摘要 |
A method of operating a combustion apparatus (10) having an engine (12) and an air processing unit (14) comprises: separating inlet air in the air processing unit (14) into oxygen enriched air and nitrogen enriched air; delivering oxygen enriched air to the engine (12) and initiating homogeneous charge compression ignition combustion, and then reducing the mass of oxygen enriched air being delivered to the engine (12) and maintaining homogeneous charge compression ignition combustion. |