exhaust gas recirculation system

exhaust gas recirculation system
(EGR) a system used to control oxides of nitrogen (NOx) the exhaust gases are recirculated, lowering the engine combustion temperature, thereby reducing engine pollutants

Dictionary of automotive terms. 2015.

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  • Exhaust gas recirculation — (EGR) is a nitrogen oxide (NOx) emissions reduction technique used in most gasoline and diesel engines.EGR works by recirculating a portion of an engine s exhaust gas back to the engine cylinders. Intermixing the incoming air with recirculated… …   Wikipedia

  • coolant controlled exhaust gas recirculation — (CCEGR) a system that prevents exhaust gas recirculation until engine coolant temperature reaches a specific value …   Dictionary of automotive terms

  • exhaust-gas recirculation — (EGR) An emission control system where some of the exhaust gases are rerouted from the exhaust manifold into the combustion chamber to make sure that all fuel is burned before entering the atmosphere. The process lowers the combustion temperature …   Dictionary of automotive terms

  • exhaust emission control system — A general term for any system that reduces the harmful exhaust emissions of a motor vehicle, including one or all of the following systems: catalytic converter (with or without oxygen sensor air/fuel control), exhaust gas recirculation, secondary …   Dictionary of automotive terms

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  • recirculation — See exhaust gas recirculation fuel vapor recirculation system …   Dictionary of automotive terms

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