Multi-fuel injector for an internal combustion engine, method for operating a multi-fuel injector and internal combustion engine
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United States of America
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Feb 25, 2020
Grant Date -
Aug 3, 2017
app pub date -
Apr 13, 2017
filing date -
Apr 13, 2017
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Abstract
In a multi-fuel injector for an internal combustion engine, including a housing with a nozzle needle movably disposed therein between a closed position in which the nozzle needle blocks a discharge of fuel from a collection chamber, to which a first fuel is supplied, above the nozzle needle, a control chamber is arranged to which a high pressure second fuel is supplied which acts on the nozzle needle to bias it into a closed position, and a control valve is provided in a pressure release line extending from the control chamber for a controlled release of the second fuel from the control chamber by opening the control valve so as to relief the closing pressure on the nozzle needle in order to permit lifting of the nozzle needle from the closed position for discharging the fuel from the collection chamber.
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