the at least one axial part of the undulant section having an inner diameter smaller than the outer diameter of the front section of the sun shaft.

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Patent Owner(s)

Patent OwnerAddress
ROLLS-ROYCE DEUTSCHLAND LTD & CO KGESCHENWEG 11 D-15827 BLANKENFELDE-MAHLOW

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Grubba, Tomasz Zeuthen, DE 3 0

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