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Gasoline Direct Injection (GDI)

Gasoline Direct Injection (GDI) is becoming the preferred fuel delivery method to maximize every drop of fuel. In a traditional engine, fuel and air mix together and then enter the combustion chamber through the intake valves. In a GDI engine, high-pressure fuel injectors deliver a fine mist of fuel directly into the combustion chamber. The fuel can enter the combustion chamber during the intake stroke (homogeneous charge) and/or during the compression stroke (stratified charge) depending on the engine load requirement. GDI engines burn leaner, have higher compression ratios, and increased power output. By eliminating wasted fuel on the intake manifold walls and by maximizing the energy of the fuel used in combustion, GDI engines decrease emissions (up to 15%) and increase fuel economy (up to 20%).