Rapid response solenoid for electromagnetic operated valve
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United States of America Patent
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N/A
Issued Date -
Feb 9, 2006
app pub date -
Jul 27, 2005
filing date -
Aug 6, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A solenoid for an electromagnetically operated valve includes a bobbin having a substantially rectangular or elliptical cross section, a pole plate stationary with respect to the bobbin, and an armature slidable within the bobbin in response to a magnetic field generated by the coil through the pole plate. A coil wound around the bobbin has a rectangular cross section which on a short axis side includes a width W. A relation between width W and a virtual cylindrical iron core of diameter D having the same cross sectional area as an armature cross sectional area is expressed as D=(0.4 to 0.8) W. A ratio of a length A of a long axis side of the armature to a length B of a short axis side of the armature has a range between 3.1.ltoreq.(A/B).ltoreq.4.5.
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