초록

A gas turbine engine includes a gear system driven by a first and second counter rotating low pressure shaft and a fan driven by the gear system.

대표청구항 ▼

What is claimed is: 1. A gas turbine engine comprising:a first low pressure shaft about an axis of rotation;a second low pressure shaft, said second low pressure shaft counter-rotates relative to said first low pressure shaft about said axis of rotation to form a counter-rotational low pressure spoo

What is claimed is: 1. A gas turbine engine comprising:a first low pressure shaft about an axis of rotation;a second low pressure shaft, said second low pressure shaft counter-rotates relative to said first low pressure shaft about said axis of rotation to form a counter-rotational low pressure spool with a counter-rotating low pressure compressor and a counter-rotating low pressure turbine;a high pressure spool which rotates about said axis of rotation, said high pressure spool defined radially outboard of said counter-rotational low pressure spool;a gear system driven by said first low pressure shaft and said second low pressure shaft, said gear system located adjacent said counter-rotating low pressure turbine driven by said first low pressure shaft and said second low pressure shaft; anda fan driven by said gear system, said fan axially forward of said counter-rotational low pressure compressor.