Patent ID: 8905707
Filing Date: 2014-12-09
Classification: F04D,F16C,F16L,Y10T

Abstract:
1. An air cycle machine comprising: a housing, a compressor section disposed within said housing, a turbine section disposed within said housing and having an expansion area, a fan section disposed outside of said housing, a shaft attaching to and coaxial with said compressor section, said turbine section and said fan section, said fan supported by an air journal bearing and an air thrust bearing, said shaft having a hollow core for porting cooling air from said air journal bearing and said air thrust bearing, said shaft having, on an aft portion thereof, a first opening and a second opening for porting cooling air into the hollow core and, a tube that extends into said expansion area and communicates cooling air from said expansion area to said air thrust bearing and said air journal bearing.