the general food store

The EGR system routes a number of the exhaust gases (6 ? 10%) through the EGR valve, back in for the Intake System, and finally inside combustion chamber. The exhaust gases are inert i.e. they do not burn inside the combustion chamber; also, the exhaust gases occupy a few of the space which may otherwise be taken from the intake air. This cuts down on level of intake air readily available for the combustion process during each Power Stroke; which often decreases the peak combustion temperatures. This ends in lower NOx emissions. Most people have either watched or been aware of the movie Wall-e. It was a a cute film, set way into the future, concerning the adventures of the little robot that has been left behind in the world to up the mess put aside by humans. The humans are living in space when they wait for the earth being re-habitable to allow them to all return. Wall-e meets another robot called EVE, who may have been shipped to earth to hunt out any indications of new life (growing plants), falls in love and follows her into space where they're involved with a lot of antics before Wall-e eventually returns to earth with EVE, the humans follow and they also set about so that it is a great location to live again.