| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve shortage of lubricant in a gap with respect to a rotary shaft even in the case it is applied to a rotary machine in which a rotary shaft rotates at a high speed such as a turbo-charger. <P>SOLUTION: The floating bush bearing 50 is structured so that a floating bush 52 is provided rotatably between the rotary shaft w and a bearing housing 14, and a communication hole 54 for lubricating oil is formed to put the outer peripheral surface 52b of the floating bush 52 in communication with its inner surface 52a to feed the lubricating oil from the bearing housing 14 to the outer peripheral surface 52b and inner surface 52a of the floating bush 52, wherein the communication hole 54 for lubricating oil is inclined from the outer peripheral surface 52b to the inner surface 52a of the floating bush bearing 50 so that it proceeds from the downstream toward upstream about the rotating direction of the rotary shaft w, whereby pressing force directed toward the inner surface of the floating bush 52 owing to the inclined surface of the communication hole 54 is given to the lubricating oil having entered into the communication hole 54 for lubricating oil from the outer peripheral surface 52b of the floating bush 52. <P>COPYRIGHT: (C)2012,JPO&INPIT |
