Internal-combustion engines – Charge forming device – Fuel injection system
Reexamination Certificate
2007-07-24
2007-07-24
Moulis, Thomas (Department: 3747)
Internal-combustion engines
Charge forming device
Fuel injection system
C123S456000
Reexamination Certificate
active
10940647
ABSTRACT:
A fuel supplying apparatus of an internal combustion engine includes a first fuel supply system, a second fuel supply system, and a pulsation propagation suppressing unit. The first fuel supply system pressurizes a fuel by a low-pressure pump, and supplies the fuel pressurized by the low-pressure pump to a first fuel injection mechanism. The second fuel supply system is branched from the first fuel supply system, further pressurizes the fuel, pressurized by the low-pressure pump, by a high-pressure pump that is driven according to an operating state of the internal combustion engine, and supplies the fuel pressurized by the high-pressure pump to a second fuel injection mechanism. The pulsation propagation suppressing unit is provided in at least one of the first fuel supply system and the second fuel supply system, and suppresses propagation of a pulsation generated in the high-pressure pump to the first fuel injection mechanism.
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Kojima Susumu
Ohtani Motoki
Moulis Thomas
Toyota Jidosha & Kabushiki Kaisha
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