US 11,873,804 B2
Capacity control valve
Daichi Kurihara, Tokyo (JP); Yoshihiro Ogawa, Tokyo (JP); Keigo Shirafuji, Tokyo (JP); Kohei Fukudome, Tokyo (JP); Masahiro Hayama, Tokyo (JP); Takahiro Ejima, Tokyo (JP); and Wataru Takahashi, Tokyo (JP)
Assigned to EAGLE INDUSTRY CO., LTD.
Appl. No. 16/969,175
Filed by EAGLE INDUSTRY CO., LTD., Tokyo (JP)
PCT Filed Feb. 26, 2019, PCT No. PCT/JP2019/007187
§ 371(c)(1), (2) Date Aug. 11, 2020,
PCT Pub. No. WO2019/167912, PCT Pub. Date Sep. 6, 2019.
Claims priority of application No. 2018-033902 (JP), filed on Feb. 27, 2018.
Prior Publication US 2020/0400134 A1, Dec. 24, 2020
Int. Cl. F04B 27/18 (2006.01); F16K 31/06 (2006.01)
CPC F04B 27/1804 (2013.01) [F16K 31/06 (2013.01); F04B 2027/1813 (2013.01); F04B 2027/1827 (2013.01); F04B 2027/1854 (2013.01); F04B 2027/1859 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A capacity control valve for controlling a capacity of a fluid, comprising:
a valve housing provided with a Pc port, a Pd port and a Ps port;
a main valve formed by a main valve seat and a main valve element having a main valve portion, the main valve being configured to close and open a communication between the Pc port and the Pd port when the main valve portion of the main valve element driven by a drive force of a solenoid comes into contact with and separates from the main valve seat;
a pressure-sensitive valve configured to be opened by an ambient pressure;
a hollow tube member which forms a part of the pressure-sensitive valve and is configured to allow the Pc port to communicate with the Ps port through a hollow communication path formed therein when the pressure-sensitive valve is opened; and
an auxiliary communication path which allows the Pc port to communicate with the Ps port independently of the pressure-sensitive valve,
wherein the auxiliary communication path is configured to be able to increase a flow path cross-sectional area thereof after the main valve is closed.