| 摘要 |
PROBLEM TO BE SOLVED: To reduce or prevent a blow-by phenomenon and access of compressed air from the compressor side. SOLUTION: A turbo supercharger 1 has a rotor axis 5 regulating a rotational axis. A turbine housing 2 includes at least one gas supply flow passage for supplying exhaust gas thereto and a gas exhaust flow passage. One end of the rotor axis is projected inside of the housing. A turbine rotor 4 is attached to the axis 5. A compressor housing 3 is connected to the turbine housing and includes at least one air supply flow passage for supplying air to be compressed and an exhaust flow passage for delivering the compressed air. The other end of the axis is projected inside of the compressor housing and supports a compressor rotor 21. There provided a bearing supporting the axis. The bearing is in the region of the compressor rotor, and includes two seals separately arranged in an axial direction. COPYRIGHT: (C)2004,JPO
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