紋り弁の流量安定装置

Japanese Patent JP3769704

B2

A valve includes a fluid inlet passageway coupled to a fluid outlet passageway through an orifice and a valve plug which is moveable with respect to the orifice to vary the rate of fluid flow through the orifice. A seat ring is disposed at the orifice and includes a structural member extending into the fluid inlet passageway adjacent the orifice which prevents disturbances, such as intermittent vortices, from forming within the fluid in the fluid inlet passageway and which, thereby, provides a stable rate of fluid flow through the valve. The structural member may, alternatively, be connected to the valve plug or a wall of the fluid inlet passageway.

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Duvolak, Allen, Dee.
Westwater, David, Jay.
Schaffbuch, Paul, Jay.

JP51908497A

April 26, 2006

November 12, 1996

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Fisher Controls International Limited Liability Company

F16K1/32; F16K47/08; F16K47/04

JP59140967A
JP59140973A
JP4258595A
JP58042459U
JP59140968A
JP56171605U
JP57107469A

FR2238884A1
DE3138459A
DE3717128A
DE2110149A
EP0216992A1
US3776278
US4326554
GB2019532A
GB2133902B
DE2648540A

Yoshihiro Tsunoda

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