We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United...
RGR, a consortium comprising Spoornet, the South African rail operator, and NPLI, an international group of companies specialising in infrastructure investment, has signed a concession agreement with the Mozambican Railways and Government to upgrade and run the Maputo corridor line for the next 15 years.
Exhaust-gas-recycle (EGR) is one system that helps to control pre-ignition and reduce emissions. EGR operates when conditions exist that cause pinging or valve clatter. A valve opens and circulates exhaust gas into the intake manifold to cool the combustion process. Exhaust gas is very low in oxygen. Adding exhaust gas to the fuel/air mixture, helps lower cylinder temperature.