As fleets work towards reducing emissions, understanding the differences in aftertreatment systems for various fuel types is crucial. The adoption and growth of hydrogen internal combustion engines (ICE) is a significant step as hydrogen ICE provides a low-emission, low-carbon option for a more sustainable transportation sector. The mechanisms that clean exhaust gases in these engines are fundamentally the same as diesel ICE, with the key difference being what is in the exhaust gas to start with.

In short, the Komatsu S4D102E-1 engine and Cummins 4BT3.9 engine use the same basic engine components (cylinder head, valves, valve inserts, block, crankshaft, con-rods).

The transportation industry is navigating the delicate balance between performance enhancement and sustainability. A pivotal aspect of this journey is the evolution of engine braking and Valvetrain technologies due to the direct link these components have with engine performance and fuel consumption. This article helps explain the latest developments around braking and Valvetrain technologies, and how they are contributing to improved performance while complying with emissions regulations.

Cummins Valvetrain Technologies reports positive results from further on-road testing of its Jacobs® cylinder deactivation (CDA) technology, which is designed to improve the environmental and economic performance of heavy-duty road vehicles.