Cylinder deactivation can reduce NOx emissions through hotter exhaust temperatures and allow more efficient engine operation on fewer cylinders under low-load conditions.
The cleanest natural-gas-powered trucks will be exempt from the Port of Long Beach Clean Truck Fund Rate as a transitional step to zero-emissions trucks becoming widely available.
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.
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