new system to reduce pollution from diesel engines has
gone on trial in Yorkshire, following research by chemist
Dr Trevor Griffiths.
Griffiths explained: "The emissions technology system
allows air to bubble through a special mix of platinum,
rhodium and rhenium salts before entering the combustion
chamber as an aerosol. It's simple to fit even to older
vehicles, and could even be adapted for use with coal-fired
system's innovation is to bring the action of the standard
catalytic converter into the combustion chamber, rather
than working with the exhaust components. As well as reducing
pollutants, it improves fuel efficiency and increases
Griffiths, who formally retired recently, first saw the
system in the US, where he discovered the inventors didn't
fully know how it worked. The extensive analysis he carried
out while at the University helped to define the role
of the catalyst ingredients.
are currently taking place on council and police vehicles
in North Yorkshire and with the Road Haulage Association.