发明名称 Electromagnetic actuator
摘要 In a solenoid portion of a solenoid valve, a fixed core for axially attracting a plunger due to magnetic force generated by a magnetic coil is divided into two. One is a cylindrical yoke having an opening at an axial end and a bottom at the other axial end. The other one is a cylindrical stator core having a flange protruding radially outwardly at an axial end thereof. The bottom of the yoke is provided with a thick body portion having a center recess. The inner surface of the opening of the yoke is fitted to an outer surface of the flange and the inner surface of the recess of the thick body portion is fitted to an outer surface of the stator core. Accordingly, constructions of molding dies for manufacturing the yoke and the stator core are simple. Further, only limited surfaces of the yoke and the stator core, which are fitted to each other, need accurate dimensions so that magnetic gap is minimized.
申请公布号 US6501359(B2) 申请公布日期 2002.12.31
申请号 US20010948568 申请日期 2001.09.10
申请人 DENSO CORPORATION 发明人 MATSUSAKA NOBORU;SATO HIDEYUKI
分类号 F16K31/06;H01F7/123;H01F7/16;(IPC1-7):H01F7/00 主分类号 F16K31/06
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