Table of Contents
Advertisement
11 Specifications
Catalytic converter
General
The purpose of the catalytic converter is to
purify exhaust gases. It is located in the flow of
exhaust gases close to the engine so that it
quickly reaches operating temperature. The
catalytic converter consists of a monolith
11
(ceramic or metal) with channels. The channel
walls are lined with a thin layer of platinum,
rhodium and palladium. These metals act as
catalysts, i.e. they participate in and accelerate
a chemical reaction without being used up
themselves.
TM
Lambda-sond
oxygen sensor
The Lambda-sond is part of a control system
intended to reduce emissions and improve fuel
economy.
An oxygen sensor monitors the oxygen content
of the exhaust gases leaving the engine. This
value is fed into an electronic system that con-
tinuously controls the injectors. The ratio of fuel
to air directed to the engine is continuously
adjusted. Together with the three-way catalytic
converter, these adjustments create optimal
conditions for efficient combustion of the
harmful emissions (hydrocarbons, carbon
monoxide and nitrous oxides).
290
Advertisement
Table of Contents
