Title:
MECHANICAL SEAL
Document Type and Number:
WIPO Patent Application WO/2019/194154
Kind Code:
A1
Abstract:
Provided is a mechanical seal in which a rotational force is unlikely to be transmitted to a bolt and in which the bolt can be prevented from loosening. This mechanical seal 1 is provided with: rotating sealing rings 20, 21 which rotate with a rotating shaft 2; stationary sealing rings 30, 31; and an adaptor 5 which holds the stationary sealing rings 30, 31, the adaptor 5 being affixed to a seal cover 3 by bolts 11. The mechanical seal 1 is further provided with a plurality of holders 9 which are in axial contact with the adapter 5, and which are provided with through-holes 9d into which the bodies 11a of the bolts 11 engaged with threaded holes 3f in the seal cover 3 are inserted. The plurality of holders 9 are arranged to surround the rotating shaft 2.
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Inventors:
KITO MASAKAZU (JP)
TAKIGAHIRA YOSHIAKI (JP)
TAKIGAHIRA YOSHIAKI (JP)
Application Number:
PCT/JP2019/014573
Publication Date:
October 10, 2019
Filing Date:
April 02, 2019
Export Citation:
Assignee:
EAGLE IND CO LTD (JP)
EAGLEBURGMANN JAPAN CO LTD (JP)
EAGLEBURGMANN JAPAN CO LTD (JP)
International Classes:
F16J15/34; F16B5/02; F16B39/24; F16B43/00
Domestic Patent References:
| WO2014034582A1 | 2014-03-06 |
Foreign References:
| JP2017025994A | 2017-02-02 | |||
| JP2006519348A | 2006-08-24 | |||
| JP4684421B2 | 2011-05-18 | |||
| JP6196727B2 | 2017-09-13 |
Other References:
See also references of EP 3779247A4
Attorney, Agent or Firm:
SHIGENOBU Kazuo et al. (JP)
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