If it hadn't been for the development of copper zeolite as a catalyst to use in reducing nitrogen oxides (NOx), Cummins might have been right alongside Navistar in using increased levels of exhaust ...

COLUMBUS, I. - Today Cummins Inc. (NYSE: CUM) announced that it has shipped the first of its on-highway engines certified by the Environmental Protection Agency (EPA) to the 2.5-gram NOx + NMHC ...

Yet adding near-zero NOx technology across the Cummins Westport natural gas truck engine family will be heavily dependent on funding from a coalition of stakeholders, the company stressed. “This is ...

COLUMBUS, Ind. (April 2, 2002) — Cummins announced today that the U.S. Environmental Protection Agency has certified its ISX engine as meeting the 2.5-gram NOx + NMHC diesel engine emissions standard ...

COLUMBUS, Ind. – Cummins Engine Company says it is ready for the October release of its new heavy-duty diesel engines, and expects certification of its ISX 02 engine very soon. The first limited ...