Johnson Matthey Public Limited Company

Klas Anders Andreasson

James Patrick Warren

Ronny Allansson

Ari Uusimaki

Nils Myers

A heavy duty diesel engine having an exhaust system incorporating a catalyst to convert NO to NO and a particulate trap on which soot particles are continuously oxidized, and a portion of the exhaust gases are recirculated through a cooler and exhaust gas flow valve before being mixed with air and fed to the engine cylinders. The system also incorporates a sensor to detect the amount of NOx in the exhaust to adjust the gas flow valve, thereby adjusting the portion of recirculated exhaust gas fed to the engine cylinders.

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Frolunda, Sweden

Klas Anders Andreasson