Company working on new mid-range natural gas engine
Wednesday, October 10, 2012
VANCOUVER, British Columbia — Cummins Westport Inc. recently announced it has begun development on the ISB6.7 G, a mid-range 6.7 liter natural gas engine designed to meet the increasing demand for on-highway vehicles powered by natural gas.
The ISB6.7 G engine will be based on the Cummins ISB6.7 diesel engine and will use Cummins Westport’s spark-ignited, stoichiometric cooled exhaust gas recirculation technology. Exhaust aftertreatment will be provided by a maintenance-free, three-way catalyst.
The engine will run on compressed natural gas, however, the natural gas may be stored on the vehicle in liquefied natural gas state or as CNG. The ISB6.7 G is expected to be in production by 2015 and will be designed to meet Environmental Protection Agency and California Air Resources Board regulations in force at the time of launch.
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