New Holland announced today its solution to meet the Tier 4 interim emissions standards, which will come into force beginning in 2011. Tier 4 regulations, which will be introduced in two phases, mandate the biggest cut in pollutants released by construction equipment engines to date. Beginning in 2014, with Tier 4 final standards, Particulate Matter (PM) Nitrogen Oxide (NOx) emissions will be reduced by 90% compared to Tier 3.
New Holland’s solution to meet this challenge relies on two technologies: Cooled Exhaust Gas Recirculation (CEGR) and Selective Catalytic Reduction (SCR). The technology solution is determined for each model in the New Holland product line on the basis of the machine’s engineering characteristics, application requirements and lowest operating costs. This approach will provide New Holland customers with the equipment performance and cost-efficiency they need, ensuring a seamless transition to the new standards.
In developing its solution, New Holland benefited from the extensive experience of Fiat Powertrain Technologies (FPT), which pioneered low emission systems and has effectively applied CEGR and SCR technologies in on- and off-highway applications. The technologies have been continually developed and refined, resulting in low operating costs and high productivity with low emissions at a competitive price.
New Holland’s approach enables it to apply to each model in its product line the technology that achieves the best result for the customers. For example, CEGR relies on an exhaust filter system designed for cleaning and regeneration, so it provides performance with exceptional durability and low maintenance costs. SCR, on the other hand, is an after-treatment system that allows the engine to generate maximum power, and the combustion process is optimized, so that it is extremely fuel-efficient.
The introduction of SCR technology as early in the process as 2011 gives New Holland a competitive advantage. By bringing forward its research on this technology, it enables New Holland to focus R&D investments on developing the next generation of construction equipment that will set new standards in cost-efficiency, productivity and performance.
How the systems work: The CEGR system reduces the production of NOx inside the engine by lowering the combustion temperature with a partial exhaust gas recirculation system. The PM levels are reduced by an exhaust filter system.
SCR technology is an after-treatment system that transforms the NOx produced during the combustion process into nitrogen and water, which occur naturally in the atmosphere, through a chemical reaction with a Diesel Exhaust Fluid (DEF). The combustion process is optimized to reduce PM, so that no particulate filter is required.
Use of DEF: The DEF tank on New Holland construction equipment is designed to hold enough additive required for a full tank of fuel. New Holland and its dealer network will sell DEF in a variety of container sizes for maximum customer convenience.