Internal-combustion engines – Charge forming device – Fuel injection system
Reexamination Certificate
2007-04-10
2007-04-10
Miller, Carl S. (Department: 3747)
Internal-combustion engines
Charge forming device
Fuel injection system
C123S447000, C123S514000
Reexamination Certificate
active
10217634
ABSTRACT:
An internal combustion engine (30) has a fueling system comprising fuel injectors (36) that utilize oil under pressure to force fuel into engine combustion chambers. Oil is pumped to an oil rail (44) by an engine-driven pump (42) whose effective displacement can be varied. A control system (32) processes certain data, such as engine speed and load, for controlling the effective displacement of the pump. The pump has a larger stage (42B) and a smaller stage (42A). The control system selects and de-selects the stages to control pump displacement.
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Bernhardt John E.
Ciesla Christopher R.
Calfa Jeffrey P.
International Engine Intellectual Property Company LLC
Lukasik Susan L.
Miller Carl S.
Soupos Elias P.
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