Deere Unveils Next Generation Diesel & Aftertreatment

John Deere Power Systems (JDPS) is unveiling a new 13.6 L diesel engine, the first of what the Waterloo, Ia. manufacturer is calling its next generation of engines.  At the same time JDPS is using the stage provided by ConExpo-Con/Agg to introduce its newest Integrated Emissions Control (IEC) system configuration configured with an inline aftertreatment device.  JDPS is in booth S83816.

The new 13.6 L engine will be manufactured at the John Deere Engine Works plant in Waterloo, with production planned to begin in 2020.

John Deere developed the 13.6 L engine to meet the needs of both its internal applications and global OEMs. “Our engineers developed the new 13.6 L engine to meet the power and packaging needs for a wide array of heavy-duty applications,” said John Piasecki, director of marketing, sales and customer support for John Deere Power Systems.

“John Deere dedicated extensive internal resources to the clean-sheet design of this engine to provide our customers with a power solution that surpasses standards in reliability and durability,” added Piasecki.

Equipped with an integrated high-pressure common-rail fuel system, JDPS said the 13.6 L engine offers an reduction in diesel fuel consumption at rated speed. In addition, diesel exhaust fluid (DEF) consumption has been reduced through design enhancements that improved the combustion process.

Piasecki said it was a goal to increase the power of the 13.6 L engine, but not the size, to offer a simpler, more compact package.

The 13.6 L engine offers a maximum variable speed power rating over 684 hp (500 kW)  and employs the same proven technologies as other engines in the John Deere lineup, particularly full-authority electronic controls, cooled exhaust gas recirculation (EGR) and a high-pressure common-rail fuel system (injection pressures of which have not yet been announced).

Single and dual turbocharger configurations were incorporated to offer OEM customers improved packaging and greater application flexibility. “These technologies are the key to our ability to meet emission requirements and still live up to our customers’ power and packaging expectations,” said Piasecki.

Equipped with a rear gear train, the 13.6 L diesel offers a reduction in noise compared to previous models and offers full power from the front and rear of the engine while providing the capability to add more pumps with an integrated power take-off (PTO). It comes with multiple aux drive connections and is available in single- and dual-turbo configurations to maximize packaging flexibility.

Cost and ease of maintenance are also design considerations JDPS said, enhanced with improvements in service cost and hours between servicing intervals. The 13.6 L engine was designed with hydraulic lash adjusters (HLA) to offer optimum valve train performance, less noise and lower wear, while all but eliminating valve lash maintenance.

John Deere plans to offer two Integrated Emissions Control (IEC) system sizes for the 13.6 L engine, which can be mounted horizontally or vertically, for greater packaging and integration flexibility to OEM customers  John Deere plans to offer future Integrated Emissions Control system configurations for the engine to help OEM customers meet different levels of global emissions standards.

The new IEC system configuration will also be shown at ConExpo-Con/Agg.  “As we review the specific application needs of our internal partners and OEM customers alike, we continuously look for strategies that help improve application integration,” said Piasecki. “Our ability to tailor the configuration of our Integrated Emissions Control system allows us to accommodate increasingly complex packaging requirements while meeting the expanding complexity in world emissions standards.”

The new John Deere Integrated Emissions Control system uses an inline aftertreatment device that contains a diesel particulate filter (DPF), diesel oxidation catalyst (DOC) and selective catalytic reduction (SCR) system, achieving Tier 4 final and Stage 5 emission levels.

As mentioned, Deere initially plans to offer the system in two sizes for the new 13.6 L engine and is designed to be mounted either horizontally or vertically.  “Application integration was a fundamental driver for the development of an inline aftertreatment device for use in our Integrated Emissions Control system configurations. The device’s scalable design will benefit our internal John Deere partners, as well as our OEM customers, by offering them a streamlined solution in a more compact package,” said Piasecki.

John Deere designed its inline aftertreatment device with an enhanced diesel exhaust fluid (DEF) management system. In addition, enhanced interface points ease application integration and reduce leak paths, connection points and heat loss, providing more robust aftertreatment performance.

All John Deere Integrated Emissions Control systems are exclusively designed to meet the specific demands of off-highway applications in the given power categories. With multiple configurations now available, John Deere has made it a goal to improve overall packaging and offer various packaging options for the Integrated Emissions Control system.