As discussed here last month, John Deere tailors Integrated Emissions Control system technology configurations to meet customer needs and emissions regulations in each power range. We continued this planned “building block” approach by introducing the no-DPF PowerTech PWL 4.5L Final Tier 4/Stage IV engine this month at Bauma 2013 in Munich. The 63 to 104 kW (85 to 140 hp) engine will meet Final Tier 4/Stage IV regulations without a DPF — reducing cost and improving engine packaging while meeting customer performance expectations for applications in the power segment.
The PowerTech PWL 4.5L complements the previously announced John Deere Final Tier 4/Stage IV lineup of engines rated 36 to 448 kW (48 to 600 hp). The engine is equipped with an Integrated Emissions Control system consisting of SCR, a DOC and cooled EGR. Elimination of the DPF was enabled through combustion system optimization and improvements in SCR system conversion efficiency. We believe the no-DPF technology solution will serve OEMs and end users well in the 56 to 104 kW (75 to 140 hp) power category, balancing packaging and product cost considerations with performance and operating cost requirements.
The announcement of the PowerTech PWL 4.5L engine represents the third Integrated Emissions Control system configuration John Deere will offer for Final Tier 4/Stage IV. In the 36 to 55 kW (48 to 74 hp) power range, we will offer models using a DOC/DPF without cooled EGR or SCR. Engine models in the 104 kW (140 hp) and above power range will feature an Integrated Emissions Control system consisting of cooled EGR, a DOC/DPF and SCR. All of our Integrated Emissions Control systems are exclusively designed to meet the specific demands of off-highway applications in the given power categories.
We are confident that all of our Final Tier 4/Stage IV solutions will deliver industry-leading performance and value while meeting required long-term emissions compliance. Through our tailored building block approach we have adopted the best available technologies to meet Final Tier 4/Stage IV regulations and customer needs in each power category. We expect emissions technologies will continue to evolve and improve, and we will adopt those changes when available to improve the customer experience.