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    • 1. 发明授权
    • Electromagnetic valve
    • 电磁阀
    • US07017601B2
    • 2006-03-28
    • US10459510
    • 2003-06-12
    • Hidehiro SogaKenji NakaoKouichi OjimaYuji Bando
    • Hidehiro SogaKenji NakaoKouichi OjimaYuji Bando
    • F16K49/00
    • F15B13/044Y10T137/6552Y10T137/87217
    • An electromagnetic valve of a reduced size capable of suppressing temperature rise of a coil regardless of continuous electrical energization over an extended time while preventing attracting force from lowering includes a coil cooling fluid passage (9a; 8a; 4a) for communicating a coil cooling fluid sump space (2a) with a controlled pressure region for allowing a fluid to flow into the coil cooling fluid sump space (2a) from the controlled pressure region. The coil cooling fluid passage includes a small-diameter communicating passage portion (9a) provided so as not to exert influence to a hydraulic pressure prevailing in the controlled pressure region.
    • 一种减小尺寸的电磁阀,不管延长时间内的持续电通电,同时防止吸引力降低,都能够抑制线圈的温度上升,包括:线圈冷却流体通道(9a; 8a; 7a),用于使线圈 具有受控压力区域的冷却液体贮槽空间(2a),用于允许流体从受控压力区域流入线圈冷却液体贮槽空间(2a)。 线圈冷却流体通道包括设置成不对受控压力区域中存在的液压产生影响的小直径连通通道部分(9a)。
    • 2. 发明授权
    • Electromagnetic valve
    • 电磁阀
    • US06874751B2
    • 2005-04-05
    • US10443868
    • 2003-05-23
    • Kouichi OjimaKenji NakaoHidehiro Soga
    • Kouichi OjimaKenji NakaoHidehiro Soga
    • F16K31/06G05D16/20F02M59/96F02M63/00F16K31/02
    • F16K31/0637G05D16/2013
    • An electromagnetic valve (100) which can ensure a predetermined response behavior while sustaining a desired control performance with operation noise being suppressed even after operation over an extended time includes a plunger assembly (15) having a plunger (7), a coil (2) for driving the plunger (7), a fixed core (4) disposed in a direction in which the plunger (7) is displaced for attracting the plunger assembly (15) to a retracted position upon electrical energization of the coil (2) to thereby hold the plunger at that position, a resilient member (8) disposed, being compressed, between the plunger (7) and the fixed core (4) to resiliently urge the plunger assembly (15) to an advanced position, and a spacer (9; 39) interposed between the plunger (7) and the fixed core (4). The spacer (9; 29; 39; 49) is provided with a protrusion (9a; 29a).
    • 一种电磁阀(100),其能够在维持期望的控制性能的同时确保预定的响应行为,即使在延长的时间内操作之后也抑制了操作噪声,包括具有柱塞(7),线圈(2)的柱塞组件(15) 为了驱动所述柱塞(7),在所述线圈(2)的电通电时沿着所述柱塞(7)移动的方向设置以将所述柱塞组件(15)吸引到缩回位置的固定铁心(4) 将所述柱塞保持在所述位置,弹性构件(8)被设置成在所述柱塞(7)和所述固定芯体(4)之间被压缩,以将所述柱塞组件(15)弹性地推动到前进位置,以及间隔件 ; 39)插入在所述柱塞(7)和所述固定芯(4)之间。 间隔件(9; 29; 39; 49)设置有突起(9a; 29a)。