Industry News

Update: Case CE, New Holland and Kobelco Using All The Options

February 25, 2010

Case Construction Equipment, New Holland and Kobelco Construction Machinery America have announced their plans to meet Tier 4 interim and Tier 4 final emissions standards. The companies will use both; cooled exhaust gas recirculation (CEGR) and selective catalytic reduction (SCR) to address Tier 4 interim standards across their product lines. Case CE's portfolio includes more than 90 equipment models, ranging from 15.15 to 532 hp.

Case said the challenge in trying to meet Tier 4 is that the CEGR technology that reduces NOx increases 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 aftertreatment exhaust filter system must be part of a CEGR solution and a diesel exhaust fluid additive must be part of an SCR solution.

The companies said they sees advantages to both technologies, depending on engine size and load and also application demands, and it is taking advantage of the resources available to them as part of the Fiat Group, as well as the strengths of its worldwide strategic partners and suppliers.

Case clarified that it will be using EGR and SCR at Tier 4 interim, determining which technology to use based on the machine type, horsepower range and application. Both technologies will also be used at Tier 4 final and specified in the same manner. New Holland will be following the same process for integrating EGR and SCR into its machines.

The SCR system is designed to be a cool-running, quiet system that’s separate from the main engine function and does not compromise horsepower or torque, Case said. It does not interfere with engine performance and requires the addition of diesel exhaust fluid.

CEGR technology requires no change in the operation of the machines, Case said, as it relies on a diesel particulate filter system to remove PM from the exhaust. This technology is expected to provide improved durability and lower maintenance costs.

Case has developed its SCR and CEGR technologies to ensure that its customers continue to receive the productivity they expect from their Case equipment while complying with Tier 4 interim and eventually Tier 4 final standards. Case said when its machines meet the Tier 4 final standards, they will have achieved a 90% reduction in PM and NOx, compared to Tier 3.

For More Information on Case and Tier 4