The Assembly Deformation and Pressure of Stuffed Catalytic Converter Accounting for the Hysteresis Behavior of Pressure vs Density Curve of the Intumescent Mat 2000-01-0223
Accurately predicting converter assembly deformation and mat pressure is essential in converter packaging design and manufacturing. In stuffing packaging, the annulus between the deformed shell and the catalyst is larger than that between the stuffing cone and the catalyst. As a result, the mat expands and undergoes unloading process. Tests show that the mat exhibits different loading and unloading characteristics. Using such a hysteresis mat pressure vs density curve in finite element analysis, the computed converter deformations closely agree with test data. Conversly, neglecting the mat hysteresis behavior may overestimate the deformation and pressure by a factor of three to four.
Citation: Li, F., "The Assembly Deformation and Pressure of Stuffed Catalytic Converter Accounting for the Hysteresis Behavior of Pressure vs Density Curve of the Intumescent Mat," SAE Technical Paper 2000-01-0223, 2000, https://doi.org/10.4271/2000-01-0223. Download Citation
Fong Z. Li
Delphi Automotive Systems
SAE 2000 World Congress
Sensors and Transducers-PT-68, Advanced Catalysts Substrates and Advanced Converter Packaging-SP-1532