biggest locomotive in the world

French Spiderman Alain Robert has finished his latest climbing the tallest building in the world. Alain has successfully reached the top in the tapered spire across the 160th floor from the building. The 47-year-old is renowned for climbing buildings all over the world just using bare hands and climbing shoes. The EGR system routes a number of the exhaust gases (6 ? 10%) over the EGR valve, in for the Intake System, and finally inside combustion chamber. The exhaust gases are inert i.e. they cannot burn within the combustion chamber; also, the exhaust gases take up many of the space which will rather be taken from the intake air. This reduces the level of intake air available for the combustion process during each Power Stroke; which experts claim decreases the peak combustion temperatures. This leads to lower NOx emissions.