Fuel injection device for an internal combustion engine, and associated method
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United States of America Patent
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Apr 19, 2016
Grant Date -
Jan 13, 2011
app pub date -
Jan 12, 2009
filing date -
Jan 14, 2008
priority date (Note) -
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Abstract
A fuel injection device and associated method are provided. An injector body defines an axial bore and has a nozzle exit extending into the combustion chamber. The injector body receives fuel within the bore and channels the fuel through the nozzle exit into the combustion chamber. A flow rate control member is movably disposed within the injector body bore and is actuatable by a first actuator to move with respect to and to interact with the nozzle exit to control a flow rate of the channeled fuel. A pintle member is movably disposed within a flow rate control member bore and is actuatable by a second actuator, independently of the flow rate control member, to move with respect to the flow rate control member and to interact with the nozzle exit to control a spray angle of the channeled fuel. The flow rate and spray angle are thereby independently controllable.
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