Internal-combustion engines – Charge forming device – With fuel pump
Reexamination Certificate
2007-04-10
2007-04-10
Miller, Carl S. (Department: 3747)
Internal-combustion engines
Charge forming device
With fuel pump
C123S500000, C123S456000
Reexamination Certificate
active
11498732
ABSTRACT:
In an energy-saving high-pressure fuel supply control device for sucking a low-pressure fuel via a flow rate control valve and supplying high-pressure fuel acquired by pressurizing the sucked fuel to a fuel rail, at a time point that is logically decided from a bottom dead center and at which the pressure of the high-pressure fuel rises to a pressure to hold closing of the flow rate control valve, energization of the flow rate control valve is ended to restrain energization energy to the flow rate control valve. The time point when the energization of the flow rate control valve is ended is deviated toward lag side in advance by a time that causes deviation of the bottom dead center of the plunger toward the lag side from the original bottom dead center.
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Miller Carl S.
Mitsubishi Electric Corporation
Sughrue & Mion, PLLC
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