US 12,264,748 B2
Capacity control valve
Masahiro Hayama, Tokyo (JP); Kohei Fukudome, Tokyo (JP); Toshinori Kanzaki, Tokyo (JP); Wataru Takahashi, Tokyo (JP); and Keigo Shirafuji, Tokyo (JP)
Assigned to EAGLE INDUSTRY CO., LTD., (JP)
Filed by EAGLE INDUSTRY CO., LTD., Tokyo (JP)
Filed on May 23, 2023, as Appl. No. 18/201,095.
Application 18/201,095 is a division of application No. 17/599,474, granted, now 12,072,035, previously published as PCT/JP2020/015177, filed on Apr. 2, 2020.
Claims priority of application No. 2019-071632 (JP), filed on Apr. 3, 2019.
Prior Publication US 2023/0296187 A1, Sep. 21, 2023
Int. Cl. F16K 31/06 (2006.01); F16K 27/02 (2006.01); F16K 17/04 (2006.01)
CPC F16K 27/029 (2013.01) [F16K 31/0655 (2013.01); F16K 31/0658 (2013.01); F16K 31/0693 (2013.01); F16K 17/04 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A capacity control valve comprising:
a valve housing provided with a suction port through which a suction fluid of suction pressure passes, and a control port through which a control fluid of control pressure passes;
a valve element configured to be driven by a solenoid;
a spring that biases the valve element against a driving force of the solenoid; and
a CS valve formed by a CS valve seat and the valve element and configured to open and close a communication between the control port and the suction port in accordance with a movement of the valve element, wherein
the control pressure is controlled by opening and closing the CS valve,
a guide hole with which the valve element is slidable in a substantially sealed state and which guides the valve element, and a valve chamber which is formed between the guide hole and the CS valve seat and in which a part of the valve element is housed are formed in the valve housing,
the valve chamber communicates with the suction port,
an inner peripheral surface of the guide hole and an outer peripheral surface of the valve element are separated from each other to allow the suction fluid which flows into the valve chamber through the suction port to run round therebetween,
the valve element is a rod which is fixed to a movable iron core of the solenoid and which extends in an axial direction toward the CS valve seat, and
the control fluid which is supplied from the control port acts on a tip surface of the rod.