General Motors is the first builder to apply a propellent group of type HCCI to two rolling prototypes, in fact Opel Vectra and adapted Saturn Aura.
These two models are endowed each of one four cylinders Ecotec of 2,2 liters of 180 hp modified. Contrary to engines gasoline with ignition by spark, by means of a candle, or of a Diesel, the process HCCI ( Homogeneous Charge Compression Ignition) watches to release the energy without front of flame, in weak temperature and in all the combustion chamber. So, in identical usage, this engine will consume 15 % of fuel less. The HCCI technology works with all the gasolines and the fuel E85 at present available on the market. But the mass production is not still for tomorrow.
Discover the other technical information about the combustion to autoinflammation in the free file encarté “Ecology” in the automobile Instructor number 1416.
