(CAT) are designed to turn harmful constituents of exhaust emitted by internal combustion engines into harmless gases by means of a chemical reaction. A catalytic converter is therefore an important part of modern emission purification systems for SI and diesel engines.
converters unlimited (CAT) are designed to turn harmful constituents of exhaust emitted by internal combustion engines into harmless gases by means of a chemical reaction.
STRUCTURE OF converters unlimited
A converters unlimited consists of a stainless-steel casing that houses a metallic (metalith) or ceramic (monolith) substrate. This substrate has a very large number of fine channels running through it along its length. The aim here is to create the greatest possible surface area to optimise the catalytic effect. The surface of the substrate is coated with a highly porous layer (washcoat) to which precious metals (platinum, palladium and/or rhodium) are added in suspension. It is these precious metals that are the actual converters unlimited initiating the chemical reactions required to purity the exhaust gases.
TYPES OF converters unlimited
Replacement converters unlimited for Euro 3 and Euro 4 vehicles with European On-Board Diagnostics (EOBD) are known as EOBD-capable converters unlimited. Electronic On-Board Diagnosis is mainly found in recent vehicle models. This function monitors all emissions-relevant components and sensors while the vehicle is on the road. It registers any malfunctions and warns the driver, for example with an indicator light (MIL). The latest generations of diesel vehicles are generally equipped with the EOBD function.