This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Particulate Traps: Some Progress; Some Problems
Annotation ability available
Sector:
Language:
English
Abstract
Two ceramic monolith wall flow diesel particulate traps, incorporating a new split flow design with a base metal catalytic coating were tested on line haul highway trucks to investigate their performance characteristics. The trucks were equipped with a 300 HP turbocharged and after-cooled engine.
After-cooler by-pass was used to effect the regeneration of the trap and an elapsed-time scheme was employed to control the regeneration process.
Tests were terminated after one trap completed 147,500 miles of operation on the truck for in-depth examination of the trap to determine the cause of substantial increase in back pressure. Tests with the second trap of identical design was also terminated due to filtering efficiency loss, the cause of which was traced to a flaw in the canning arrangement. This arrangement permitted exhaust flow to by-pass the element and led to melt down of the trap, due to reduced flow during regeneration.
Further work is required to improve the construction of the trap, to develop a better control and regeneration system, and to the mitigate causes of increased back pressure to arrive at a successful solution for a viable trap technology.
Recommended Content
| Technical Paper | Thermal Analysis of Functional Gradient Materials as Thermal Barrier Coating of Piston |
| Technical Paper | Thermal Durability of Wall-Flow Ceramic Diesel Particulate Filters |
| Technical Paper | Waterborne Basecoat Applications |
Authors
Topic
Citation
Yumlu, S., "Particulate Traps: Some Progress; Some Problems," SAE Technical Paper 880347, 1988, https://doi.org/10.4271/880347.Also In
References
- Mizuno H. Kitagawa J. Kijikata T. “Effect of Cell Structure on Regeneration Failure of Ceramic Honecomb Diesel Particulate Filter,” SAE Paper No. 870010 1987
- Hardenberg H.O. Dandel H.L. Endmannsdorfer H.J. “Experiences in the Development of Ceramic Fiber Coil Particulate Traps,” SAE Paper No. 870015 1987
- Nuira Yoshinori Ohkubo Kenji Yagi Kinihua “Study on Catalytic Regeneration of Ceramic Diesel Particulate Filter,” SAE Paper No. 860290 1986
- Thomas S.K. “Diesel Particulate Emissions Projection,” The Motor Vehicle Manufacturers Association September 22 1986