Case prepare for new emissions requirements

Case Construction Equipment have announced that they are ready to meet the next two phases of emissions requirements.

Tier 4 interim standards begin in 2011, and Tier 4 final standards come into effect beginning in 2014. Case are using two distinct technologies, cooled exhaust gas recirculation (CEGR) and selective catalytic reduction (SCR) to address Tier 4 interim standards across their product line.

The challenge in trying to meet Tier 4 standards—interim and final—is that the CEGR technology that reduces nitrogen oxides (NOx) increases particulate matter (PM) levels, while the SCR technology that reduces PM levels increases NOx levels. In order to meet the ultimate goal of near-zero emissions, an after-treatment exhaust filter system must be part of a CEGR solution, and a diesel exhaust fluid additive must be part of an SCR solution.

Case see advantages to both technologies depending on engine size and load and also application demands, and they are taking advantage of the resources available to them as part of the Fiat Group, as well as the strengths of their worldwide strategic partners and suppliers.

When Case machines meet Tier 4 final standards, they will have achieved a 90-percent reduction in particulate matter and nitrogen oxides, compared to Tier 3.