Title:
MECHANICAL SEALING DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/007765
Kind Code:
A1
Abstract:
Provided is a mechanical sealing device which is simply configured and wherein a rotation ring can be stably held in a specified axial position, and warping of the sealed surfaces can be prevented, thereby making it possible to obtain appropriate sealing characteristics. In a mechanical sealing device (1), a rotation ring (31) is axially held between a rotation ring locking surface (214) of a sleeve (21) and a rotation ring locking surface (225) of a collar (22). Furthermore, the sleeve (21), the rotation ring fixing collar (22), and the rotation ring (31) are integrated together by means of a knock pin (23) for locking the rotation ring (31). Due to the above, whether positive pressure or negative pressure is applied, the rotation ring (31) does not move, nor do the sealed surfaces of the rotation ring (31) become warped. Moreover, assembly can be simply performed only by means of the knock pin (23).
Inventors:
SUEFUJI YOSHIHIRO (JP)
Application Number:
PCT/JP2010/061795
Publication Date:
January 20, 2011
Filing Date:
July 12, 2010
Export Citation:
Assignee:
EAGLE IND CO LTD (JP)
SUEFUJI YOSHIHIRO (JP)
SUEFUJI YOSHIHIRO (JP)
International Classes:
F16J15/34
Domestic Patent References:
| WO2006022378A1 | 2006-03-02 |
Foreign References:
| JP2004263802A | 2004-09-24 | |||
| JPH0292170A | 1990-03-30 | |||
| JP2538900B2 | 1996-10-02 | |||
| JP2005140258A | 2005-06-02 |
Other References:
See also references of EP 2455641A4
Attorney, Agent or Firm:
MAEDA, Hitoshi et al. (JP)
Hitoshi Maeda (JP)
Hitoshi Maeda (JP)
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