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New Combustion Systems in Spark Ignited Engines

3 days MOT/COMBE-E
  • Engineers and technical staff who have to optimize SI engines’ combustion.
  • This course provides an understanding direct or indirect injection SI engines: the physics of the mixture preparation, of the combustion and of the pollutants formation; as well as the influence of the engine setting parameters.
Learning Objectives
  • Upon completion of the course, participants will be able to:
  • organize a series of tests,
  • analyze the results in order to optimize combustion,
  • know the evolution trends for the next 5 years.
  • IC engines fundamentals.
Ways and means
  • Interactive talks.
  • Many "up-to-date" examples and combustion videos.

Current technologies & associated combustion systems 0.75 day
  • Regulations: CO2, particles, WLTP.
  • Current engine technologies, associated combustion systems, indirect injection (GII), direct injection (GDI), central jet spray, side jet spray, homogeneous combustion, stratified combustion, CAI.
  • Impact of air loops, variable timing.
Generic approach of combustion systems (GII & GDI) 0.25 day
  • Normal combustions: turbulence, thermodynamical conditions, spark ignition.
  • Abnormal combustions: knocking, rumble, superknocking, …
  • Valve timing, impact on combustion.
Combustion system design with indirect injection (GII) 1 day
  • Combustion chamber shape, ports design, injector targeting, rail pressure.
  • Warm phase combustion.
  • Cold phase combustion.
Combustion system design with homogeneous direct injection lambda = 1 0.5 day
  • Central jet spray, side jet spray, combustion chamber shape.
  • Injector targeting.
  • Injection system, injection strategies, multiple injections.
  • Particles, dilution.
  • Warm phase combustion.
  • Cold phase combustion.
Technical evolutions 0.5 day
  • Impact of combustion optimizing on architecture choice: 2, 3, 4 cylinders.
  • International context (RON, intake spoiling, flex-fuel, …).
  • Technical evolution in 2020 view.
2017 course calendar
Language Dates Location Tuition Register
Apr 18 - 20 Rueil €1,890 Online By email