Control valve

Abstract

A control valve (1), comprising a valve body (10), a valve core (20), a sealing component (41) and a balance sealing block (42). The control valve (1) comprises at least five channels (30). A side wall part (11) is provided with at least five communication ports. The communication ports are in communication with a valve cavity (101). A sealing body part (410) of the sealing component (41) is positioned between the valve core (20) and the side wall part (11). The sealing body part (410) is provided with through holes penetrating through the sealing component (41). In the region of the side wall part (11) that in contact with the sealing body part (410), the number of communication ports is the same as the number of through holes, and the communication ports and the through holes are in communication correspondingly. The balance sealing block (42) is positioned between the side wall part (11) and the valve core (20), and is in contact with the valve core (20). The balance sealing block (42) and the sealing component (41) are arranged on the two sides of the valve core (20) in the radial direction. The surface of the balance sealing block (42) facing the valve core (20) is an arc surface. The axis of the arc surface of the balancing sealing block (42) coincides with the axis of an inner surface of the sealing body part (410), and the radii of the two are equal. The valve core (20) and the side wall part (11) are coaxially arranged. In this way, fluid control of multiple flow paths can be implemented, and the sealing performance of the control valve (1) can also be improved.

Dependencies are inferred from the claim text.