EPA gives approval to Detroit Diesel dual-fuel engine

Nov. 15, 2013

Landi Renzo USA announced it has received EPA approval of a dual-fuel (diesel and natural gas) engine. The remanufactured powerplant is a pre-EGR Detroit Diesel S60 12.7L engine.

The dual-fuel system injects natural gas after the turbo/intercooler and a computer controls the exact balance of natural gas and diesel fuels, to achieve the maximum performance, efficiency, and economy, Landi Renzo said.

This engine runs on compressed natural gas, which replaces the majority of diesel fuel usage for an average fuel displacement of up to 60% and noise reduction of up to 40%.

According to the company, the dual-fuel engine reduces particulate matter by up to 40%, CO2 up to 14% and smoke reduction up to 50%.

“As a world leader in alternative fuel systems, we are pleased to present the availability of this innovative technology. Not only does this expand our current clean fuel product offering, but also it further promotes the increased use of natural gas as a fuel and moves us further down a path of energy independence in the United States,” said Andrea Landi, president.

Landi Renzo said benefits of the engine include:

  • Performance comparable to the original pre-EGR engine in terms of torque, horsepower, drivability, and economy
  • Maintains and improves the emission levels of the original engine
  • Flexibility for adaptation to different diesel engines
  • Ability to switch back to 100% diesel if needed
  • Requires less CNG storage compared to a dedicated CNG vehicles
  • Extended range compared to original diesel system

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