back to the future locomotive

The EGR system routes a number of the exhaust gases (6 ? 10%) from the EGR valve, last on the Intake System, and ultimately within the combustion chamber. The exhaust gases are inert i.e. they cannot burn in the combustion chamber; also, the exhaust gases take up a number of the space which would preferably be taken with the intake air. This reduces the volume of intake air readily available for the combustion process during each Power Stroke; which in turn decreases the peak combustion temperatures. This brings about lower NOx emissions. Today's world is filled with technologies, chemistry projects, social projects but nevertheless now were following the concept of their stage or dais. The only changes are happened honestly: their drama was performed in open air and today it can be inside covered area; in those days drama was performed only evening these days we can easily enjoy three times per day; there were no means of light facilities today it is totally computerized; that point dais was fixed and now it is revolving.