发明名称 |
COMPRESSED NATURAL GAS FUEL INJECTOR HAVING MAGNETIC POLE FACE FLUX DIRECTOR |
摘要 |
An electromagnetically operable fuel injector for a fuel injection system of an internal combustion engine is disclosed having a ferromagnetic core, a magnetic coil at least partially surrounding the ferromagnetic core and an armature magnetically coupled to the magnetic coil and being movably responsive to the magnetic coil. The armature actuates a valve-closing element, which interacts with a fixed valve seat and is movable away from the fixed valve seat of a fuel valve when the magnetic coil is excited. The armature has a generally elongated shape and a generally central opening for reception of fuel from a fuel inlet connector positioned adjacent thereto. The fuel inlet connector extends in a generally longitudinal direction above the armature and defines a central path for fuel to enter the inlet connector and to be directed toward the armature for further passage toward the fixed valve seat. The fuel inlet connector has a lowermost end portion spaced above the armature to define a working gap through which the armature is movable to open and close the valve. The lowermost end portion of the fuel inlet connector has a transverse cross-sectional dimension corresponding to the transverse dimension of an upper end face of the armature to define a substantially direct magnetic flux path between the armature and the fuel inlet connector.
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申请公布号 |
US2001017326(A1) |
申请公布日期 |
2001.08.30 |
申请号 |
US19990320179 |
申请日期 |
1999.05.26 |
申请人 |
FOCHTMAN JAMES PAUL;WRIGHT DANNY ORLEN |
发明人 |
FOCHTMAN JAMES PAUL;WRIGHT DANNY ORLEN |
分类号 |
F02M21/02;F02M51/06;F02M61/16;(IPC1-7):B05B1/30;F02M51/00 |
主分类号 |
F02M21/02 |
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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