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    • 5. 发明申请
    • ELECTROMAGNETIC VALVE DEVICE FOR HIGH-PRESSURE FLUID
    • 用于高压流体的电磁阀装置
    • US20140158921A1
    • 2014-06-12
    • US14090447
    • 2013-11-26
    • DENSO CORPORATION
    • Ryo ISHIBASHIAkira Takagi
    • F16K31/02
    • F02M21/0239F02D19/022F02M21/0233F16K31/0655F16K31/0675F16K39/024H01F2007/085Y02T10/32
    • A guide portion slidably receiving a movable core is constructed by a medium-diameter portion, a first small-diameter portion, and a second small-diameter portion. A magnetism blocking portion is provided between the first small-diameter portion and the second small-diameter portion. A ring portion is provided at a periphery of the medium-diameter portion, and abuts on a yoke. When a coil is energized, a magnetic circuit is generated to pass through the yoke, the medium-diameter portion, the first small-diameter portion, the movable core, and the second small-diameter portion, and to bypass the magnetism blocking portion. In addition, another magnetic circuit passing through the ring portion is also generated. A magnetic attractive force inclining with a center axis of the guide portion is generated between the second small-diameter portion and an end surface according to an expansion magnetic circuit, and the movable core is moved towards the stator core.
    • 可滑动地容纳可动芯的引导部分由中直径部分,第一小直径部分和第二小直径部分构成。 在第一小直径部分和第二小直径部分之间设置磁阻部分。 环形部分设置在中直径部分的周边处,并且邻接轭。 当线圈通电时,产生磁路以通过磁轭,中直径部分,第一小直径部分,可动磁芯和第二小直径部分,并绕过磁阻部分。 此外,还产生通过环形部分的另一个磁路。 根据膨胀磁路,在第二小直径部和端面之间产生与引导部的中心轴倾斜的磁性吸引力,并且可动芯向定子芯移动。