| 摘要 |
PURPOSE: A valve for controlling a fluid path is provided to minimize impact force generated between a valve and a seat while the valve is closed by gradually charging fluid in each receiving part of a guide pipe and an opening and closing cylinder through a bypass path. CONSTITUTION: A valve for controlling a fluid path comprises a valve body(10), a guide pipe(20), an opening and closing cylinder(30), a bypass path(50), an auxiliary path(60), and a control valve(70). An inlet(12) and an outlet(18) are installed in both ends of the valve body. Multiple through-holes(16) are formed on the outlet. The lower part of the guide pipe is located in the outlet of the valve body. The opened upper part of the guide pipe is protruded in parallel to a path(14) at the center of the valve body. The opening and closing cylinder opens and closes the path of the valve body while moving back and forth with the interaction of an elastic body(40) and fluid pressure. The bypass path is arranged in the outside of the path of the valve body. One side of the auxiliary path is communicated with the bypass path and the other side thereof is connected to a penetrating part(17) formed in one side of the path of the valve body. The control valve controls the fluid flow of the bypass path and auxiliary path.
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