| 摘要 |
PURPOSE: A low-noise solenoid valve is provided to suppress the noise of an electronic solenoid valve by absorbing the noise due to the shock of a plunger in two or three stages. CONSTITUTION: A valve body(14) having a fluid inlet(14a) and a fluid outlet(14b) has a seat member fixing part(17) on the inner bottom face. A seat member(16) fixed on the seat member fixing part has a path in the center. A plunger(15) having a steel ball(18) for opening the path of the seat member moved upward and downward depending on the excited state of a solenoid coil(11). An elastic spring(19) installed on the outer face of the seat member absorbs noise when the plunger moves downward. An another elastic spring(20) formed at an upper portion of the plunger secondly absorbs shock when the plunger moves upward.
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