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US 12,110,963 B2Granted
Gearbox assembly
AssigneesGE Avio S.r.l., Ge Aviation Czech S.R.O.
InventorsLeonardo Orlando, Juraj Hrubec
Life of this patent
Estimating the term…
Abstract
A gearbox assembly includes a plurality of planet gears. At least one planet gear of the plurality of planet gears includes a layshaft. The gearbox assembly includes one or more roller bearings disposed within the layshaft and includes a plurality of rolling elements. The gearbox assembly also includes a bearing radial envelope in a range of 1.2 to 4.325. The gearbox assembly can also include a layshaft axial envelope in a range of 3.8 to 12.5.
Claims20
A gearbox assembly comprising:
- a plurality of planet gears, at least one planet gear of the plurality of planet gears including a layshaft;
- one or more roller bearings disposed within the layshaft and including a plurality of rolling elements;
- and
- a bearing radial envelope in a range of 1.2 to 4.325, the bearing radial envelope being equal to
- N
- r
- *
- L
- r
- D
- p
- where Nr is a number of rolling elements in a respective bearing, Lr is a rolling element length of the plurality of rolling elements, and Dp is a gear pitch diameter of the at least one planet gear.
9 more elements
A gearbox assembly comprising:
- a plurality of planet gears, at least one planet gear of the plurality of planet gears including a layshaft;
- one or more roller bearings disposed within the layshaft and including a plurality of rolling elements;
- and
- a layshaft axial envelope in a range of 3.8 to 12.5, the layshaft axial envelope being equal to
- L
- L
- r
- where L is a layshaft axial length of the layshaft and L is a rolling element length of the plurality of rolling elements.
5 more elements
Dependencies are inferred from the claim text.