Patent ID: 6053699
Filing Date: 2000-04-25
Classification: F01D,Y10T

Abstract:
A steam turbine comprising:a) a steam-turbine shaft having a generally longitudinally-extending axis;b) a first turbine section having rotatable steam-turbine blades fixedly attached to, and radially extending from, said shaft, wherein steam enters said first turbine section at a first pressure;c) a second turbine section longitudinally spaced apart from said first turbine section without an intervening bearing and having rotatable steam-turbine blades fixedly attached to, and radially extending from, said shaft, wherein steam enters said second turbine section at a second pressure which is different from said first pressure; andd) a second brush-seal assembly longitudinally disposed between said first and second turbine sections and radially disposed proximate said shaft, wherein said second brush seal assembly includes a plurality of bristles, and wherein said steam turbine is devoid of any backup seal to said bristles of said second brush seal assembly.