Study on Combustion and Emissions of a Spark Ignition Engine with Gasoline Port Injection Plus Acetone–Butanol–Ethanol (ABE) Direct Injection under Different Speeds and Loads

ABE can be used as an alternative fuel for engines. This paper studies the combustion and emission performances of SI engine with GPI plus ABEDI at different speeds loads. The operating conditions included 1000–2600 rpm MAP = 50 kPa loads 30–70 a speed 1800 rpm. ABEDIr contained 0%, 20%, 40%, 60%, 80%, 100%. At 1000–1800 or 2200–2600 rpm, testing results showed corresponding to maximum IMEP 80% When HC NOx emissions were lowest Meanwhile, NPN APN both decreased increasing ABEDIr. As increased, CA0-90 decreased. loads, ABE-added fuels had lower higher values than pure gasoline. PN was 4 × 104 n/cm3 when over 80%. Overall, is great choice performance test range speeds, better if power main requirement high