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US 11,536,257 B2Granted
Capacity control valve
AssigneeEagle Industry Co., Ltd.
InventorsMasahiro Hayama, Kohei Fukudome, Takahiro Ejima, Daichi Kurihara, Wataru Takahashi, Keigo Shirafuji, Yoshihiro Ogawa
Life of this patent
Estimating the term…
Abstract
A capacity control valve includes a CS valve which opens and closes a communication between the control fluid and the suction fluid by the movement of rods and an urging member configured to urge the primary valve body and the rods in opposite directions and the primary valve body and the rods are disposed so as to be relatively movable in an axial direction.
Claims17
A capacity control valve comprising:
- a valve housing provided with a discharge port allowing a discharge fluid of a discharge pressure to pass therethrough, a suction port allowing a suction fluid of a suction pressure to pass therethrough, and a control port allowing a control fluid of a control pressure to pass therethrough, a drive rod driven by a solenoid, and a primary valve including a primary valve seat and a primary valve body;
- the primary valve body opening and closing a communication between the discharge port and the control port by the movement of the drive rod, the capacity control valve further comprising:
- a CS valve includes a sub-valve body connected to and driven by the drive rod, where the sub-valve body and opens and closes a communication between the control port and the suction port;
- and
- an urging member configured to urge the primary valve body and the drive rod in opposite directions,
- wherein the sub-valve body is disposed between the primary valve body and the drive rod such that the primary valve body is driven by the drive rod via the sub-valve body, and
- wherein the primary valve body and the drive rod are disposed so as to be relatively movable in an axial direction, and the sub-valve body is provided with a spring receiving portion with which one end of the urging member is brought into contact.
4 more elements
Dependencies are inferred from the claim text.