Solenoid and pump using the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Issued Date -
Oct 11, 2007
app pub date -
Apr 5, 2007
filing date -
Apr 6, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The solenoid is capable of generating great thrust and having broad-ranging thrust characteristics. The solenoid of the present invention comprises: a guide pipe formed into a cylindrical shape and provided inside of an excitation coil; a movable element having a small diameter section and a large diameter section; a first yoke part covering one end face of the excitation coil, the first yoke part having a first facing surface, which faces an outer circumferential face of the small diameter section of the movable element, and a second facing surface, which faces one end face of the small diameter section; and a second yoke part covering the other end face of the excitation coil, the second yoke part having a third facing surface, which faces an outer circumferential face of the large diameter section of the movable element, and a fourth facing surface, which faces one end face of the large diameter section.
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