Patent ID: 8087874
Filing Date: 2012-01-03
Classification: F01D,F05D

Abstract:
1. A retention structure for retaining an adjacent turbine, the turbine capable of rotating about a centerline, the retention structure comprising: a center body extending along the centerline and including an outer surface, an enclosed end, an open end, and a contact section, the outer surface adapted to define a first portion of a flowpath, and the contact section extending radially outwardly from the centerline and located on the enclosed end of the center body, the contact section configured to reduce a radial component and a torsional component of a first load that exceeds a first threshold applied to the contact section, when the turbine rotates and contacts the contact section and applies the first load to the contact section; and an energy absorber coupled to the center body and disposed adjacent to the contact section, the energy absorber having an outer surface adapted to define a second portion of the flowpath, the energy absorber further adapted to collapse, when the turbine rotates and contacts the energy absorber and applies a second load that exceeds a second threshold to the energy absorber.