EGR or SCR? OEM picks both to meet regs: Case IH uses a dual-path approach in its tractors to meet 2011 emissions regulations

摘要

At this year's Farm Progress Show in Boone, IA, relatively new terms such as "Tier 4" and "SCR" were being kicked around. They're new in the sense that many equipment users may have only heard rumors about the changes that will be necessary to meet upcoming emissions regulations. They're not new for equipment engineers: at various locations throughout the event, OEMs such as Case IH showed their strategies for meeting the regulations