catalytic converter - katalitički konvertor, katalizator; Da bi se smanjila zagađenost atmosfere, u izduvni sistem motora se ubacuje katalizator koji veliki deo otrovnih gasova u izduvu motora pretvara u neškodljive materije.
ref. Enciklopedijski r. motora i mot. vozila, A. Jovanović

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Note added at 19 mins (2009-07-08 06:56:28 GMT)
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http://en.wikipedia.org/wiki/Catalytic_converter
A catalytic converter (colloquially, "cat" or "catcon") is a device used to reduce the toxicity of emissions from an internal combustion engine. First widely introduced on series-production automobiles in the U.S. market for the 1975 model year to comply with tightening EPA regulations on auto exhaust, catalytic converters are still most commonly used in motor vehicle exhaust systems.

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Note added at 39 mins (2009-07-08 07:16:28 GMT)
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http://blog.ritelefax.hr/post/2001/03/010322-katalizator.asp...
Logičan nastavak teme iz prošloga broja, kada je bila riječ o zagađenju koga proizvode ispušni plinovi iz automobila, je uređaj za pročišćavanje tih plinova, u cijelom svijetu poznat pod nazivom katalizator.