Cummins releases diesel engine that meets EPA 2010 emission standards
On March 19th, the Mid America Truck Show kicked off in Louisville, Kentucky as planned. Cummins made a strong showing at the event, showcasing its full lineup of medium-horsepower engines—6.7L, 8.3L, and 9L models—as well as heavy-duty diesel engines, including the 11.9L and 15L variants, all designed to meet the strict EPA 2010 emission standards.
The EPA 2010 regulations, which took effect on January 1, 2010, are among the toughest emissions rules globally, comparable to the European Union’s Euro VI standards. These rules drastically cut nitrogen oxide (NOx) and particulate matter (PM) emissions, with NOx limited to just 0.2 mg/hour and PM down to 0.01 mg/hour. Additionally, vehicles with a gross vehicle weight rating over 6,350 kg must now come equipped with an On-Board Diagnostic (OBD) system for real-time monitoring and reporting.
To comply with these stringent requirements, Cummins upgraded its engine platforms based on the EPA 2007 model. The new generation of engines incorporates advanced technologies such as cooled exhaust gas recirculation (CEGR), variable geometry turbochargers (VGT), diesel particulate filters (DPF), and selective catalytic reduction (SCR) systems. These innovations ensure compliance while maintaining performance and efficiency.
According to data from the Cummins Technology Center, the SCR-equipped diesel engines offer a 5% improvement in fuel economy compared to the previous EPA 2007 models and a 9% improvement over competitors using only EGR technology. In today’s challenging freight market, where margins are shrinking, this level of efficiency is vital for fleet operators looking to reduce costs and boost productivity.
In terms of fuel systems, the ISB 6.7L continues to use Bosch high-pressure common rail technology. However, the ISC 8.3L, ISL 9L, ISX 11.9L, and ISX 15L models feature Cummins’ new ultra-high-pressure common rail (UHP) system developed in collaboration with Scania, known as XPIHPCR. This advancement enhances fuel delivery precision and overall engine performance.
Another key innovation in Cummins’ 2010 product line is the shared ECM (Electronic Control Module) platform across both medium- and heavy-duty engines. This standardization not only lowers production costs but also simplifies maintenance and operation for end users, offering greater convenience and reliability.
Overall, Cummins’ latest engines represent a significant step forward in meeting environmental standards without compromising power, durability, or efficiency—making them a smart choice for today’s demanding commercial fleets.
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