Automobile Engineering in ME
A three way catalytic converter

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

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Automobile Engineering in ME
In a ventilated disc brake

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

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