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    • 39. 发明授权
    • Solenoid-operated valve
    • 电磁阀
    • US06953186B2
    • 2005-10-11
    • US10777894
    • 2004-02-13
    • Yoshinori KanedaMasaya SegiMikio Suzuki
    • Yoshinori KanedaMasaya SegiMikio Suzuki
    • A61B6/00F16K31/06F16K39/04G06T5/00G06T5/20H04N1/409
    • F16K31/0613F16K39/04
    • Disclosed is a solenoid-operated valve which hardly brings a plunger into a lock and is capable of improving its responsivety. In the solenoid-operated valve, the plunger slidably guided in an inner bore formed in a yoke and a core aligned axially is moved by energizing an electromagnetic coil, and a spool in a valve section is moved through a rod portion which protrudes from an end of the plunger to pass through a center hole of the core. An electromagnetic section fluid chamber defined by a forward end surface of the plunger and the inner bore of the core communicates with an intermediate fluid chamber defined between the core and a valve sleeve, through a clearance between the center hole and rod portion. The spool is provided at one end thereof with a land portion whose end surface defines a part of the intermediate fluid chamber. The diameter of the land portion is chosen to be the same as the diameter of the plunger, so that the sum in volume of the electromagnetic section fluid chamber and the intermediate fluid chamber can be kept invariable regardless of movement of the plunger. A supply/drain passage is further provided to permit the oil around the solenoid-operated valve to be charged into the rear end fluid chamber or discharged therefrom upon movement of the plunger.
    • 公开了一种电磁阀,其几乎不将柱塞带入锁中并且能够提高其响应性。 在电磁阀中,通过激励电磁线圈来驱动形成在磁轭中的内孔中的柱塞和轴向对准的柱塞,通过使阀部分中的阀芯从一端突出的杆部移动 的柱塞通过芯的中心孔。 由柱塞的前端表面和芯的内孔限定的电磁部分流体室通过中心孔和杆部之间的间隙与限定在芯和阀套之间的中间流体室连通。 阀芯在其一端处设置有端部,其端面限定中间流体室的一部分。 地面部分的直径被选择为与柱塞的直径相同,使得电磁截面流体室和中间流体室的体积总和可以保持不变,而与柱塞的移动无关。 进一步设置供应/排出通道以允许电磁阀周围的油被充入后端流体室或者在柱塞移动时从其排出。