High-pressure injection device for an internal combustion engine
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United States of America Patent
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Sep 18, 2018
Grant Date -
Jan 11, 2018
app pub date -
Sep 25, 2017
filing date -
Mar 27, 2015
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Abstract
A high-pressure injection device for an internal combustion engine to which engine segment times are assigned, having a high-pressure pump, a rail connected to the high-pressure pump via a high-pressure fuel line, at least one injector, a digital pressure reduction valve connected to the rail, a fuel return line connected to the pressure reduction valve, and a control unit. The control unit is configured to switch the pressure reduction valve into the transmissive state only in predetermined engine segment times, and to maintain said transmissive state of the pressure reduction valve for a time period which is greater than the duration of one engine segment time.
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