Hamilton Sundstrand Corporation

Pratt-whitney Canada Corp

William T DeGroff

Richard C Welch

Jerzy Makuszewski

Jose Albero

Gerard Howard Bueche

Harry R Carter, Jr

A turbine engine emergency power system includes low and high pressure spools, the lower pressure spool including a low pressure compressor. A turbofan is coupled to the low pressure spool. The turbofan drives the low pressure spool in a windmill condition in which the low pressure turbine fails to provide rotational drive to the turbofan. A generator is rotationally driven by the low pressure spool in the windmill condition. A gear train is used to increase the speed of the generator in one example. In one example embodiment, a centrifugal clutch is used to selectively decouple the generator from the low pressure spool at a predetermined engine speed, which corresponds to normal operating speeds when the turbine engine is under power.

Turbofan emergency generator

An improved ram air turbine for generating emergency aeronautical supplemental power with a plurality of concentric or nested linear bearings for supporting a speed governor yoke plate on a speed governor shaft comprising a movable sleeve that supports the yoke plate and rides on the governor shaft.

RAM air turbine over-speed protector using redundant yoke plate linear bearings

Growing community of inventors

Rockford, IL, United States of America

William T DeGroff