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    • 10. 发明授权
    • Fuel injection valve
    • 燃油喷射阀
    • US07201330B2
    • 2007-04-10
    • US10961154
    • 2004-10-12
    • Takayuki KobayashiHideo Kato
    • Takayuki KobayashiHideo Kato
    • F02M39/00F02M59/00F02M61/10F02M61/00B05B1/30
    • F02M51/0667F02M51/0682F02M61/168
    • A fuel injection valve has: a tubular body, a valve seat member, a valve body, a core tube, a bias spring, and an electromagnetic actuator. The core tube is press fitted into the tubular body. The core tube has a first end side opposing an absorption section of the valve body in such a manner as to form an axial gap interposed between the first end side of the core tube and the absorption section. The core tube has a second end side axially extending in the tubular body to a certain position on a way to the second end side of the tubular body. The axially extending second end side of the core tube has an outer periphery which is formed with a reduced diameter section for increasing an accuracy in positioning the core tube when the core tube is press fitted into the tubular body.
    • 燃料喷射阀具有:管状体,阀座构件,阀体,芯管,偏置弹簧和电磁致动器。 芯管被压配合到管状体中。 芯管具有与阀体的吸收部相对的第一端侧,以形成插入在芯管的第一端侧与吸收部之间的轴向间隙。 芯管具有在管状体中轴向延伸到通向管状体的第二端侧的途中的特定位置的第二端侧。 芯管的轴向延伸的第二端侧具有外周,该外周形成有直径减小的部分,用于当芯管压配合到管状体中时,提高芯管的定位精度。