Johnson Matthey Public Limited Company

Ari Uusimaki

James Patrick Warren

Ronny Allansson

Nils Myers

Klas Anders Andreasson

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.

Growing community of inventors

Gothenburg, Sweden

Ari Uusimaki