Back to results
US 10,371,007 B2Granted
Auxiliary oil pump for gas turbine engine gear reduction
AssigneeUnited Technologies Corporation
InventorsBrian P. Cigal, Christopher M. Valva
Life of this patent
Estimating the term…
Abstract
A gas turbine engine has a turbine driving a gear reduction. The gear reduction drives a fan drive shaft assembly to, in turn, drive a fan rotor at a reduced speed relative to the turbine. A generator generates current upon rotation of the fan drive assembly. The generator supplies electric current to an electric motor driven pump. The electric motor driven pump delivers lubricant to components within the gear reduction.
Claims18
A gas turbine engine comprising:
- a turbine driving a gear reduction, and said gear reduction driving a fan drive shaft assembly to, in turn, drive a fan rotor at a reduced speed relative to said turbine;
- a generator to generate current upon rotation of said fan drive assembly;
- said generator supplying electric current to an electric motor driven pump, said electric motor driven pump delivering lubricant to components within said gear reduction;
- and
- wherein said fan drive assembly includes a shell which is driven to rotate with a ring gear in said gear reduction, and said shell having an inner surface, and a chamber being defined between said shell inner surface and said gear reduction and said generator being positioned within said chamber.
2 more elements
Dependencies are inferred from the claim text.