GM introduces HCCI gasoline engines with diesel like fuel-economy

GM today introduced the combustion process formally known as homogeneous charge compression ignition, or HCCI, for the first time in two drivable concept cars. GM has fitted the 2007 Saturn Aura and the Opel Vectra with HCCI which provides up to 15 percent fuel savings while meeting future emissions standards.

Virtually the engines burn gasoline in the same way that a diesel engine burns diesel fuel. To do this the process is combined with advanced technologies, direct injection, electric cam phasing, variable valve lift and cylinder pressure sensing....
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SevorbeupstryIsBack - 8/24/2007 11:55:55 AM

+1 Boost

Great technology but Merc's DiesOtto is still more of revolution we had in the last decade.

Bmw8ter - 8/24/2007 10:08:30 PM

+1 Boost

The DiesOtto might be creating a "revolution" in Europe, but in the U.S.(IMO), it doesn't mean anything to us; especially when an overpriced car company is the one developing it.....unless the DiesOtto becomes the standard for gasoline vehicles.

EnnNorak - 8/24/2007 2:58:59 PM

+1 Boost

Whatever happened to development of the stratified charge engine? That seemed like a good idea for fuel economy at the time. GM is pushing ahead with small diesels also, we have to be able to make full use of all the distillates produced in the refining pocess.