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Inner shell radial pin geometry and mounting arrangement

United States Patent

October 1, 2002
View the Complete Patent at the US Patent & Trademark Office
Circumferentially spaced arrays of support pins are disposed through access openings in an outer turbine shell and have projections received in recesses in forward and aft sections of an inner turbine shell supported from the outer shell. The projections have arcuate sides in a circumferential direction affording line contacts with the side walls of the recesses and are spaced from end faces of the recesses, enabling radial and axial expansion and contraction of the inner shell relative to the outer shell. All loads are taken up in a tangential direction by the outer shell with the support pins taking no radial loadings.
Leach; David (Niskayuna, NY), Bergendahl; Peter Allen (Scotia, NY)
General Electric Company (Schenectady, NY)
09/ 665,690
September 20, 2000
This invention was made with Government support under Contract No. DE-FC21-95MC31176 awarded by the Department of Energy. The Government has certain rights in this invention.