This paper is to investigate field application of a metal foam PDPF(partial diesel particulate filter) with gradient pore layer which is applying in aged vehicles from testing in field and chassis dyno with 2.6 Liter diesel vehicle. The on-road test o...
This paper is to investigate field application of a metal foam PDPF(partial diesel particulate filter) with gradient pore layer which is applying in aged vehicles from testing in field and chassis dyno with 2.6 Liter diesel vehicle. The on-road test of the metal foam PDPF with gradient foam porosity was conducted under city and urban driving conditions, in order to validate the potential of enhanced passive regeneration activity. In the chassis dyno test, the P.M. reduction rate was achieved to 77% at CVS-75 mode after 80,000㎞ running and the mass emission of P.M. met the requirement for euro-4.
In addition, the metal foam PDPF has been tested on-road for 4 hour and more under low and high speed patterns respectively in order to measure soot load index.(SLI) in the two patterns and to validate the regeneration performance. The rate of increase of SLI was reduced to 20% compared to the cordierite DPF in low speed patterns.