Patent ID: 8425372
Filing Date: 2013-04-23
Classification: F01D,F02C,F02K,F05D,Y10T

Abstract:
1. A geared turbofan emergency power apparatus comprising: a planetary gear set having a first, second and third rotative component; a turbine shaft from a gas turbine engine integrally connected as a rotary input to the second rotative component; a rotary ouput; a fan integrally connected with the third rotative component; a first brake for braking said first rotative component against rotation thereof; a second brake for braking said second rotative component against rotation thereof; and wherein said rotary input drives said rotary output if said first brake brakes said first rotative component; and wherein said rotary output drives the first rotative component which thereby drives a power generating component when the second brake brakes said second rotative component in an emergency condition.