Overview of DPFs

Diesel particulate filters (DPF's) also known as ‘particulate traps', remove particulate matter from diesel engine exhausts. DPF's are becoming more common in trucks, buses and cars due to increasingly stringent international emissions regulations.

DPF's are made up of an extruded matrix of channels with adjacent channels blocked at alternate ends. This structure forces the exhaust gas to flow through the channel wall and this is how the particulate matter is trapped.

 

 

DPF's are used extensively to allow vehicles to meet the standards of Low Emission Zones and E-Zones in many major cities including London, Berlin, Amsterdam and Stockholm. They are also fitted to all new heavy-duty vehicles in the United States to comply with the recent EPA 07 and EPA 10 emission targets.

For more information on international emission regulations such as Euro 5 and Euro 6 and EPA 07 and EPA 10 visit Europa.eu or EPA.

For further information on LEZ's and E-zones visit Eminox.com

 

 

The most effective diesel particulate filters are full flow or closed DPF's. These wall flow filter based systems can remove 99% of particulate matter. DPF's come in a variety of sizes and use a range of materials including:

• Cordierite
• Silicon Carbide
• Aluminium Titanate

Our filter cleaning technology, XPurge® has successfully completed rigorous testing to ensure that it is suitable for all these types of DPF's.