Internal combustion engine fuel pressure control apparatus

Details Internal combustion engine fuel pressure control apparatus Internal combustion engine fuel pressure control apparatus

2006-06-27

2006-06-27

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C123S456000, C123S447000

Reexamination Certificate

active

07066149

ABSTRACT:
An internal combustion engine fuel pressure control apparatus includes: fuel pressure control means including a spill valve and a high-pressure fuel pump that pressure-feeds fuel to an accumulation chamber; and control means that calculates a control quantity of the fuel pressure control means on the basis of pressure information of fuel supplied to an injector and variably sets the pressure of the fuel supplied to the injector, wherein the control quantity calculated by the control means is configured by a first feedback quantity that feeds back the fuel quantity that the high-pressure fuel pump pressure-feeds to the accumulation chamber and a second feedback quantity that feeds back the timing at which the spill valve opens or closes a fuel relief path.

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