Catalytic Converter - Volvo S60 Owner's Manual

Specifications

Catalytic converter

Catalytic converter
The catalytic converter is an additional part of
the exhaust system. Its purpose is to purify
exhaust. The converter primarily consists of a
housing with two monoliths that are designed so
that the exhaust gases pass through a
honeycomb of 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.
Lambda-sond TM (heated oxygen
sensor, petrol engines only)
The lambda sensor is part of a management
system intended to reduce emissions and
improve fuel economy. An oxygen sensor
monitors the oxygen content of the exhaust
gases leaving the engine. These values are fed
into an electronic system that continuously
controls the injectors. The ratio of air to fuel is
continuously adjusted. These adjustments
create optimal conditions for efficient
combustion, and together with the three-way
catalytic converter reduce harmful emissions
(hydrocarbons, carbon monoxide and nitrous
oxides).
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