Testing of Tula's sophisticated cylinder deactivation control technology on a Cummins engine showed a 74% reduction in nitrogen oxides (NOx) emissions. We talked to Tula's senior engineer about how it works.
Tenneco’s Cold Start Thermal Unit will be combined with Eaton’s TVS blower technology to create an integrated exhaust thermal management system intended to reduce harmful exhaust emissions.
The California Air Resources Board approved sweeping new emissions regulations affecting heavy-duty trucks sold in the state. Truck and engine makers decried the new rule.
Better fuel economy and lower emissions, already proven in extensive tests by Jacobs, have now been independently measured.
The EPA is looking to establish more stringent heavy-duty diesel truck emission standards for oxides of nitrogen (NOx) and other pollutants. The exact rule may well hinge on public comments— and the agency may be deluged by them, both pro and con, given the early reaction.
Sweden’s Volvo Group will set aside $780 million to cover estimated costs to address a faulty emissions control component used in diesel engines sold in certain markets, including North America and Europe.
A new report by the Energy Transitions Commission shows that reaching net-zero carbon emissions from heavy industry and heavy-duty transport can be done through ambitious policy, accelerated innovation, and investment, with minimal cost to the global economy.
The California Air Resources Board has adopted a new emissions tracking program that would help regulators identify vehicles with excess smog-related and greenhouse gas emissions.
Seemingly acting out of character, the Environmental Protection Agency on Nov. 13 announced it will launch a rulemaking to further cut the emission of nitrogen oxide from diesel-powered heavy-duty trucks.
Cummins showed off an emissions reduction concept that promises drastic reductions to NOx and particulate matter emissions in future diesel engines.