Title:
密封装置の装着方法
Document Type and Number:
Japanese Patent JP5304995
Kind Code:
B2
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.
Inventors:
Hideyuki Furuyama
Tatsuhiko Watanabe
Tatsuhiko Watanabe
Application Number:
JP2008230943A
Publication Date:
October 02, 2013
Filing Date:
September 09, 2008
Export Citation:
Assignee:
NOK CORPORATION
International Classes:
F16J15/32; F02M25/07
Domestic Patent References:
| JP2007032301A | ||||
| JP2008095924A | ||||
| JP2018970U | ||||
| JP2008175322A | ||||
| JP2007333003A |
Attorney, Agent or Firm:
Yoichi Nomoto