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    • 9. 发明授权
    • Valves capable of controlling valve-opening area
    • 能够控制阀门开启面积的阀门
    • US08506692B2
    • 2013-08-13
    • US13118653
    • 2011-05-31
    • Masahiro Sugiura
    • Masahiro Sugiura
    • F16K31/06F02M25/08
    • F02M25/0836G05D16/2013Y10T137/7837Y10T137/86936Y10T137/86944Y10T137/86984
    • A valve includes a valve housing defining therein a fluid passage composed of a first passage and a second passage, a first valve member configured to open and close the fluid passage, a first biasing member pressing the first valve member in a first valve-closing direction along a flow direction from the first passage to the second passage, a second valve member configured to open and close the fluid passage, a second biasing member pressing the second valve member in a second valve-closing direction along the flow direction from the first passage to the second passage, an electromagnetic driving member having an pressing member opening the first valve member and the second valve member in stages, a third valve member configured to open and close the fluid passage, and a third biasing member pressing the third valve member in a third valve-closing direction along a flow direction from the second passage to the first passage. The third valve member is configured to open the fluid passage when internal pressure of the first passage is higher than internal pressure of the second passage by a predetermined value.
    • 阀包括阀壳体,其中限定有由第一通道和第二通道组成的流体通道,构造成打开和关闭流体通道的第一阀构件;第一偏压构件,其按第一阀门关闭方向按压第一阀构件 沿着从所述第一通道到所述第二通道的流动方向,构造成打开和关闭所述流体通道的第二阀构件;第二偏压构件,沿着所述流动方向从所述第一通道按第二阀门关闭方向按压所述第二阀构件; 在第二通道中,具有分段地打开第一阀构件和第二阀构件的按压构件的电磁驱动构件,构造成打开和关闭流体通道的第三阀构件,以及将第三阀构件按压在第三阀构件中的第三施力构件 沿着从第二通道到第一通道的流动方向的第三阀关闭方向。 第三阀构件构造成当第一通道的内部压力高于第二通道的内部压力达预定值时打开流体通道。