METHOD TO OPERATE A DUAL-NOZZLE FUEL INJECTOR
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United States of America Patent
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Issued Date -
Sep 3, 2015
app pub date -
Apr 30, 2015
filing date -
Apr 30, 2015
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Abandoned
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Abstract
A method to operate a dual-nozzle fuel injector is provided. The dual-nozzle fuel injector includes a first control valve, a second control valve, a first control chamber, a second control chamber, a drain, a first needle check, a second needle check, a first nozzle outlet, a second nozzle outlet, and a dual solenoid actuator. The dual solenoid actuator selectively actuates the first control valve and the second control valve to connect the first control chamber and the second control chamber, respectively, to the drain. Flow of a liquid fuel from the first control chamber and the second control chamber, respectively, lifts the first needle check and the second needle check. The first needle check lifts to deliver a first pre-determined amount of the liquid fuel into the cylinder. The second needle check lifts to deliver a second pre-determined amount of the liquid fuel into the cylinder.
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