Peterbilt Motors has announced the availability of a Paccar MX-13 engine meeting the California Air Resources Board low nitrogen oxide (NOx) threshold for Models 567, 579, and 589. It aligns with the CARB Omnibus Regulation and features redesigns of internal hardware and the aftertreatment system to effectively reduce NOx emissions. A larger volume aftertreatment system includes an innovative compact twin…
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Through its just-announced Cleaner Trucks Initiative (CTI), the U.S. Environmental Protection Agency aims to further decrease nitrogen oxide (NOx) emissions from on-highway heavy-duty trucks and update a current engine exhaust standard in an early-2020 rulemaking. Set in 2001, the standard culminated in 2010 with a 0.2-gram brake-horsepower-hour NOx threshold for which engine manufacturers deployed selective catalytic reduction (SCR) equipment and urea-based diesel exhaust fluid (DEF). SCR injects DEF into the engine exhaust stream; the ensuing chemical reaction converts NOx into nitrogen, water vapor and traces of carbon dioxide.
Read MoreSources: U.S. Environmental Protection Agency; CP staff
Through its just-announced Cleaner Trucks Initiative (CTI), EPA aims to further decrease nitrogen oxide (NOx) emissions from on-highway heavy-duty trucks and update a current engine exhaust standard in an early-2020 rulemaking. Set in 2001, the standard culminated in 2010 with a 0.2-gram brake-horsepower-hour NOx threshold for which engine manufacturers deployed selective catalytic reduction equipment and urea-based diesel exhaust fluid.
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