Patent ID: 8677728
Filing Date: 2014-03-25
Classification: F01D,F02C,F16C

Abstract:
1. A turbine machine comprising: a housing having an annular surface; a shaft having an axis; a bearing assembly mounting the shaft for rotation and non-axial movement in the housing about the axis; annular radial fluid flow impeller means including a body portion concentrically affixed to the shaft and a plurality circumferentially spaced apart fluid working blades extending from the body, the blades having curvilinear shaped free ends extending between fluid inlet and outlet ends of the blades, one of the blade ends being axial fluid flow ends and the other of the blade ends being radial fluid flow ends; a radial flow directing means for radially directing the fluid associated with the radial fluid flow blade ends and having an annular surface; a shroud includes an annular surface and an inner surface having a curvilinear shaped surface in closely spaced sealing relation with and matching the blade curvilinear shaped free ends; a first attachment assembly for affixing the flow directing means to the housing; a second attachment assembly for affixing the shroud to the flow directing means; the improvement comprising: the first attachment assembly including screw threads on the housing annular surface and mating with screw threads on the flow directing means annular surface for adjustably affixing the flow directing means to the housing and for clearance adjusting the closely spaced sealing relation by rotating the attachment assembly screw threads relative to each other.