Title:
SEAL RING
Document Type and Number:
WIPO Patent Application WO/2004/011827
Kind Code:
A1
Abstract:
A seal ring that maintains stable sealing capability for a long period. In a first seal portion (4), a line contact portion that is in linear contact with a side-wall face, on the side of fluid not to be sealed, of an annular groove is totally circumferentially and continuously provided from one side of a separation portion (2) to the other side. A linear contact portion provided at a convex portion (21) of the separation portion (2) and a linear contact portion provided at a concave portion (24) of the separation portion (2) are arranged so as to be radially separated from each other.
Inventors:
NAKAOKA SHINYA (JP)
EGUCHI NOBUYUKI (JP)
JOTAKI NAOHIRO (JP)
YASUDOMI TAKAAKI (JP)
EGUCHI NOBUYUKI (JP)
JOTAKI NAOHIRO (JP)
YASUDOMI TAKAAKI (JP)
Application Number:
PCT/JP2003/009469
Publication Date:
February 05, 2004
Filing Date:
July 25, 2003
Export Citation:
Assignee:
NOK CORP (JP)
NAKAOKA SHINYA (JP)
EGUCHI NOBUYUKI (JP)
JOTAKI NAOHIRO (JP)
YASUDOMI TAKAAKI (JP)
NAKAOKA SHINYA (JP)
EGUCHI NOBUYUKI (JP)
JOTAKI NAOHIRO (JP)
YASUDOMI TAKAAKI (JP)
International Classes:
F16J9/14; F16J9/20; F16J15/3272; F16J15/44; (IPC1-7): F16J15/18
Foreign References:
| JPH0814396A | 1996-01-16 | |||
| JPH08159290A | 1996-06-21 | |||
| JPH0828709A | 1996-02-02 | |||
| JPH09317886A | 1997-12-12 | |||
| JPH08159291A | 1996-06-21 | |||
| JPS58127255U | 1983-08-29 | |||
| US4438935A | 1984-03-27 |
Other References:
See also references of EP 1541908A4
Attorney, Agent or Firm:
Sera, Kazunobu (4-10 Higashi Nihonbashi 3-chom, Chuo-ku Tokyo, JP)
Download PDF: