Exhaust purification technologies
Cummins develops industry-leading aftertreatment technology designed to meet our customers’ needs for performance and reliability while optimizing fuel efficiency and cost savings. Cummings Emissions Solutions (CES) helps customers worldwide to meet the emission standards for today, tomorrow, and beyond with innovative, flexible, and integrated technology for light, medium, heavy-duty, and high-horsepower commercial off-highway markets.
Our off-highway aftertreatment technologies and components are designed to treat exhaust gases from off-highway, non-road diesel engines and power generator units. These systems are implemented to comply with stringent emission standards by reducing the levels of harmful pollutants released into the atmosphere. Off-highway equipment, including construction equipment, agricultural machinery, industrial machines, and light-duty applications with displacement ranges from Cummins 2.8L to 95L engines, are subject to emissions regulations aimed at mitigating the environmental impact of their operations.
Key components of off-highway aftertreatment systems
Diesel Particulate Filters (DPF)
DPFs capture and remove particulate matter (PM) or soot from exhaust gases. As exhaust flows through, particulates are trapped, and regeneration processes burn off the collected soot.
Selective Catalytic Reduction (SCR)
SCR technology is used in diesel, natural gas and dual-fuel engines. It uses a catalyst to convert nitrogen oxides (NOx) in the exhaust gas into nitrogen and water. This process involves injecting a urea-based solution (commonly known as diesel exhaust fluid or DEF) into the exhaust stream.
Diesel Oxidation Catalyst (DOC)
DOC converts carbon monoxide (CO) and hydrocarbons (HC) into carbon dioxide (CO2) and water.
Catalyzed Diesel Particulate Filters (CDPF)
CDPFs combine the functions of DPF and SCR in a single unit, offering a compact solution for emissions control.
Off-highway emission regulations supported
The emissions regulations for off-highway, non-road vehicles, power generator units and other equipment in the United States, Europe, China and India are designed to limit the emissions of pollutants from these types of equipment to reduce their impact on air quality and the environment.
Explore our markets
We serve customers across the globe, offering top-notch service and expertise.
Our main markets are in the United States, Europe, China, and India.
We are committed to growing our presence and providing value worldwide.