Title:
SEALING STRUCTURE
Document Type and Number:
Japanese Patent JP2014055660
Kind Code:
A
Abstract:
To provide a sealing structure capable of inhibiting the deterioration of a magnetic fluid even under an environment where a temperature of a rotation shaft becomes high.
A sealing structure 100 includes: a rotation shaft 10; a housing 60 having a shaft hole of the rotation shaft 10; and a magnetic fluid seal 20 which seals an annular gap between the rotation shaft 10 and the shaft hole. In the rotation shaft 10, a passage, which passes a region where the magnetic fluid seal 20 is disposed at the outer peripheral side in an axial line direction, is formed. Further, a rotary joint 120 which may supply a coolant to the passage is provided.
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Inventors:
SATO KAZUHIKO
GOMPEI HAYATO
GOMPEI HAYATO
Application Number:
JP2012202449A
Publication Date:
March 27, 2014
Filing Date:
September 14, 2012
Export Citation:
Assignee:
EAGLEBURGMANN JAPAN CO LTD
International Classes:
F16J15/43
Domestic Patent References:
| JPH06257675A | 1994-09-16 | |||
| JP2008156746A | 2008-07-10 | |||
| JP2010065736A | 2010-03-25 |
Attorney, Agent or Firm:
Kazunobu Sera
Hiroyasu Kanai
Mayuko Wakuda
Koichiro Sakai
Hiroyasu Kanai
Mayuko Wakuda
Koichiro Sakai