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Patent Searching and Data


Title:
RELIEF VALVE
Document Type and Number:
Japanese Patent JP2012017796
Kind Code:
A
Abstract:

To provide a relief valve which can damp sound and vibration caused when a member constituting the relief valve abuts on the other members in operation.

The relief valve includes: a valve body 2 having a first port 11 and a second port 12; a sleeve 4 which is received in the valve body 2 and has an inlet port 7 communicating with the first port 11 and a discharge port 8 communicating with the second port 12; a valve 5 which is received in the sleeve 4 and prohibits the communication between the inlet port 7 and the discharge port 8 when the valve is moved to the inlet port 7 side while permitting the communication between the inlet port 7 and the discharge port 8 when the valve is moved to the side opposite to the inlet port 7; an energizing member 6 for energizing the valve 5 to the inlet port 7 side; a valve position changing mechanism 13 for changing the relative position of the valve body 2 to the sleeve 4 and to the valve 5; and a plug 3 which is supported and fixed to the valve body 2 through an elastic member 16 and abuts on the end 4b of the sleeve 4 when the sleeve 4 moves to the sliding end point opposite to the inlet port 7.


Inventors:
MIURA SADANORI
ISODA ATSUO
ENDO GENSHIRO
KARITA KOJI
Application Number:
JP2010155128A
Publication Date:
January 26, 2012
Filing Date:
July 07, 2010
Export Citation:
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Assignee:
AISIN SEIKI
TOYOTA MOTOR CORP
International Classes:
F16K17/06; F16K47/02
Domestic Patent References:
JP2007057086A2007-03-08
JPH04107424U1992-09-17
JP2007024071A2007-02-01
JPS56173263U1981-12-21
JPS4888516A1973-11-20
JPH04105676U1992-09-11
JPH01180073U1989-12-25
JPH0351112U1991-05-17
JPS5785664U1982-05-27
JPS6162681A1986-03-31
Other References:
JPN1006505946;
Attorney, Agent or Firm:
Shuichiro Kitamura
Mountain Saki Tetsuya