HCCI engine: An internal combustion engine in which well-mixed fuel and air mixture is compressed to the point of auto-ignition. Thus it has the characteristics of combustion of both the spark ignition as well as the compression ignition engine. Related posts: Personnel Management Operative Functions Administrative Role of PM Competency HR Management Role Change Personnel Policies Personnel Procedures Appealed Policies Implied Policies Specific Policies Personnel records Research Pure research Personnel research Attitude or Opinion Survey Turnover Secondary research Applied research Personnel audit Read more articles Previous PostHalogen lamp Next PostHeat gasket