Diesel particulate filters (DPFs) are devices designed to trap and remove particulate matter (PM) from diesel engine exhaust gases. These filters have become a crucial component in modern diesel vehicles, especially in the UK, where they have been mandatory for all new diesel cars since 2009. This article will discuss everything you must learn about them and other DPF solutions.
What Is It?
A DPF is a device that removes soot and other small particles from diesel engine exhaust gases. The filter works by trapping these particles in tiny channels or pores within the filter material. Over time, the trapped particles build up and create a blockage, leading to reduced engine performance and increased emissions. To prevent this, the filter must be periodically cleaned or regenerated.
How Does It Work?
DPFs work by trapping particulate matter (PM) in the filter media. The filter media is typically made of ceramic or metal fibres woven into a mesh-like structure. As exhaust gases pass through the filter, the PM becomes trapped in the filter media. The filter is designed to capture particles that are 10 microns or larger. Once the filter becomes clogged with PM, it must be cleaned or regenerated to restore performance.
There are two main types of regeneration: passive and active. Passive regeneration occurs naturally when the engine runs at high temperatures, usually on the motorway, and the exhaust fumes are hot enough to burn the trapped particles. On the other hand, active regeneration is initiated by the engine management system when the filter becomes clogged and cannot regenerate naturally. This process involves injecting extra fuel into the engine to increase exhaust gas temperature and trigger regeneration.
What Are the Benefits?
DPFs help to reduce harmful emissions from diesel vehicles, including particulate matter, nitrogen oxides, and other pollutants. This makes them important in meeting emissions regulations in the UK and other countries. DPFs also help improve fuel efficiency and extend the engine’s lifespan by reducing the accumulated soot and other contaminants.
What Are the Common Issues?
DPFs can become clogged with soot and particulate matter over time, leading to reduced engine performance and increased emissions. If the filter becomes too clogged, it may need replacing, which can be expensive, or require DPF cleaning. Additionally, they require regular maintenance to ensure they are functioning properly. This includes periodic cleaning or regeneration, which may require a special process or equipment.
What Are the Best Maintenance Practices?
To maintain a DPF, it is important to follow the manufacturer’s recommended maintenance schedule. This may include regular vehicle inspections, oil changes, and DPF cleaning or regeneration. Using the right fuel and oil is also important, as using the wrong type can increase particulate matter and other harmful emissions. Additionally, it is important to drive the vehicle in a way that promotes regeneration, such as driving at high speeds on the motorway.
Clean Your DPF with DPF Fixer
Diesel particulate filters are an important component in modern diesel vehicles, helping to reduce harmful emissions and improve fuel efficiency. But they require regular maintenance to ensure they are functioning properly. Following the manufacturer’s recommended maintenance schedule and driving the vehicle to promote regeneration can help extend the lifespan of your DPF and keep your vehicle running smoothly.
Our mobile units for DPF cleaning are available on call now, with nationwide reach across the UK. Call 0333-366-1404 now!