Diesel engine fuel injection system
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United States of America Patent
Stats
-
May 7, 1991
Grant Date -
N/A
app pub date -
Mar 8, 1990
filing date -
Mar 8, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The diesel internal combustion engine fuel injection system includes an accumulator nozzle having its opening pressure close to its closing pressure so as to provide a high turn down ratio without excessive maximum charging pressure. The accumulator nozzle may include a displacement piston which is used to lower the charging pressure by a fixed amount after the injection of fuel into the engine cylinder commences. Alternatively, the accumulator nozzle may include a small moveable piston which serves to raise the closing pressure after the injection of fuel into the engine cylinder commences.
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