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Diesel Particulate Trap of Corrugated Honeycomb Fabricated with Mullite Fiber Ceramics
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 01, 1986 by SAE International in United States
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High temperature capability filter traps have typically been employed for the collection of the solid particulates from the diesel exhaust (1,2,3,4,5,6)*. Our efforts have concentrated on trying to apply the sintered textile structure of ceramic fibers as filtering elements of diesel particulate traps, Mullite fiber ceramics is prepared by sintering as composites of Mullite fibers and silica-alumina clay. Mullite fiber ceramics has a porosity of up to 80%. Generally the higher porosity trap element would exhibit lower filtration efficiency (7). However, diesel particulate traps composed of the porous Mullite fiber ceramics show significantly high filtration efficiency of around 75%. Mullite has a higher working temperature than Cordierite, but its relatively larger thermal expansion coefficient (5.0×10−6/°C) results in poor thermal shock resistivity. Nevertheless, the thermal shock resistivity of Mullite fiber ceramics is extraordinarily improved by its very high porosity of up to 80% and its textile structure. As diesel particulates accumulate on the porous textile structure of Mullite fiber ceramics, the back pressure rise rate is fairly low. This paper describes some characteristics, performance and evaluation of the Mullite fiber ceramic diesel particulate trap of corrugated honeycomb.
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- Toshihiro Mihara - Central Research Laboratory Matsushita Electric Industrial Co., Ltd.
- Satoshi Kuwano - Central Research Laboratory Matsushita Electric Industrial Co., Ltd.
- Takao Kusuda - Central Research Laboratory Matsushita Electric Industrial Co., Ltd.
- Masaaki Yonemura - Central Research Laboratory Matsushita Electric Industrial Co., Ltd.
- Mitsuyoshi Nakamoto - Central Research Laboratory Matsushita Electric Industrial Co., Ltd.
- Masuo Takigawa - Central Research Laboratory Matsushita Electric Industrial Co., Ltd.
CitationMihara, T., Kuwano, S., Kusuda, T., Yonemura, M. et al., "Diesel Particulate Trap of Corrugated Honeycomb Fabricated with Mullite Fiber Ceramics," SAE Technical Paper 860010, 1986, https://doi.org/10.4271/860010.
- Howitt J. S. Montierth M. R. “Cellular Ceramic Diesel Particulate Filter” SAE Paper 810114 February 1981
- Higuchi Noboru Mochida Shigeru Kojima Masaru “Optimized Regeneration Conditions of Ceramic Honeycomb Diesel Particulate Filters” SAE Paper 830078 February 1983
- Watanabe Yoji Irako Koichi Miyajima Toshiyuki Yoshimoto Toshio “Trapless Trap-A Catalytic Combusion System of Diesel Particulates Using Ceramic Form” SAE Paper 830082 February 1983
- Tukto J. J, Lestz S. S. Brockmeyer J. W. Dore J. E. “Feasibility of Ceramic Form as a Diesel Particulate Trap” SAE Paper 840073 February 1984
- Abthoff Jorg Schuster Hans-Dieter Langer Hans-Joachim Loose Gunter “The Regenerable Trap Oxidizer-An. Emission Control Technique for Diesel Engine” SAE Paper 850015 February 1985
- Simon Gerald M. Stark Terrence L. “Diesel Particulate Trap Regeneration Using Ceramic Wall-Flow Traps, Fuel Additives, and Supplemental Electrical Igniters” SAE Paper 850016 February 1985
- Oh Se H. MacDonald J. Scott Vaneman Gerald L. Louis-Hegedus L. “Mathematical Molding of Fibrous Filters for Diesel Particulates-Theory and Experiment” SAE Paper 810113 February 1981
- Mogaka Z. N, Wong V. W. Shahed S. M. “Performance and Regeneration Characteristics of a Cellular Ceramic Diesel Particulate Trap” SAE Paper 820272 February 1982
- Environmental Protection Agency Standard for Emission of Particulate Regulation for Diesel-Fueled Light-Duty Vehicles and Light-Duty Trucks Federal Resister 1980