| 摘要 |
PROBLEM TO BE SOLVED: To achieve a structure for supplying sufficient lubricating oil to a thrust bearing and a thrust collar, by simple processing.SOLUTION: A supercharger includes a thrust collar 20 fixed to a turbine shaft 7, a turbine side bearing 21 arranged in a bearing housing 2, opposed in the axial direction of the turbine shaft to the thrust collar and receiving a thrust load acting via the thrust collar from the compressor impeller 9 side, and a compressor side bearing 22 opposed in the axial direction of the turbine shaft and receiving the thrust load acting via the thrust collar from the turbine impeller 8 side, and the bearing housing is provided with an oil passage 24 for supplying the lubricating oil up to the bearing relatively positioned inside the bearing housing out of the turbine side bearing and the compressor side bearing from the bearing housing outside. |
