Quote:
Originally Posted by serialk11r
I don't really get why this dedicated EGR loop is better than normal external EGR, they don't really say anything about it.
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If you Google Partial Oxidation Reactor (POx reactor) you will get a bunch of sciencey stuff and a few useful links to how one works. Basically, the reactor combusts the gasoline as a rich mixture resulting in the production of the usual CO2 and H2O along with smaller quantities of CO and H2. The carbon monoxide just adds to the combustible fuel mix and so does the hydrogen, but the hydrogen does more. It accelerates the flame speed and the reaction rate resulting in more possible power production for the same amount of fuel used as well as a greater reduction of emissions.
This compares to standard exhaust gas which has only Nitrogen, CO2 and water as it's main constituents and can provide only a flame quenching effect.