公开(公告)号：US20170292610A1

公开(公告)日：2017-10-12

申请号：US15374015

申请日：2016-12-09

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Yong Bok LEE ,  Eo Jin KIM ,  Jeon Kook LEE

IPC: F16J15/3288 ,  F16C33/76 ,  F16J15/3296

CPC classification number: F16J15/3288 ,  F16C33/7886 ,  F16C2202/36 ,  F16C2233/00 ,  F16C2360/23 ,  F16J15/00 ,  F16J15/3296

Abstract: An oil sealing device for preventing a leakage of an oil of a bearing which supports a rotary shaft of a rotating machine has a brush member having a plurality of bristles in contact with the rotary shaft, and an actuator configured to move the brush member in a length direction of the rotary shaft, wherein a sloped surface having different heights along a length direction of the rotary shaft is formed at the rotary shaft, and wherein when the bristles are worn, the actuator moves the brush member in a length direction of the rotary shaft so that the bristles comes into contact with the sloped surface.