Cooling exhaust gas from a vehicle engine comprises indirectly cooling the exhaust gas with air in a heat exchanger. An independent claim is also included for for a heat exchanger for cooling exhaust gas from a vehicle engine, comprising a heat exchange zo...

In order to improve performance and more precise emission controls of an internal combustion engine, there is provided a method of controlling an internal combustion engine, the engine including a variable flow exhaust gas recirculation (EGR) system driven...

In an internal combustion engine capable of selectively switching between a low temperature combustion state and an ordinary combustion state, a combustion control apparatus can suppress an amount of smoke emitted from the engine to the ambient atmosphere,...