Solenoid controlled valve
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United States of America Patent
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Jun 8, 2004
Grant Date -
May 8, 2003
app pub date -
Nov 19, 2002
filing date -
Sep 23, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a solenoid-controlled valve assembly a biasing means (21) is adapted to apply a resisting force to a spool (22) in a direction opposite to the direction substantially of a force applied by an armature (14), and engagement between at least one of the spool and the biasing means and the spool and the armature is through an engagement means defining a single point of contact. The spool (22) may be provided with at least one land adapted to connect and disconnect two flow passages (6, 8), and the first ends of the two passages are spaced apart in a direction parallel to the axis of the bore by a smaller distance than the spacing between the second ends of the passages.
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