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Title:
CONTROL VALVE
Document Type and Number:
Japanese Patent JP2015021609
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To reduce noise of a control valve.SOLUTION: A control valve 100 includes a seat portion 11 through which a fluid passes, a valve element portion 51 of a poppet 50 moving in a direction of a center line O of the seat portion 11, and a poppet throttle flow channel 30 defined between the seat portion 11 and the valve element portion 51. The poppet throttle flow channel 30 is formed so that an area of the flow channel of a cross-section orthogonal to the center line O of the seat portion 11 and the valve element portion 51 is gradually increased from an upstream side to a downstream side.

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Inventors:
NAKAMURA YOSHINARI
Application Number:
JP2013152595A
Publication Date:
February 02, 2015
Filing Date:
July 23, 2013
Export Citation:
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Assignee:
KAYABA INDUSTRY CO LTD
International Classes:
F16K1/34; F16K15/06; F16K47/02
Domestic Patent References:
JP2007032980A2007-02-08
JP2007292148A2007-11-08
JPH0287178U1990-07-10
JP2010265998A2010-11-25
JPS61136065A1986-06-23
JP2007032979A2007-02-08
JP2005500484A2005-01-06
JPS6246864U1987-03-23
JPH1137311A1999-02-12
JPH1037804A1998-02-13
Attorney, Agent or Firm:
Masaki Goto
Masaaki Iida
Jun Sudo



 
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