ABSTRACT This paper reports on a field test with 23 Volvo D12C non-exhaust gas recirculation diesel engines using the Diesel Particulate Filter (DPF), Selective Catalytic Reduction (SCR), and urea ...

LOUISVILLE. At the Mid-America Trucking Show yesterday, Volvo Trucks North America announced that its 2010 highway trucks equipped with SCR (selective catalytic reduction) emissions control systems ...

The diesel particulate filter (DPF) has continued to improve over its 15-year existence. So have other components of aftertreatment systems (ATS) that help send cleaner exhaust through the DPF.

We appear to be learning from our mistakes in aftertreatment system maintenance, but we still have a way to go before we’re at peace with the things. Strictly speaking, diesel particulate filters, ...

Manufacturers are busy rolling out solutions to meet Final Tier 4 off-road requirements for diesel engine exhaust emissions, and the technologies look very familiar to those already in use in the ...

Modern medium- and heavy-duty trucks have sophisticated exhaust aftertreatment systems that can include a diesel oxidation catalyst (DOC), diesel particulate filter (DPF) and selective catalytic ...

The move from Tier 3 to Tier 4 Final diesel engines above 74 horsepower brought with it a whole grab bag of new components and systems – diesel particulate filters (DPFs), diesel oxidation catalysts ...

Volvo Trucks North America announced that it will no longer require active diesel particulate filter (DPF) regenerations on its 2010 engines with selective catalytic reduction (SCR). In extensive ...

This story appears in the Aug. 8 print edition of Equipment & Maintenance Update, a supplement to Transport Topics. In the wake of federal clean-air mandates in 2007 and 2010, maintenance technicians ...

When an emissions aftertreatment issue rears its ugly head, one of the biggest mistakes a technician can make is to assume it’s an emissions aftertreatment problem. Often, issues that present in the ...