Westport Develops New Natural Gas System for Medium-Duty Truck Engines

Westport Innovations introduced a new enhanced spark-ignited (ESI) natural gas system. This new technology is reported to provide 10% improvements in power and torque over base diesel engines and reaches comparable fuel economy.  Additionally, the ESI natural gas system provides up to 40% brake thermal efficiency compared to the 25-30% brake thermal efficiency of a typical spark ignited natural gas engine. The ESI combustion system is designed mainly for sub-9-liter engines for class 6 and 7 truck applications.

For more information read the Westport news release.

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