US 12,031,531 B2
Capacity control valve
Kohei Fukudome, Tokyo (JP); Masahiro Hayama, Tokyo (JP); Takahiro Ejima, Tokyo (JP); and Keigo Shirafuji, Tokyo (JP)
Assigned to EAGLE INDUSTRY CO., LTD., (JP)
Appl. No. 17/603,291
Filed by EAGLE INDUSTRY CO., LTD., Tokyo (JP)
PCT Filed Apr. 21, 2020, PCT No. PCT/JP2020/017168
§ 371(c)(1), (2) Date Oct. 12, 2021,
PCT Pub. No. WO2020/218284, PCT Pub. Date Oct. 29, 2020.
Claims priority of application No. 2019-082964 (JP), filed on Apr. 24, 2019.
Prior Publication US 2022/0213878 A1, Jul. 7, 2022
Int. Cl. F04B 27/18 (2006.01); F16K 31/06 (2006.01)
CPC F04B 27/1804 (2013.01) [F16K 31/0613 (2013.01); F16K 31/0655 (2013.01); F04B 2027/1813 (2013.01); F04B 2027/1827 (2013.01); F04B 2027/1859 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A capacity control valve comprising:
a valve housing that is provided with a suction port through which a suction fluid of a suction pressure passes and a control port through which a control fluid of a control pressure passes;
a CS valve that includes a CS valve element which is axially driven by a solenoid and a CS valve seat which is provided between the suction port and the control port and is brought into contact with and separated from the CS valve element; and
a biasing member configured to bias the CS valve element in a valve closing direction of the CS valve,
wherein a space is formed inside the valve housing and partially defined by an axial end face of the CS valve element,
the CS valve element is disposed between the space and the solenoid in an axial direction and between the suction port and the space in the axial direction,
the CS valve is configured to open and close a communication between the control port and the suction port,
the suction fluid flows into the space through the suction port,
the CS valve element is provided with a through hole extending in the axial direction, and
the space and the suction port communicate with each other by way of the through hole, and
wherein the space is closed except that the space communicates with the through hole.