| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an overflow preventing valve for suppressing unnecessary operation due to transitional overflow. <P>SOLUTION: In the overflow preventing valve, a valve element 47 abuts on a valve seat 38 during overflow to shut off a flow path 50. On at least one of the valve element 47 and the valve seat 38, a low-resilience material is provided for securing and shutting off the flow path 50 between the valve element 47 and the valve seat 38. The low-resilience material characteristically secures the flow path 50 between the valve element 47 and the valve seat 38 initially when a flow amount is excessive, and is gradually deformed when the flow amount is continuously excessive to close the flow path 50 between the valve element 47 and the valve seat 38. <P>COPYRIGHT: (C)2007,JPO&INPIT |
