Navistar Introduces International ProStar+ Prototype
In partnership with Clean Air Power, Navistar has built and tested a 2011 International ProStar+ 122-inch BBC tractor with a 430 horsepower, 1,550 lb-ft dual fuel MaxxForce 13-liter engine.
The engine uses diesel pilot injection for combustion on the compression stroke and mixes air and LNG on the intake stroke. The result is an engine that runs on a mixture of 15 percent diesel and 85 percent natural gas.
The dual fuel 13-liter MaxxForce engine includes minimal changes to the stock diesel engine other than the addition of a natural gas injection system. Changes to the chassis include the addition of a 26-inch diameter, 119-gallon standard LNG tank that provides a 400 mile range, a coolant heated fuel vaporizer, and an LNG regulator and filter.
Navistar is currently working with the EPA to define the regulatory requirements of an EPA compliant dual fuel engine.
Additionally, Navistar has introduced ProStar+ With Maxxforce 15, which completes the broadest, most comprehensive lineup of integrated truck-engine offerings available to North American commercial truck customers.
Engineered specifically for Internationalâ€™s Class eight heavy-duty on-highway trucks, MaxxForce 15 for the International ProStar+ is available with up to 500 horsepower and 1,850 lb ft. of torque and is the most powerful engine Navistar builds (International PayStar heavy-duty vocational trucks are available with MaxxForce 15 up to 550 horsepower).
The engine is designed to handle the most extreme demands that customers require.
Jim Hebe, senior vice president of North American sales operations at Navistar, said: â€œRecognizing the abundant supply of natural gas in the United States and Canada, we feel compelled to invest in our products in such a way that enables our customers to expand their usage of very low emissions technologies through our engines.
â€œWith the addition of our MaxxForce 15, our lineup of MaxxForce Advanced EGR big bore engines truly differentiates us from the competition. The introduction of the ProStar+ with MaxxForce 15 now gives customers the ultimate combination in durability and power.â€
Will the move enhance sales of Navistar?
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