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    • 6. 发明申请
    • NORMALLY CLOSED SOLENOID VALVE
    • 正常关闭电磁阀
    • US20150041694A1
    • 2015-02-12
    • US14386158
    • 2012-06-12
    • Masaki NanaharaYoshito TanakaKei Sato
    • Masaki NanaharaYoshito TanakaKei Sato
    • F16K31/06
    • F16K31/0658F16K1/523F16K31/0655F16K31/0665
    • A normally closed solenoid valve (100) includes a housing (10), and a valve element (21), a movable core (22), a first spring (23), a second spring (24), a coil (25), a stator core (26), and other components, which are assembled to the housing (10). The valve element (21) is arranged so as to be seatable on and unseatable from a valve seat (12c). The movable core (22) is assembled to a cylinder section (11b) of the housing (10) so as to be movable integrally with the valve element (21) in an axial direction of the movable core (22). The first spring (23) is configured to bias the valve element (21) and the movable core (22) toward the valve seat (12c). The coil (25) and the stator core (26) are configured to generate an electromagnetic force resistive to a load of the first spring (23) for the movable core (22) through energization of the coil (25). The second spring (24) is configured to apply a load smaller than and resistive to the load of the first spring (23) to the valve element (21) and the movable core (22). The normally closed solenoid valve (100) further includes a load adjusting mechanism capable of adjusting the load of the first spring (23), and a stroke adjusting mechanism capable of adjusting an unseating stroke of the valve element (21) from the valve seat (12c).
    • 常闭电磁阀(100)包括壳体(10)和阀元件(21),可动铁芯(22),第一弹簧(23),第二弹簧(24),线圈(25) 定子铁芯(26)和其它部件组装到壳体(10)上。 阀元件(21)被布置成可以从阀座(12c)可靠地固定并且不可靠地安装。 可移动铁心(22)组装到壳体(10)的气缸部分(11b)上,以便在可移动铁心(22)的轴向方向上可与阀元件(21)整体移动。 第一弹簧(23)构造成朝向阀座(12c)偏压阀元件(21)和可动铁芯(22)。 线圈(25)和定子铁心(26)被配置成通过线圈(25)的通电产生抵抗可动铁芯(22)的第一弹簧(23)的负载的电磁力。 第二弹簧(24)被配置为向阀元件(21)和可动铁芯(22)施加小于和抵抗第一弹簧(23)的负载的负载。 常闭电磁阀(100)还包括能够调节第一弹簧(23)的负载的负载调节机构和能够调节阀元件(21)与阀座(21)的转动行程的行程调节机构 12c)。