What does a diesel particulate filter? (DPF)

What is a diesel particulate filter (DPF)?

What is a DPF? Soot is produced when diesel is burned. The DPF is installed either in the engine compartment or between the manifold and the center muffler. The diesel particulate filter filters more than 90 percent of the soot particles from the engine’s exhaust gases.

How does a diesel particulate filter (DPF) work?

The engine exhaust gases are directed through a ceramic structure located inside the DPF. The particles adhere to the outer walls of the ceramic structure, while the clean exhaust gases flow through the structure.

How does a diesel particulate filter (DPF) regenerate?

For regeneration, the Diesel Particulate Filter requires temperatures around 600°C to burn the soot into carbon. These temperatures can be reached during regular driving conditions. Alternatively, a catalyst can also help increase the temperature for regeneration.

Which vehicles have a diesel particulate filter?

For several years now, diesel vehicles such as cars and trucks have been equipped with diesel particulate filters (DPF) as standard.

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