The LCE principle brings many advantages. Some of the most important ones are:

  • simple mechanical construction
  • optimal-regime-only operation
  • higher power density and thermodynamic efficiency in comparison to a standard motor-generator
  • option to use either combustion or diesel type
  • compression ratio adjustable by a simple change in control software
  • use of various fuels (hydrogen, gas, LPG, NG, bio gas, methyl alcohol, diesel, bio diesel, …)
  • possibility of precise expansion phase control through variable electric supply


Every system has its cons; here some of the important ones:

  • need for a sophisticated control system
  • every faulty thermodynamic cycle stops the motor - can be resolved by a control system
  • higher vibration during operation - can be resolved by multiple cylinders or by shock absorbers