Devices For Reducing Diesel Engine Emissions; Oxidising Catalytic Converter; Exhaust Gas Recirculation (E.g.r.) System - Lancia Thesis Owner's Handbook Manual

DEVICES FOR REDUCING DIESEL ENGINE EMISSIONS

Oxidising catalytic converter

This device converts the polluting substances in the exhaust gas (carbon monoxide, unburnt hydro-
carbons and particulates) into harmless substances, thus reducing the smokiness and smell associat-
ed with diesel engine exhaust fumes.
The catalytic converter consists of a stainless steel case containing a honeycomb ceramic core in
which there is the precious metal that carries out the catalysing action.

Exhaust Gas Recirculation (E.G.R.) system

This system recirculates or reuses part of the exhaust gas in a proportion which varies according to
engine operating conditions.
When necessary, it is used for the control of nitrogen oxide emissions.