Exhaust Emission Control (Automobile)


Exhaust Emission Control

In the year 1966, first time the controls for exhaust gases were introduced. Today, exhaust emission control devices can be placed under five categories as follows :
(i) Air injection system or pulse air system.
(ii) Engine design modification, also called clean air system.
(Hi) Spark timing.
(iv) Exhaust gas recirculation (EGR) system.
(v) Catalytic converter system.

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