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Old 25-06-2013, 11:11 AM   #33
pi3141
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Join Date: Jul 2009
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EGR - Exhaust Gas Recirculation

Just seen it on telly! Eddie Stobarts truck show, they are buying new trucks from Sweden with EGR, the exhaust gasses gets recirculated and burnt a second time. Reduces emmisions by 80%.

I does this by re-burning the Hydrocarbons in the exhaust, therefore it must produce more energy.

I've said before, they discovered this with the jet engine afterburner, in that system it is using up wasted fuel, but a) its the same in a car engine, some fuel is unburnt and b) Hydrocarbon based gas is a fuel, whether its exhaust or intentionally produced as in the hydrocarbon crack system like this thread.
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