Deere + Company

Bryan T Geisick

Danan Dou

Eric J Hruby

Scott R Miles

Michael J Maney

Dustin W Ridenour

Nam Hyo Cho

Ankit Y Patel

James M Krasselt

A power system for a work vehicle is provided and includes an intake arrangement configured to intake charge air; a fuel arrangement including a first fuel tank configured to store a first fuel and a second fuel tank configured to store a second fuel; a compression ignition engine including a plurality of piston-cylinder sets configured to receive, ignite, and combust the first fuel, the second fuel, or a combination of the first and second fuels from the fuel arrangement with the charge air from the intake arrangement to generate mechanical power and exhaust gas; and an exhaust gas recirculation (EGR) arrangement configured to direct a portion of the exhaust gas back into the compression ignition engine. The fuel arrangement is arranged to selectively inject the second fuel into the EGR arrangement.

Work vehicle dual fuel compression ignition power system

A method of treating exhaust gas from an internal combustion engine as the exhaust gas passes through an exhaust gas pathway includes injecting reductant into the exhaust gas pathway with a reductant injector, filtering particulate matter from the exhaust gas with a first treatment element located downstream of the reductant injector, oxidizing soot on the first treatment element with ozone, and converting nitrogen oxides (NOx) from the exhaust gas with a second treatment element located downstream of the reductant injector.

Exhaust gas treatment system with improved low temperature performance

A piston for an internal combustion engine includes a piston bowl. The piston bowl has a half section profile that includes a bowl entry extending radially from the longitudinal piston center axis, a first bowl recess extending radially from the bowl entry and defining a bowl depth and a first radius of curvature, a second bowl recess extending radially from a first bowl recess to an end perimeter surface and defining a second radius of curvature, a bowl lip defined by the first bowl recess and the second bowl recess, and a bowl edge defined by the second bowl recess and the end perimeter surface. The first bowl recess further defines a first bowl recess exit angle at the bowl lip. The second bowl recess further defines a second bowl recess exit angle at the bowl edge.

Internal combustion engine and piston having piston bowl

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Cedar Falls, IA, United States of America

Bryan T Geisick