John Deere Power Systems last week exhibited its PowerTech PSS 9.0L Final Tier 4/Stage IV diesel engine featuring the Integrated Emissions Control system at Intermat 2012 in Paris.
As announced on March 2, John Deere will continue with its planned building-block approach to meet the challenging Final Tier 4/Stage IV regulations. To achieve compliance, John Deere developed the Integrated Emissions Control system — a solution that optimizes engine performance, operating efficiency and reliability.
For engines 75 hp and above, the Integrated Emissions Control system will consist of a diesel oxidation catalyst, a diesel particulate filter and a selective catalytic reduction system specifically designed to meet the demands of off-highway applications. The DOC/DPF exhaust filter reduces PM while cooled EGR and the optimized SCR system reduces NOx to the regulatory levels of Final Tier 4/Stage IV.
“From the onset of emissions regulations, John Deere has focused on incorporating emissions-reduction technologies that meet applicable regulations while maintaining or improving performance,” said John Piasecki, director of worldwide marketing, sales and customer support for John Deere Power Systems. “SCR is an appropriate technology building block for Final Tier 4/Stage IV, now that it is more mature for off-highway applications, the DEF supply chain infrastructure is better developed, and John Deere has optimized the performance of our SCR system.
“We’re committed to using the right combination of technology building blocks to meet increasingly stringent emissions regulations and customer expectations,” Piasecki said. “This building-block approach led to the Integrated Emissions Control system and an optimized Final Tier 4/Stage IV technology solution that we’re confident will deliver emissions compliance without sacrificing power, performance, ease of operation, fluid efficiency, reliability, durability or economical operating cost.”
For more information on the John Deere Final Tier 4/Stage IV engine technology, visit www.JohnDeere.com/tier4. For regularly updated insights on emissions developments and other related resources, visit the John Deere Emissions Hub blog at www.johndeereemissionshub.com.
Deere & Co. is headquartered in Moline, Ill.