Caterpillar Inc.

Caterpillar Motoren Gmbh & Co. Kg

Juergen Nagel

Ronald Dean Shinogle

William J Rodier

Udo Schlemmer-Kelling

Bert Ritscher

James D Peltier

Alan R Schroeder

The present disclosure provides a control strategy for balancing injector-to-injector fueling variations for a combustion engine having multiple combustion chambers (and cylinders), with multiple individually actuated injectors for injecting fuel into the combustion chambers, wherein at least one injector is assigned to each combustion chamber and a common rail supplies fuel to the multiple injectors. The method includes changing the actuation waveform of an injector assigned to a combustion chamber having an exhaust gas temperature deviating by more than the predetermined value from the average exhaust gas temperature, in order to change the amount of fuel injected.

Exhaust temperature based control strategy for balancing cylinder-to-cylinder fueling variation in a combustion engine

An internal combustion engine is provided that includes a high pressure feed line, and a plurality of fuel injectors fluidly connected to the high pressure feed line, each being operable to inject a fuel into the engine. The engine further includes an electronically controlled flow disabler disposed between the high pressure feed line and each one of the fuel injectors. Each of the flow disablers includes an actuator operable to move a valve member toward a closed position at which the flow disabler blocks a fuel flow to the respective fuel injector.

Electronic flow control valve

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Gettorf, Germany

Juergen Nagel