Patent ID: 8282349
Filing Date: 2012-10-09
Classification: F01D,F05D,Y10T

Abstract:
1. A steam turbine rotor comprising: at least one bearing section comprising a rotor portion and an interference portion extending outwardly from said rotor portion, said interference portion comprising a radially outer surface; and a steampath section comprising a flange extending outwardly from at least one end, said flange comprising a radially inner surface defining a bore, said bore sized to receive said interference portion therein such that said interference portion outer surface is positioned adjacent to said flange inner surface to enable said at least one bearing section to couple to said steampath section, wherein the flange further comprises an annular end surface comprising a first plurality of circumferentially-spaced openings sized to receive a fastener that couples said bearing section to said steampath section, and a second plurality of circumferentially-spaced openings sized to receive an alignment mechanism for aligning said bearing section and said steampath section, centers of said first plurality of openings and said second plurality of openings being a substantially same radial distance from a central rotational axis of the rotor.