| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing device for a turbocharger capable of dynamically inhibiting self-excited vibration. SOLUTION: A bearing device 20 for a turbocharger provided with a compressor side bearing 8 and a turbine side bearing 9 as bearings of a rotary shaft 5 connecting a compressor and a turbine is provided with a bearing rotation speed control means controlling rotation speed of the compressor side bearing 8 and the turbine side bearing 9. The bearing rotation speed control means controls each rotation speed based on an operation condition of the engine and/or an operation condition of the turbocharger. COPYRIGHT: (C)2007,JPO&INPIT |
