System and method to control spool stroke motion
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United States of America Patent
Stats
-
May 15, 2007
Grant Date -
Apr 27, 2006
app pub date -
Oct 21, 2004
filing date -
Oct 21, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An oil activated fuel injector which provides a pilot quantity of fuel prior to the main fuel injection event. A control system for a fuel injector includes a sensor for providing a signal to a control which is indicative of an opening motion of a spool. The control initiates a pull back of the spool, upon receipt of the signal, to eliminate a bounce back phenomenon of the spool during an injection of a pilot quantity of fuel. The signal may be representative of a pressure of working fluid or fuel, as well as a position or acceleration of the spool.
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