Patent ID: 8517665
Filing Date: 2013-08-27
Classification: F01D,F16C,Y10T

Abstract:
1. A thrust bearing shaft comprising: a body having a radially enlarged thrust disk to be mounted between two static housing surfaces in an air cycle machine, and provides thrust bearing surfaces; a first portion of the thrust bearing shaft extending from one face of said thrust disk; a second portion of the thrust bearing shaft extending from an opposed second face of said thrust disk, and said second portion having sealing ribs, and six holes extending through a body of said thrust bearing shaft to a hollow interior, said sealing ribs being spaced closer to said thrust disk than are said holes; and a ratio of a distance from an end of said second portion remote from said thrust disk to a center of said holes to a distance from the end of said second portion to the second face of said thrust disk being between 0.20 and 0.22.