KnowraÉtienne LenoirLinked fromLinked fromThe 6 pages that link to Étienne Lenoir, each with the reason it gives.All 6Related 4Compared with 2Four-stroke engineCompared with: His earlier engine shows the different cycle that preceded practical four-stroke engines.Alphonse Beau de RochasCompared with: Lenoir's earlier engine provides a practical predecessor to the principles Beau de Rochas proposed.