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Patent Searching and Data


Title:
VALVE UNIT AND MANUFACTURING METHOD OF VALVE UNIT
Document Type and Number:
Japanese Patent JP2009209973
Kind Code:
A
Abstract:

To provide a valve unit which can attain miniaturization and lightweight by securing a seal property of the valve unit.

A clearance generation when closing valve is reduced in such a way that a seal section 22 of a valve element 2 is contacted to a valve port 16 of a valve seat 17, that a shaft member 20 is moved in the valve seat 17 direction, that pressurization and heat-treatment are performed while keeping a deformation of depress direction of the seal section 22, that a compression permanent strain profiled in the valve seat 17 and the valve port 16 is generated in the seal section 22, and that a contact surface profile between the valve seat 17 and the seal section 22 of the valve element 2 is processed in identification.


Inventors:
MISHIMA TAKASHI
Application Number:
JP2008051326A
Publication Date:
September 17, 2009
Filing Date:
February 29, 2008
Export Citation:
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Assignee:
AISIN SEIKI
International Classes:
F16K1/36; F16K1/00; F16K41/10
Domestic Patent References:
JP2006260385A2006-09-28
JPH0854075A1996-02-27
JP2006258222A2006-09-28
JP2000039072A2000-02-08
JP3036809U1997-05-06
JPH10132094A1998-05-22
JPH04165163A1992-06-10
JP2001221347A2001-08-17
JPS57171166A1982-10-21