Perkins Engines Company Limited

James J Reed

Tom W Carlill

Stephen William Bird

Alistair C Farman

Sanjay K Rajani

Anil Raina

Paul J Quinney

Jason L Soilleux

In one aspect an internal combustion engine assembly may be provided that may include at least one combustion chamber and an exhaust system with an after-treatment system that may have an oxidation catalyst and a particulate filter. The internal combustion engine assembly may include an electronic controller that may have a de-contamination function that may, responsive to a command be configured to de-contaminate the particulate filter and the oxidation catalyst. To that end, a method may be provided to, and the controller may be configured to increase the exhaust gas temperature at an inlet of the after-treatment system to above a de-contamination temperature during a certain time period.

After-treatment de-contamination system

An exhaust treatment system is provided having a tank configured to store a supply of reductant. The system also has a heat source configured to heat the reductant and a diverter valve configured to regulate the heat source.

Exhaust treatment system having a diverter valve

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Yaxley, United Kingdom

James J Reed