Title:
【発明の名称】ステムシール
Document Type and Number:
Japanese Patent JP2721330
Kind Code:
B2
Abstract:
A valve stem seal comprising a cylindrical stem-sealing membranes 6 and a membrane supporting flange 7. The membrane has a corrugated profile which defines on or more loop-shaped channels 11 bounded by contact surfaces 13 on a radially inner face and each channel is inclined at 5 DEG -10 DEG with respect to a plane perpendicular to the longitudinal axis. The channels form a labyrinth seal for any fluid leaking along the outer surface of the stem. A support bearing 8 for the stem is provided on the membrane supporting flange.
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Inventors:
TERENSU PIITAA NIKORUSON
MAIKERU JON KAZUERU TOOZAA
MAIKERU JON KAZUERU TOOZAA
Application Number:
JP6459196A
Publication Date:
March 04, 1998
Filing Date:
March 21, 1996
Export Citation:
Assignee:
TERENSU PIITAA NIKORUSON
International Classes:
F16J15/32; F16J15/447; F16J15/52; F16J15/56; F16K41/00; F16K41/10; (IPC1-7): F16J15/32; F16J15/447; F16J15/56; F16K41/00
Attorney, Agent or Firm:
Soga Doteru (6 people outside)