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Case I-H ready for new 4-B/Final emissions standards
As of 2010 the Environmental Protection Agency has required reduced emissions from 174 horsepower-and-above nonroad diesel engines. Called “Tier 4” the initial standards reduced particulate matter and nitrous oxide emissions. The final implementation called “Tier 4-B Final” will require an additional reduction of nitrous oxide by 2014.
One of the biggest drawbacks to the new standards was the most common process used to reduce emissions, Exhaust Gas Recirculation (EGR) also led to a substantial loss in power. Case I-H and parent company Fiat Power Technology developed a different process called SCR (Selective Catalytic Reduction). SCR is an engine exhaust aftertreatment that works outside the engine; there are no emissions components on the engines. Leo Bose, Manager of Commercial Training for Case I-H says the process not only reduced emissions but delivers superior horsepower and industry-leading fuel efficiency. Other benefits include a reduced need for oil changes and a cut in fuel consumption compared to previous-generation emissions 
systems. Case IH now has more than 13,000 SCR-only engines at work in North America which have logged more than three million hours in the field.
Bose says the SCR technology will also be used to meet the 4-B level; “our customers are comfortable with the solution and don’t have to switch or add complexity to get emissions controls to the Tier 4 B/Final standards.”
The new technology will be featured at the farm shows this fall and will be on the 2014 model year tractors.
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