FLOW REGULATING VALVE

Japanese Patent JP2017089864

A

PROBLEM TO BE SOLVED: To provide a flow regulating valve which can effectively reduce the noise generated due to a pressure fluctuation and a refrigerant separation phenomenon during passage through a valve port, and can achieve reduction of a pressure loss and so forth.SOLUTION: A flow regulating valve 1 comprises a valve body 5 provided with a valve chamber 6 and a valve port 10, and a valve element 30 having a curved surface part 33 which changes the flow rate of fluid flowing through the valve port 10 according to a lift amount, in which the curvature or the control angle of the curved surface part 33 is continuously or stepwisely increased according as getting close to the end. The diameter of the valve port 10 is increased sequentially in three stages or more according as being separated from the valve chamber 6. Specifically, sequentially from the valve chamber 6 side, a first valve port part 11 having a diameter D1, a second valve port part 12 of diameter D2 (>D1) and a third valve port part 13 of a diameter D3 (>D2) are provided. More preferably, D1, D2 and D3 are set such that (a valve port ratio: D2/D1) and (a valve port ratio: D3/D2) fall in a specific range.SELECTED DRAWING: Figure 1

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SUGANUMA TAKESHI
INO YASUTOSHI
OMORI ERI

JP2015224907A

May 25, 2017

November 17, 2015

Click for automatic bibliography generation  

FUJI KOKI KK

F16K1/42; F16K1/38; F16K47/02; F25B41/06

JP2005221095A	2005-08-18
JP2012047213A	2012-03-08
JP2012082896A	2012-04-26
JP5696093B2	2015-04-08
JP2014081046A	2014-05-08
JPH0683946U	1994-12-02
JP2004340260A	2004-12-02

Yusuke Hiraki
Sekiya Mitsuo
Ishikawa Takiharu
Naoki Takemura

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