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New generation engine-Gasoline direct injection technologyIn internal combustion
engines
, Gasoline Direct
Injection(GDI), also
known as Petrol
Direct Injection or
Direct Petrol
Injection or Spark
Ignited Direct
Injection(SIDI) or
Fuel Stratified
Injection(FSI) , is a
variant of fuel injection
employed in modern
two-stroke and four-
stroke gasoline engines.
The gasoline is highly
pressurized, and
injected via a common
rail fuel line directly into
the combustion
chamber of each
cylinder, as opposed to
conventional multi-point
fuel injection that
happens in the intake
tract, or cylinder port.
In some applications,
gasoline direct injection
enables a stratified fuel
charge (ultra lean burn)
combustion for
improved fuel
efficiency, and reduced
emission levels at low
load.
