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US 8,894,538 B2Granted
Gas turbine engine with geared architecture
AssigneeUnited Technologies Corporation
InventorsMichael E. McCune, Lawrence E. Portlock, Frederick M. Schwarz
Life of this patent
Estimating the term…
Abstract
A geared architecture with a flex mount for a fan drive gear system.
Claims12
A geared architecture for a gas turbine engine comprising:
- a fan shaft and a fan supported on said fan shaft and defining a bypass flow ratio greater than about six;
- a frame which supports said fan shaft;
- a gear system which drives said fan shaft, said gear system having a gear reduction ratio of greater than or equal to about 2.3;
- a torque frame which at least partially supports said gear system;
- an input coupling to said gear system;
- and
- a low pressure turbine coupled to rotatably drive said input coupling, said low pressure turbine defining a pressure ratio that is greater than about five (5).
4 more elements
Dependencies are inferred from the claim text.