| 摘要 |
PROBLEM TO BE SOLVED: To provide a turbo supercharger simply configured, manufacturable and maintainable at low cost, and having increased turbine performance. SOLUTION: In the gas inlet casing 27 of a turbo supercharger 10 for compressing the air for combustion of an internal combustion engine and forcibly feeding the high dense air into the combustion chamber of the internal combustion engine, the space formed between an inner casing 21 and an outer casing 22 form a first exhaust gas flow passage 26 for guiding the exhaust gas discharged from the internal combustion engine to the outer peripheral side of a turbine nozzle 25. A second exhaust gas flow passage 36 for guiding the exhaust gas branched from the intermediate portion of the first exhaust gas flow passage 26 to the inner peripheral side of the turbine nozzle 25 is formed on the inner peripheral side of the inner casing 21. The intermediate portion of the first exhaust gas flow passage 26 communicates with the gas inlet of the second exhaust gas flow passage 36 through an exhaust gas tube 38, and an opening/closing valve 41 is connected to the intermediate portion of the exhaust gas tube 38. COPYRIGHT: (C)2010,JPO&INPIT
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