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 air injection or induction, and positive crankcase ventilation

Dictionary of automotive terms. 2015.

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  • emission control system — See evaporative emission control system exhaust emission control system …   Dictionary of automotive terms

  • emission-control system — ▪ automotive technology       in automotive engineering, means employed to limit the discharge of noxious gases from the internal combustion engine. There are four main sources of these gases: the engine exhaust, the crankcase, the fuel tank, and …   Universalium

  • exhaust gas purification system — An emission control system for diesel engines, which may consist of an exhaust scrubber, a diesel exhaust filter, and/or a catalytic converter …   Dictionary of automotive terms

  • control system — All of the components required for the automatic control of a process variable. See active noise control system anti spin regulation traction control system engine control system evaporation control system evaporative emission control system… …   Dictionary of automotive terms

  • emission control — A system for restricting the amount of noxious emissions. There are two standards for emission controls: level E for Europe and the more stringent level U for the United States. See exhaust emission control evaporative emission control system …   Dictionary of automotive terms

  • thermactor exhaust control system — (TEC) an air injector type of exhaust emission control system used by Ford …   Dictionary of automotive terms

  • control — [1] A device or mechanism for adjusting a component. See cruise control. [2] The ability of the driver to make a vehicle perform as required. [3] To regulate. [4] Automatic or manual device used to stop, start, and/or regulate flow of gas, liquid …   Dictionary of automotive terms

  • emission — The passing of gases and other toxic substances into the atmosphere. Also see automotive emissions crankcase emissions evaporative emission control system evaporative emissions exhaust emission controls exhaust emissions low emission low …   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 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

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