Homogeneous Charge Compression Ignition (HCCI) refers to the engine ignition which is the combination of Spark Ignition (Otto-Engine or SI-Engine) and Compression Ignition (Diesel Engine). The process utilizes homogeneous fuel-air mixtures similar to the SI-engine and uses high compression ratio for mixture to auto-ignite similar to the diesel engine. This lean homogeneous mixture reduces particulate emissions and helps auto-ignition, reducing the overall emission of NOx to about 90-98%. The ... Read more
