Cummins Confident Of Meeting 2010 Emissions Standards

Cummins, Inc., plans to use enhanced versions of its proven 2007 technological solutions for on-highway engines to meet the more stringent, 2010 near-zero EPA emissions standards, company officials said.

The manufacturer expects to be able to maintain power and torque with comparable fuel economy and maintenance intervals.

Key ingredients of the Cummins 2010 heavy-duty lineup include:

  • Reduction of oxides of nitrogen (NOx) will be achieved by integrated technology comprised of the XPI high-pressure common rail (HPCR) fuel system, next-generation cooled exhaust gas recirculation (EGR), advanced electronic controls, proven air handling and the Cummins particulate filter.
  • Expansion of the heavy-duty X platform in North America to three displacements with the introduction of an 11.9-liter engine and a 16-liter engine to complement the flagship 15-liter product. The engines will share a common architecture including the XPI HPCR fuel system.
The company said the expansion marks the first time in nearly 20 years that it has had a common architecture across its industry-leading Heavy-Duty products.

“Having the ability to meet a broader range of customer needs with an expanded product line using Cummins proven technology is our formula for success in 2010 and beyond,” said Ed Pence, vice president and general manager of Cummins heavy-duty engine business.

Dr. Steve Charlton, Cummins executive director of heavy-duty engineering, said: “Designing and producing the best-in-class heavy-duty diesel requires expertise in combustion, air handling, fuel systems, electronic controls and exhaust after-treatment.”

The next-generation cooled EGR is key to reducing emissions and oxides of nitrogen, according to the company. EGR technology will not add complexity to the vehicle, it said, and power, torque, fuel economy and maintenance intervals will stay the same.

The manufacturer said it will continue to use its proven variable geometry turbocharger (VG Turbo), which bolsters total engine performance from power output to response to superior engine braking, while working in tandem with the cooled-EGR subsystem.

The Cummins particulate filter, designed and manufactured by Cummins Emission Solutions and introduced in 2007, will be the only after-treatment required for heavy-duty engines in 2010, according to the company.

Cummins will enhance its mid-range on-highway product performance and reliability by adding selective catalytic reduction (SCR) to its existing product to meet the near-zero 2010 emissions standards.

“SCR enables us to extend our power range while maintaining excellent fuel economy, maintenance intervals and overall low cost of ownership,” said Dave Crompton, general manager of the mid-range engine business.

SCR technology uses a chemical called urea and a catalytic converter to significantly reduce NOx emissions. In 2006, Cummins launched its mid-range engines certified to the Euro 4 standard using SCR.

“Leveraging our experience in Europe, Cummins is positioned to implement SCR better than any other engine manufacturer in North America,” Crompton said.

Company officials attributed their success to an integrated business structure that enables them to tap the core competencies of Cummins Emission Solutions, Cummins Turbo Technologies, Cummins Fuel Systems and Cummins Filtration. Secondly, they said Cummins benefits from its worldwide experience.

Cummins Inc., headquartered in Columbus, Ind., has complementary business units that design, manufacture, distribute and service engines and related technologies, including fuel systems, controls, air handling, filtration, emission solutions and electrical power generation systems.

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