Tuesday, May 13, 2008

Terminology Tuesday: HCCI

Homogeneous Charge Compression Ignition (HCCI) is engine technology that uses the best of diesel and gasoline in its quest for greater fuel efficiency. Gas engines use spark ignition, while diesel engines are compression ignition (using the pressure of the piston to compress the air-fuel mixture to create heat and ignition, rather than spark plugs like a gas engine). General Motors is experimenting with both technologies to find a more efficient, less-polluting engine.

Read more about it from the guys over at EcoGeek.

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