GPF Design Based on Sierpinski Triangle

In order to adapt to strict emission regulations and reduce particulate emissions from gasoline engines, continuous research on GPF is needed to improve particulate capture efficiency. The structure and working principle of gasoline engine particle catchers are studied. A new type of GPF is designed based on the Sierpinski triangle structure. The GPF shell is designed according to the structure of the filter body, and the flow guide plate is designed to make the gas flow rate uniform. The model and accessories of the filter body are modeled in Solid Works. Based on the repeated characteristics of the filter body structure, a unit body is extracted to simplify the analysis. The simulation was performed using the filter unit. The flow rate of exhaust gas between the new filter structure and the traditional filter body was compared in addition to the pressure of the filter body and the trapping effect of small molecular particles in the exhaust gas. Through analysis and comparison, it can be concluded that the new GPF filter structure has better trapping efficiency than the traditional filter structure.