Diesel Particulate Filter
System (DPFS)
The Particles Filter is a “cylinder”
located in the exhaust line. Made up mainly of a
bar of carborundum, it is highly porous, with a
large number of tiny holes that trap the soot from
the combustion.
To avoid the filter getting blocked up and to destroy
the soot particles, the filter has to be periodically
(every 80,000 km) “regenerated”, which
means that with the help of an additive, the soot
is burnt off inside the filter itself.
Given
the high operating temperatures in competition,
the filter has no need to be regenerated. That
is the main difference between standard and racing
models.
The two filters (one per exhaust line) must therefore
be big enough to hold the soot for the entire
24 hours. Lastly, the FAP’s must also naturally
be the most compact and lightest possible, to
facilitate fitting into the car.
|
