Diesel particulate filters are currently the most efficient technology for reducing the harmful exhaust emissions of diesel engines and play a decisive role in solving the problems of increasing air pollution. Harmful soot particles, among others, are produced during the combustion process of diesel engines and can be filtered out to a large extent by DPF. Many things have changed since the breakthrough of the technology in 2000. Euro 6 zones are being introduced in more and more cities, and the requirements of the emission standards have also become stricter.
Not only do the purified diesel particulate filters by EMINOX conform to the currently valid Euro 6 emission standard, they also protect the environment and your budget.
Diesel particulate filter products
Used parts criteria – return of used DPFs
In order to guarantee the quality of the purified diesel particulate filters, we rely on the filters that are returned conforming to our criteria for used parts: No physical damage must be present on the honeycombs or the housing. Unfortunately, we cannot accept any return of filters with dents, holes or oil contamination.
Functionality of diesel particulate filters
99% of the filters used in the automotive industry are wall-flow filters. The channel ends in these ceramic filters are alternately open and closed. The porous nature of the ceramic means that up to 98 % of the particles can be filtered out of the exhaust gas. The soot builds up in the pores and clogs the filter over time.
Can diesel particulate filters purify themselves?
The soot that builds up in the pores must be incinerated regularly. The vehicle’s electrical control unit uses pressure sensors to detect when this regeneration process needs to be initiated. However, a small amount of incombustible ash remains after each incineration. This accumulates until the filter is completely filled with the ash. The diesel particulate filter must then be replaced.
How do I know when the DPF has to be changed?
Unfortunately, we cannot provide a general answer because the operational time of a diesel particulate filter depends on the vehicle manufacturer and also on the purpose for which the vehicle is used. There are either predefined exchange intervals or the driver is alerted by the vehicle. We recommend adhering to the service intervals of the vehicle manufacturer so that the filters can be regularly checked during the appointment and the vehicle does not break down unexpectedly due to a clogged diesel particulate filter.