New Delphi Diesel Particulate Filters
In compliance with European emissions standards, Delphi has launched a range of diesel particulate filters (DPFs) to the Aftermarket. The Delphi DPF features a Silicon Carbide filter which offers consumers a quality equivalent to the Original Equipment in terms of performance.
As legislation steers manufacturers to offer greener and safer automotive technologies, the aftermarket must prepare for its role in maintaining these automotive systems.
To combat the environmental effects of carbon particles and NOx, vehicle manufacturers have been led to design catalyst reduction systems that can both reduce and trap soot particles, in particular, fine inhalable soot molecules which are invisible to the naked eye. Diesel particulate filters play a significant role in diesel emissions control, therefore it is imperative that the complete system’s performance, from fuel injection through to the exhaust system, is managed carefully to guarantee successful replacements and repairs.
In order to support the increasing car parc, Delphi’s DPF programme represents a growth opportunity for workshops, not only through DPF service and repair, but also vehicle electronics and emission technology, which all work together to support reduced emissions.
In response to the aftermarket’s need for a quality DPF program, Delphi offers the parts, training, technical and diagnostic support for the service, regeneration and replacement of DPF components.
Manufactured with Silicon Carbide (SIC), Delphi’s DPFs allow for multiple regeneration cycles at temperatures in excess of 600˚C, critical to the longevity of green performing diesel engines.
Delphi engineering studies identified SIC, a material commonly used by the OEM, as a far more robust and emission efficient alternative to the popular Cordierite substrate which has become common place in the aftermarket.
In longevity tests, the Delphi substrate delivered equal emission and longevity results as the Original Equipment, lasting seven times longer than its aftermarket substitute, Cordierite.
The Delphi DPF filters feature a wash coat of precious metals which aids a lower regeneration temperature whilst also protecting the substrate from high regeneration temperatures. PSA applications work in conjunction with a catalyst additive which again assists the regeneration process by regulating combustion temperatures between 350˚ – 450˚C.
Delphi’s DPFs are designed with closed channels at opposite ends. The cell walls are porous allowing permeation of the gasses whilst retaining the solid soot matter in the filter/trap. When the pressure differential sensors or emission sensors register a variance in pressure, the ECU activates a regeneration cycle burning all soot collected in the filter.