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Title:
CONTROL VALVE
Document Type and Number:
Japanese Patent JP2013133914
Kind Code:
A
Abstract:

To provide a control valve capable of being correctly and smoothly operated without any abnormal noise or general noise caused by vibration of a valve element when the control valve is opened.

In a control valve, a valve element 36 is guided by a guide bush 24, the valve element is moved in an approaching/separating direction to/from a valve seat 20, and the valve element opens/closes a valve port 22 of the valve seat. The valve element includes a first flange 66 located at a through hole 38 passing through the valve element of the guide bush when the valve element is opened, and a second flange 68 separate from the first flange and located in a vicinity of an opening of a pressure equalizing hole 42 formed in the guide bush. A first groove 70 is formed between the first and second flanges, and a second groove 72 is formed between the second flange and a base end 36C of the valve element.


Inventors:
ISHIGURO MOTOYASU
NAKAGAWA DAIKI
MINAMIZAWA HIDEKI
KOBAYASHI KAZUYA
MIYADERA HIROTAKA
Application Number:
JP2011286076A
Publication Date:
July 08, 2013
Filing Date:
December 27, 2011
Export Citation:
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Assignee:
SAGINOMIYA SEISAKUSHO INC
International Classes:
F16K31/04; F16K47/02
Domestic Patent References:
JP2001027335A2001-01-30
JPS62140286U1987-09-04
JPH11287337A1999-10-19
JP3145048U2008-09-25
JPH0242286A1990-02-13
JPH09317922A1997-12-12
JP2010043727A2010-02-25
Attorney, Agent or Firm:
Koji Makimura
Patent corporation ssinpat



 
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