FUEL INJECTOR HAVING BALANCED AND GUIDED PLUNGER
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United States of America Patent
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N/A
Issued Date -
Jan 19, 2012
app pub date -
Jul 15, 2011
filing date -
Jul 15, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A closed nozzle injector for injecting fuel at high pressure into the combustion chamber of an engine, is provided including a lower supply chamber positioned in the nozzle housing, an injector plunger including a lower guide sized to form a close sliding fit with a nozzle housing to guide the plunger during reciprocal movement, and a plurality of restriction orifices formed in the injector plunger and positioned about the injector plunger to restrict fuel flow from an upper supply chamber to the lower supply chamber. The lower guide is positioned axially between the lower supply chamber and the injection orifices.
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