Cars with engines having low combustion chamber surface area in relation to volume have correspondingly low exhaust hydrocarbon concentration on the California Schedule.Combustion chamber surface area relative to volume increases with compression ratio and number of cylinders, and it decreases with long stroke and larger displacement.
Combustion Chamber Surface Area, A Key to Exhaust Hydrocarbons
Sae Technical Papers
1966 Automotive Engineering Congress and Exposition ; 1966
01.02.1966
Aufsatz (Konferenz)
Englisch
Study of Oxygen Containing Hydrocarbons in Exhaust Emission from Gasoline SI Combustion
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