Fuel Smarts

Cummins Launches Two-Stage Turbocharger

March 26, 2015

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The MY-2016 Nissan Titan XD will be equipped with a Cummins 5.0L V-8 Turbo Diesel. Photo: Nissan
The MY-2016 Nissan Titan XD will be equipped with a Cummins 5.0L V-8 Turbo Diesel. Photo: Nissan

Cummins Turbo Technologies, a manufacturer of turbocharger technology, will officially launch its new two-stage turbocharger powering the 2016 Nissan TITAN XD this week during the Mid-America Trucking Show (MATS) in Louisville, Ky. The next-generation two-stage system with rotary turbine control (RTC) is Cummins is designed to deliver high efficiency, excellent driveability, and low emissions levels, according to the company.

This integrated technology was developed in partnership with Cummins Engine Business and Nissan specifically for use on the 2016 Nissan TITAN XD pickup truck.

This custom two-stage technology, developed at the company’s technical centers in Huddersfield, U.K., and Columbus, Ind., will be fitted to the Cummins 5.0L V-8 Turbo Diesel engine and showcased in tandem with the TITAN XD at the show. It will offer flexible architecture that efficiently integrates and packages two turbochargers in series to deliver high performance levels while still meeting the stringent emissions targets of the light-duty market, according to Cummins.

Sitting within Cummins Turbo Technologies’ specially modulated two-stage (M2) product range, the RTC technology, which is used to channel exhaust to the required areas for complete exhaust control capability, has four main operating modes:

  1. High Pressure Two-Stage Turbo Mode – Minimizes turbo lag and enables a better vehicle transient performance.
  2. Low Pressure Single Stage Turbo Mode – Enables higher power performance while ensuring smooth transparent mode transition without vehicle driveability impacts.
  3. Wastegate Mode – Maximizes engine power output.
  4. Regen Mode – Optimized after-treatment operating conditions for emissions control.

End users will benefit from more responsive and efficient power control, creating a seamless driving experience.

“Advances in air-handling technology and improved system integration continue to provide new turbocharging solutions that enable customers to achieve their emissions and efficiency targets without compromising engine performance. Highly efficient and highly durable, this pioneering technology offers a smart alternative to variable geometry,” said Jonathan Wood, Executive director – research and engineering. “Nissan is the first to benefit from the new technology. Working in partnership with the Cummins Engine Team and Nissan, we have developed a custom system solution that is tailored to the customer’s operational requirements.”

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