What technology helps capture and reduce particulate matter in diesel engines?

The technology that specifically helps capture and reduce particulate matter in diesel engines is the Diesel Particulate Filter (DPF). The DPF is designed to trap soot and other particulate emissions generated during combustion processes in diesel engines. By doing so, it significantly reduces the amount of harmful particulate matter released into the atmosphere, thereby improving air quality and reducing environmental impact.

The DPF works by using a porous ceramic material to filter the exhaust gases. As the exhaust passes through the filter, larger particulate matter is trapped while the cleaner gases continue to flow through. Over time, the accumulated soot needs to be burned off in a process known as regeneration, which typically occurs when the engine reaches a certain temperature.

This technology is critical in meeting stringent emissions regulations imposed on diesel vehicles, making it an essential component of modern diesel engines. The use of a DPF is particularly important given the known health risks associated with particulate matter, which can lead to respiratory and cardiovascular diseases.

Other technologies listed, like the Gasoline Particulate Filter (GPF) or Oxidation Catalyst System (OCS), do have their roles in emissions control, but they are not specifically designed for diesel engines or primarily for capturing particulate matter. An Air Filtration System is generally focused on preventing