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Resolving EGR Distribution and Mixing
Technical Paper
2002-01-2882
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A minimally invasive spatially resolved capillary inlet mass spectrometer has been used to quantify EGR/air mixing in a Cummins V-8 medium-duty diesel engine. Two EGR-system hardware designs were evaluated in terms of EGR-air mixing at the intake manifold inlet and port-to-port EGR charge uniformity. Performance was assessed at four modalized-FTP engine conditions. One design is found to be considerably better, particularly at three of the four engine conditions. Specific questions such as the effect of maximizing mass air flow on EGR mixing, and if particular cylinders are EGR starved are investigated. The detailed performance characteristics suggest areas to focus improvement efforts, and serve as a foundation for identifying the non-uniformity EGR barriers and origins.
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Partridge, W., Lewis, S., Ruth, M., Muntean, G. et al., "Resolving EGR Distribution and Mixing," SAE Technical Paper 2002-01-2882, 2002, https://doi.org/10.4271/2002-01-2882.Also In
References
- Stang, J.H. Koeberlein, D.E. Ruth, M.J. 2001 “Cummins Light Truck Diesel Engine Progress Report,” SAE Paper No. 2001-01-2065
- Partridge, W.P. Storey, J.M.E. Lewis, S.A Smithwick, R.W. DeVault, G.L. Cunningham, M.J. Currier, N.W. Yonushonis, T.M. 2000 “Time-Resolved Measurements of Emission Transients By Mass Spectrometry,” SAE Paper No. 2000-01-2952