General Electric Company

Vince Dunsworth

Robert Douglas Cryer

James Michael Kostrubanic

Rocco Volpe, Jr

Cecil M Daniel

Laurence Richard Handler

Ajith Kuttannair Kuma

Dario Patricio Escobar

Ajith Kuttannair Kumar

Eric Richard Dillen

Michael Shawn Gallagher

A system for detecting conditions indicative of substandard performance of cylinders in an internal combustion engine includes an engine control unit disposed in operable communication with the engine and a computer disposed in informational communication with the engine control unit. A method for utilizing the system includes comparing fuel requirements of the engine operating under power of all cylinders and under the successive arrest of each of the cylinders or sets of cylinders. The process is repeated until each cylinder or set of cylinders is arrested and all of the data can be compiled and considered to determine the performance of each cylinder or set of cylinders. The system measures the required fuel with all cylinders operating and enables a recommendation to be made with respect to corrective or maintenance measures that should be undertaken with respect to the isolation of the individual cylinder(s) which may be determined to be weak or non-functioning.

System and process for detection of weak or non-functioning cylinders in engines

A method for controlling start of a compression ignition engine having a plurality of cylinders is provided without a cam sensor is provided. Each cylinder includes a respective piston reciprocally movable between respective top and bottom positions along a cylinder longitudinal axis. The method comprises proving a respective fuel delivery assembly for each cylinder. In one embodiment the method further comprises retrieving from memory a set of fuel delivery assembly firing rules and then processing the firing rules so that a firing signal is delivered to each fuel delivery assembly on every crank revolution during a cranking mode of operation. The fuel delivery assembly is arranged to be responsive to any firing signal received during an injection window leading to the top position along the longitudinal axis so as to supply fuel to each cylinder during the injection window. The fuel delivery assembly is further arranged to be insensitive to any firing signal received during an exhaust stroke leading to the top position along said longitudinal axis so that no fuel is delivered to each cylinder during that exhaust stroke.

Cam sensor elimination in large four stroke compression-ignition engines

A system for detecting conditions indicative of substandard performance of cylinders in a diesel engine includes an engine control unit disposed in operable communication with the engine and a computer disposed in informational communication with the engine control unit. The engine control unit is in operable communication with the engine through a communication element. The system measures the required fuel with all cylinders operating and enables a recommendation to be made with respect to corrective or maintenance measures that should be undertaken with respect to the cylinder. A method for utilizing the system includes comparing fuel requirements of the engine operating under power of all cylinders and under the successive arrest of each of the cylinders. The process is repeated until each cylinder is individually removed and all of the data can be compiled and considered to determine the performance of each individual cylinder.

System and process for detection of weak cylinders in a diesel engine

A system and method for controlling fuel injection timing in an engine operable in a selected one of a plurality of engine notch positions are provided. The system includes a module for determining whether a fuel value indicative of a fuel quantity to be delivered to the engine is within a predetermined fuel value range for the selected one of the plurality of notches. The system further includes a module for setting a predetermined fuel injection timing value that uniquely corresponds to the selected one of the plurality of notches upon verification that the fuel value is within the predetermined fuel value range.

Method and system for controlling fuel injection timing in an engine for powering a locomotive

A system and method for controlling operation of an engine during a bog condition is provided. The method allows for monitoring values of a commanded engine RPM signal and of an actual engine RPM signal. The method further allows for determining whether the difference between respective values of the commanded engine RPM signal and the actual engine RPM signal exceeds a predetermined threshold RPM value. An inflection determining step allows for continuing to monitor values of the actual engine RPM signal to determine an inflection RPM point. A varying step allows for controllably varying the commanded engine RPM signal from a predetermined point about the inflection RPM point towards a desired commanded speed value.

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Edinboro, PA, United States of America

Vince Dunsworth