International Engine Intellectual Property Company, LLC

Garrett Transportation I Inc.

Michael Uchanski

Luis Carlos Cattani

Jeremy Grant Schipper

Dileep Khadilkar

Rogelio Rodriguez

John R Zagone

Daniel Cornelius

Jer Sheng Chen

Rogelio Rodiguez

Jer Shen Jason Chen

Rahul Dev Rajampeta

Shree C Kanchanavally

Eric Kastanis

James R Cigler

Daniel Pachner

Lukas Lansky

A method of setting actuator position of a variable geometry turbine linked to drive a compressor for a compression ignition engine using exhaust gas recirculation. The method includes detecting an engine transient event; determining current mass air flow through the compressor and exhaust temperature; resetting variable geometry turbine position to maximize mass air flow through the compressor; adding the maximum allowable quantity of fuel; determining exhaust temperature increase; adjusting exhaust pressure to allow an increase in mass air flow and exhaust temperature; and returning to the resetting step until a limit is reached.

Control method for variable geometry exhaust turbine

A method is provided for operating an engine to limit soot emissions during fuel-enriched operation. The method includes operating the engine using a first fuel injection pattern and timing to inject fuel into a combustion chamber of the engine. The method further includes receiving a request for an increased engine power output and operating the engine using a second fuel injection pattern and timing to inject more fuel into the combustion in response to the request for the increased power output, where the second fuel injection pattern and timing is configured to minimize soot emissions during enriched fuel operations, such as during transient operations.

Fuel injection pattern and timing

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Chicago, IL, United States of America

Michael Uchanski