Abstract
Ultra-lean-burn combustion is viewed by many as a necessary next significant step in the evolution of the gasoline engine. However, emission constraints require that these engines operate under stoichiometric conditions to avoid costly emissions control solutions. The addition of small amounts of hydrogen to the cylinder charge can allow these types of engines to operate much leaner than they otherwise could, eliminating the need to treat NOx emissions altogether. While this is not a new idea, it is Arvin-Meritor’s development of a compact and fast-response fuel reformer that is bringing this concept much closer to reality.
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References
Tully, E.J.; Heywood, J.B.: Lean-Burn Characteristics of a Gasoline Engine Enriched with Hydrogen from a Plasmatron Fuel Reformer. In: SAE 2003-01-0630, 2003
Topinka, J.A.; Gerty, M.D.; Heywood, J.B.; Keck, J.C.: Knock Behavior of a Lean-Burn H2 and CO Enhanced, SI Gasoline Engine Concept. In: SAE 2004-01-0975, 2004
Smaling, R.M.: System Architecture Analysis of a Hydrogen Enhanced IC Engine. Proceedings of the 2004 ASME International Mechanical Engineering Congress and R&D Expo, Anaheim, California, 2004
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Beister, UJ., Smaling, R. Hydrogen-enhanced combustion. MTZ Worldw 66, 17–19 (2005). https://doi.org/10.1007/BF03227789
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DOI: https://doi.org/10.1007/BF03227789