Automobile Engineering in ME
A three way catalytic converter

Burns fuel vapour gases
Removes CO, HC, and NO₂ from the exhaust gases passing through it
Re-circulates exhaust gases
Reduces N₂, H₂O, and CO₂ emission levels

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Automobile Engineering in ME
In a ventilated disc brake

A duct directs air towards the caliper for cooling while the vehicle is moving
Disc contains radial vanes between its rubbing surfaces for optimum cooling performance
Disc contains many small holes for optimum cooling performance
Caliper is covered with cooling fins

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