US 11,982,371 B2
Fluid control valve and fluid control apparatus
Kazuya Shakudo, Kyoto (JP); and Yuya Kawai, Kyoto (JP)
Assigned to HORIBA STEC, Co., Ltd., Kyoto (JP)
Filed by HORIBA STEC, Co., Ltd., Kyoto (JP)
Filed on Nov. 8, 2022, as Appl. No. 18/053,627.
Claims priority of application No. 2021-191109 (JP), filed on Nov. 25, 2021.
Prior Publication US 2023/0160493 A1, May 25, 2023
Int. Cl. F16K 31/16 (2006.01); F16K 11/04 (2006.01); F16K 1/42 (2006.01); F16K 1/52 (2006.01); F16K 31/00 (2006.01); F16K 31/02 (2006.01); F16K 37/00 (2006.01); F16K 41/10 (2006.01); G01F 1/40 (2006.01); G01F 1/684 (2006.01); G01F 5/00 (2006.01); G01F 15/00 (2006.01); G05D 7/06 (2006.01)
CPC F16K 31/16 (2013.01) [F16K 11/04 (2013.01); F16K 1/42 (2013.01); F16K 1/52 (2013.01); F16K 31/007 (2013.01); F16K 31/02 (2013.01); F16K 37/005 (2013.01); F16K 41/10 (2013.01); G01F 1/40 (2013.01); G01F 1/6842 (2013.01); G01F 1/6847 (2013.01); G01F 5/00 (2013.01); G01F 15/005 (2013.01); G05D 7/0635 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A fluid control valve comprising:
an orifice having a valve seat surface;
a valve body having a seating surface seated on the valve seat surface;
a driving unit configured to drive the valve body;
a channel block provided with a housing recess for housing the orifice and the valve body, wherein
the orifice includes:
a vertical channel that opens to the valve seat surface and to a facing surface facing the valve seat surface; and
a horizontal channel that opens to an outer circumferential surface between the valve seat surface and the facing surface, and intersects with the vertical channel,
the vertical channel is split into a plurality of branch channels with a space therebetween, on a side of the facing surface, from an intersection with the horizontal channel, and
central axes of the plurality of branch channels are included in the vertical channel before intersecting with the horizontal channel.