EXHAUST GAS TURBINE CASING

摘要

PROBLEM TO BE SOLVED: To improve a casing of an exhaust turbine, improved in centering of a turbine casing to a shaft supported on a bearing casing so that an exhaust turbine has high efficiency and having as large flexibility as possible concerning positioning of an outer turbine casing part to the bearing casing. SOLUTION: This invention relates to an exhaust turbine including: a turbine wheel 6 mounted on a shaft; a bearing casing 4 for bearing a rotatable shaft 3; a gas inlet casing 1 supported on the bearing casing and concentrically surrounding the bearing casing in a support range; and a centering ring 2 for centering the gas inlet casing to the shaft born by the bearing casing. The centering ring and the bearing casing or the gas inlet casing are provided with a groove and a radial or axial centering projection engaged with the groove. COPYRIGHT: (C)2005,JPO&NCIPI