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Development of DPF for Commercial Vehicle (Fourth Report)~Pre-Catalyst Supporting to Active Regeneration
Published September 28, 2005 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Autumn Conference
The active regeneration method of DPF system, supplying fuel to a pre-catalyst and heating up a filter, was reported in the previous reports. The pre-catalyst having high fuel combustion performance and gas oxidation activity was adapted to the system. The pre-catalyst includes Pt and Pd as active species. It is found that Pd is very effective for fuel combustion. In this report, process of the development for the pre-catalyst, improved performances, and increased durability are described.