Patent ID: 9127559
Filing Date: 2015-09-08
Classification: F01D,F05D

Abstract:
1. A turbine diaphragm assembly comprising an annulus of static blades, each static blade comprising: at least an airfoil and an outer platform; and an outer diaphragm ring or segments of a ring for holding the annulus of static blades; wherein facing edges of the outer platforms and the ring are held by an interference fit of the facing edges, the interference fit configured to withstand the forces on the diaphragm during operation of the assembled turbine; wherein the facing edges of the outer platforms and the ring are tapered such that the interference fit is caused by engaging relative motion in an axial direction of the outer diaphragm ring or segments of a ring and the static blades and wherein the facing edges of the outer platforms and the ring include a flange or rim profile extending in a radial direction.