Diesel Particulate Filters (DPF)
Vehicles with diesel engines that we drive emit harmful pollutants, chemicals, and compounds into the air we breathe. So to ensure a safer and cleaner environment, a new filtration system was implemented in 2007 in all diesel-run vehicles called the diesel particulate filter or DPF.
Ever since DPFs were first introduced to exhaust systems in 2007, they have been considered as both a blessing and a curse.
They were first used for safety purposes and to meet Environment Canada and Transport Canada’s regulations since they strip soot and ash from the exhaust stream.
Although exhaust-gas recirculation was already being used to reduce nitrogen oxides, DPFs further helped enhance a pollution free exhaust system by cleaning the emitted gas and eliminating the characteristic diesel smell.
That’s the blessing. The curse comes from the extra maintenance and repairs required to keep the systems operating.
Original equipment manufacturer (or OEM) DPFs are also very expensive to replace if the original one gets damaged.
Redline Light Duty Truck DPFs
Redline Emissions Product have now come up with a new OEM replacement DPF for light duty trucks called the Redline Light Duty Truck DPF. These Redline DPFs offer a high-performance and cheaper alternative to OEM DPFs.
Redline light duty DPFs come in variants for your Dodge, Ford, Chevrolet and other GM light duty trucks. They offer a wide variety of features that can match the performance and quality of an OEM DPF.
Redline DPFs offer equivalent performance to OEM DPFs meaning that you have an equally good alternative at a cheaper rate. These filters have a very high-efficiency rate by filtering out about 99 percent of soot or particulate matter from your truck’s diesel engines.
Redline light duty truck DPFs also has an added advantage over other competitors by offering much lower back pressure levels at all tested engine loads. They also offer optimized PGM (or Platinum Group Metals) loading which provides cleaner exhaust, increased durability, and reduced DPF regeneration events.
Redline Light Duty Truck DPF Soot Reduction Technique – Passive DPF and Active Diesel Injection
Exhaust soot is a heavily regulated emission for diesel engines, and in-cylinder soot reduction techniques are commonly used to reduce or eliminate after treatment burden. A common in-cylinder solution for soot reduction is the use of post injections.
Post-injections are used for a variety of reasons, including management of exhaust after treatment and reduction of unburned hydrocarbons at low-temperature combustion conditions.
The alternative to using post-injection in the cylinders is heating the exhaust stream directly. This is achieved by heating the exhaust with an extra fuel injector positioned upstream from a catalytic oxidizer (the current Duramax engine uses this approach).
The combusting fuel increases exhaust temperature needed to carry out the reaction. This is the most efficient method of increasing exhaust temperature and typically uses 35 to 50 percent less fuel than the post-combustion injection technology (fuel sprayed into the engine’s cylinder after top dead center) used by Ford, GM, and Dodge.
This method minimizes engine wear since no changes to the engine performance—through engine management or increased power generation—is required. For retrofit or OEM replacement programs, this is also the simpler and less costly approach.
The technique has been adopted by Redline light duty truck DPFs to reduce cost but at the same time maintain an equal performance to OEM DPFs.