US 12,264,744 B2
Valve
Daichi Kurihara, Tokyo (JP); Akihiro Hashiguchi, Tokyo (JP); Kohei Fukudome, Tokyo (JP); and Keigo Shirafuji, Tokyo (JP)
Assigned to EAGLE INDUSTRY CO., LTD., (JP)
Appl. No. 18/027,599
Filed by EAGLE INDUSTRY CO., LTD., Tokyo (JP)
PCT Filed Sep. 24, 2021, PCT No. PCT/JP2021/034990
§ 371(c)(1), (2) Date Mar. 21, 2023,
PCT Pub. No. WO2022/065410, PCT Pub. Date Mar. 31, 2022.
Claims priority of application No. 2020-162683 (JP), filed on Sep. 28, 2020.
Prior Publication US 2023/0400104 A1, Dec. 14, 2023
Int. Cl. F16K 1/42 (2006.01); F16K 1/36 (2006.01); F16K 17/04 (2006.01)
CPC F16K 1/42 (2013.01) [F16K 1/36 (2013.01); F16K 17/04 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A valve, comprising:
a valve housing having a first space and a second space;
a valve seat disposed between the first space and the second space;
a valve body that is driven in an axial direction by a driving source to be seated on or separate from the valve seat; and
a communication passage that provides communication between the second space and a back space adjacent to the first space,
wherein the first space is formed between the back space and the second space in an axial direction,
a partition that is expandable and contractible in the axial direction is disposed between the valve housing and the valve body, and the back space and the first space are partitioned off from each other in a sealed state by the partition,
wherein the partition includes a ring portion fixed to the valve housing, and a body portion having an accordion shape of which one end is fixed to the ring portion in a sealed state, and
wherein an inner peripheral surface of the ring portion serves as a tilt restriction portion of the valve body.