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GM's HCCI engines now run from idle to 60 mph!

Since our first encounter with General Motors' HCCI (homogeneous charge compression ignition) engines in August 2007, the powertrain research engineers at the GM Tech Center in Warren, MI have continued plugging away at the technology, trying to turn it into a marketable reality. The basic premise of compression ignition is simple. Based on the Ideal gas law (PV=nRT), if you decrease the volume of a particular quantity of air, the temperature rises to the point where fuel will spontaneously combust. The hard part is controlling the pressure, ... Read more →

GM to debut HCCI on Opel Insignia? Jeremy Korzeniewski

Click on the HCCI equipped Opel Vectra for a high-res gallery There are rumors floating around the interwebs today regarding the Opel Insignia being the first official product from General Motors ...

VIDEO: GM's Paul Najt talks about HCCI engines Sam Abuelsamid

Last summer we had the chance to meet up with GM powertrain researcher Paul Najt and drive GM's prototype HCCI engines. Homegeneous charge compression ignition engines basically take some of the ...

Most promising green technologies number six: HCCI Jeremy Korzeniewski

Click on the image to view high-res shots of the Mercedes F700 concept Homogeneous Charge Compression Ignition, or HCCI, holds out a great deal of hope for green automotive enthusiasts. Mercedes-Benz ...

GM's HCCI engines now run from idle to 60 mph! 5 months ago on Autoblog Green

Since our first encounter with General Motors' HCCI (homogeneous charge compression ignition) engines in August 2007, the powertrain research engineers at the GM Tech Center in Warren, MI have continued plugging away at the technology, trying to turn it into a marketable reality. The basic premise ...

GM to debut HCCI on Opel Insignia? 1 year ago on Autoblog Green

Click on the HCCI equipped Opel Vectra for a high-res gallery There are rumors floating around the interwebs today regarding the Opel Insignia being the first official product from General Motors using its highly-efficient homegeneous charge compression ignition, or HCCI for short. We can't confirm ...

VIDEO: GM's Paul Najt talks about HCCI engines 1 year ago on Autoblog Green

Last summer we had the chance to meet up with GM powertrain researcher Paul Najt and drive GM's prototype HCCI engines. Homegeneous charge compression ignition engines basically take some of the technical concepts behind diesel engines and combine it with a gasoline engine. The result is a new ...

Most promising green technologies number six: HCCI 1 year ago on Autoblog Green

Click on the image to view high-res shots of the Mercedes F700 concept Homogeneous Charge Compression Ignition, or HCCI, holds out a great deal of hope for green automotive enthusiasts. Mercedes-Benz has shown concept vehicles using the technology, which they refer to as DiesOtto, in their F700 ...


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