Electromagnetic fuel injection apparatus, an internal combustion engine having an electromagnetic fuel injection apparatus, and a drive circuit of an electromagnetic fuel injection apparatus
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United States of America Patent
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Apr 22, 2003
Issued Date -
N/A
app pub date -
Nov 2, 2001
filing date -
Dec 25, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Using a control coil having a high response characteristic suited to the valve opening and a hold coil suited to a hold to be held a large force by a small large current, during the valve opening time a high voltage is applied to the control coil suited to the valve opening and during a valve opening hold time a low and stabilized voltage is applied to the hold coil suite to the holding, and then a valve body driven. In a fuel injection apparatus, a drive manner during a valve opening time and a hold time is optimized.
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