US 12,486,912 B2
Switching valve
Tadanobu Kawato, Tokyo (JP); Takashi Shioi, Tokyo (JP); Akitaka Matsuzaki, Tokyo (JP); Naoki Nishimura, Tokyo (JP); Ryota Urakawa, Tokyo (JP); Hironori Tanikawa, Tokyo (JP); and Noriyuki Ogawa, Tokyo (JP)
Assigned to EAGLE INDUSTRY CO., LTD., Tokyo (JP)
Appl. No. 18/691,439
Filed by EAGLE INDUSTRY CO., LTD., Tokyo (JP)
PCT Filed Sep. 14, 2022, PCT No. PCT/JP2022/034389
§ 371(c)(1), (2) Date Mar. 12, 2024,
PCT Pub. No. WO2023/048045, PCT Pub. Date Mar. 30, 2023.
Claims priority of application No. 2021-153198 (JP), filed on Sep. 21, 2021.
Prior Publication US 2024/0401709 A1, Dec. 5, 2024
Int. Cl. F16K 11/074 (2006.01)
CPC F16K 11/074 (2013.01) 6 Claims
OG exemplary drawing
 
1. A switching valve, comprising:
a stator that has a seat surface;
a casing that is hermetically connected to the stator; and
a rotor that has a contact surface coming into contact with the seat surface and is disposed in a space formed between the stator and the casing,
wherein the rotor is rotationally driven, with respect to the stator, between a first rotation position, a second rotation position rotating toward a first side from the first rotation position, and a third rotation position rotating toward a second side opposed to the first side from the first rotation position and forms different flow path patterns at the first rotation position, the second rotation position, and the third rotation position of the rotor,
wherein the stator is provided with a plurality of inlet ports and outlet ports through which a working fluid passes,
wherein the rotor is provided with at least two through-holes and a communication groove configured for selectively communicating between the inlet port and the outlet port,
wherein the casing is provided with a fluid inlet opening configured to communicate with each of the through-holes via the space, and
wherein at least one of the through-holes always communicates with any of the outlet ports in a rotation range of the rotor.