| 摘要 |
PURPOSE:To reduce noise of a turbo charger by supporting a shaft by an outer bearing and an inner bearing and forming an oil film between a housing and outer bearing, between outer bearing and inner bearing, and between inner bearing and shaft. CONSTITUTION:A thrust bearing 25 is arranged in a storage section 24 which is formed by thrust bushes 15, 16. Oil is supplied in it to form an oil film, and vibration in axial direction of a shaft 13 is controlled by this oil film. The shaft is supported by an outer bearing 26 and an inner bearing 31 which are double. Vibration in the direction of diameter is controlled by triple oil films which are formed between a housing 11b and outer bearing 26, between outer bearing and inner bearing 31, and between inner bearing 31 and shaft 13. |
