Patent ID: 8926290
Filing Date: 2015-01-06
Classification: F01D

Abstract:
1. An impeller tube assembly, comprising: an annular body having an annular attenuation arm defining first through-holes and an annular base defining second through-holes, a cross-section of the attenuation arm including a flange, a connector opposite the flange and a curvilinear section extending between the flange and the connector, a cross-section of the base including a first side corresponding with the flange where correspondence between the first side and the flange is positional correspondence defined along an axial dimension and a second side opposite the first side and corresponding with the connector where correspondence between the second side and the connector is positional correspondence defined along the axial dimension, the second side is attached with the connector such that each of the first through-holes is defined in positional alignment with a corresponding one of the second through-holes.