Increasing the Efficiency of a Two-Stroke Car Diesel Engine

The innovative two-stroke car diesel engine concept from Aumet Oy is based on a very rapid gas exchange through poppet valves in the cylinder head when the piston approaches top dead centre. This rapid gas exchange is achieved by high-pressure scavenging air that is produced externally. From 1990 to 2000, many car manufacturers examined ways of improving the two-stroke car diesel engine.
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Author(s): M.Sc. Timo Janhunen; Aumet Oy; Prof. Martti Larmi


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