Internal-combustion engines – Combustion chamber means having fuel injection only – Using multiple injectors or injections
Reissue Patent
2006-02-16
2008-03-11
Gimie, Mahmoud (Department: 3747)
Internal-combustion engines
Combustion chamber means having fuel injection only
Using multiple injectors or injections
C123S305000
Reissue Patent
active
RE040144
ABSTRACT:
A fuel injection control system and method for delivering multiple fuel injections to a cylinder of an engine during a fuel injection event based upon engine operating conditions, the control system including an electronic controller coupled to an electrically controlled fuel injector, and a plurality of sensors coupled to the controller for inputting certain signals representative of certain engine operating conditions of the engine, the controller being operable to output a fuel injection signal to the fuel injector to deliver a first, a second, and a third fuel shot to the cylinder during a fuel injection event based upon the sensor signals. The controller also delivers each of the multiple fuel injection shots within defined cylinder piston displacement parameters during a particular piston stroke, within defined fuel apportionment limits, and within defined delay limits between each respective fuel shot so as to control exhaust emissions.
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Duffy Kevin P.
Fluga Eric C.
Hafner Gregory G.
McGee Brian G.
Roth Matthew R.
Caterpillar Inc.
Liell & McNeil
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