EXHAUST GAS TURBINE SUPERCHARGER

摘要

An axial flow type exhaust gas turbine supercharger (TC) enabling maintainability to be secured by easily attaching/detaching an inner casing, capable of solving problems in thermal expansion and an increase in weight which make its design difficult, and formed to rotate a coaxial compressor with a shaft output provided by the expansion of exhaust gas led into an axial flow turbine (20). The exhaust gas turbine supercharger comprises a gas inlet casing (25) of double structure in which an inner casing (21) and an outer casing (22) formed separately from each other are formed integrally with each other by bolting and a space formed between both casings (21) and (22) forms an exhaust gas flow passage (24) leading the exhaust gas to a turbine nozzle (23). The exhaust gas flow passage (24) is formed all around the periphery of the turbine in the rotating direction and the inner casing (21) is formed detachable in the axial direction.