| 摘要 |
To provide a fluid control valve capable of providing appropriate responsiveness of the valve member or capable of compensating for fluid shortage in the case of low fluid pressure, by positively controlling the oscillation condition of the valve member according to such conditions as the temperature or pressure of the fluid. The valve includes a valve body 4 for controlling supply of fluid according to a position of a valve member 41, an electromagnetic driving means 5 for displacing a position of the valve member 41 according to an amount of power supplied thereto, and a controlling means 6 for controlling the power supply amount to the electromagnetic driving means 5 by a duty ratio of a pulse-width modulated signal. The controlling means 6 varies the pulse width modulated signal so as to vary oscillation amplitude of the valve member 41 according to a condition of at least either one of temperature and pressure of the fluid and then outputs such varied pulse width modulated signal to the electromagnetic driving means 5.
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