Title:
SEALING DEVICE AND METHOD OF MOUNTING SAME
Document Type and Number:
WIPO Patent Application WO/2010/029820
Kind Code:
A1
Abstract:
A sealing device (10) which seals, by means of a PTFE seal lip (13), the outer periphery of a valve shaft of a butterfly valve used for an EGR system of a vehicle. The sealing device (10) is provided with mounting rings (11, 12) press-fitted in and fixed to a valve shaft insertion hole (102), and also with the seal lip (13) held by the mounting rings (11, 12) and made to be in slidable contact with the outer peripheral surface of the valve shaft. The seal lip (13) is formed in a circular disc shape using a fluororesin, and an inner diameter section (13b) of the seal lip (13) is forcibly deformed by the valve shaft so as to face the flow path (101) side.
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Inventors:
FURUYAMA HIDEYUKI (JP)
WATANABE TATSUHIKO (JP)
WATANABE TATSUHIKO (JP)
Application Number:
PCT/JP2009/063720
Publication Date:
March 18, 2010
Filing Date:
August 03, 2009
Export Citation:
Assignee:
NOK CORP (JP)
FURUYAMA HIDEYUKI (JP)
WATANABE TATSUHIKO (JP)
FURUYAMA HIDEYUKI (JP)
WATANABE TATSUHIKO (JP)
International Classes:
F16J15/32; F02M25/07
Foreign References:
| JP2008095924A | 2008-04-24 | |||
| JPH0218970U | 1990-02-08 | |||
| JP2008175322A | 2008-07-31 | |||
| JP2007333003A | 2007-12-27 |
Other References:
See also references of EP 2327909A4
None
None
Attorney, Agent or Firm:
NOMOTO YOICHI (JP)
Yoichi Nomoto (JP)
Yoichi Nomoto (JP)
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