发明名称 |
PROTECTED POWDER METAL STATOR CORE AND SOLENOID ACTUATOR USING SAME |
摘要 |
A solenoid actuator includes a stator assembly with a stator core of formed powder metal received in a stator housing. A ferromagnetic protective sleeve is in contact with and covers a majority of an inner end face and a cylindrical wall of the stator core, while a flux ring is in contact with and covers an outer end face of the stator core. An armature assembly includes an armature attached to a stem that is movable in an air gap relative to the ferromagnetic protective sleeve. A spring is operably positioned in the ferromagnetic protective sleeve but electrically isolated from the stator housing. The stator core is encapsulated to protect against erosion and fragmentation. A magnetic flux line around a solenoid coil passes through the stator core, the ferromagnetic protective sleeve, the armature, the flux ring and back to the stator core.
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申请公布号 |
US2013113583(A1) |
申请公布日期 |
2013.05.09 |
申请号 |
US201113292163 |
申请日期 |
2011.11.09 |
申请人 |
VENKATARAGHAVAN JAYARAMAN K.;SHEIKH SABOOR;IBRAHIM DANIEL RICHARD;LONG MICHAEL C.;BUNNI NADEEM N.;CATERPILLAR, INC. |
发明人 |
VENKATARAGHAVAN JAYARAMAN K.;SHEIKH SABOOR;IBRAHIM DANIEL RICHARD;LONG MICHAEL C.;BUNNI NADEEM N. |
分类号 |
H01F7/128;H02K15/00 |
主分类号 |
H01F7/128 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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