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IPFS News Link • Science, Medicine and Technology

Fiat Scores 25% Engine Improvement

• arclein
This is an innovation that will allow the present engines in use to meet the next wave of government mandated mile per gallon regulation for automobiles quite handily and buy a little time for the tooling up of the alternatives that no one fails to b

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Comment by Fascist Nation
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...internal exhaust gas recirculation, realized by reopening the intake valves during the exhaust stroke, result in emissions reductions ranging from 40 per cent for unburnt hydrocarbons and carbon monoxide (HC/CO), and up to a 60 per cent cut in oxides of nitrogen, (NOx).

That's a bit harsh on the intake manifold and intake valves.