| 摘要 |
The invention concerns a method for supplying iron, via the fuel, to the particulate trap of a diesel engine exhaust in a form suitable for promoting trap regeneration. The method involves the addition to the fuel of a define d colloid of iron oxide. Combustion of this colloid produces iron-containing compounds, especially iron oxides, which collect in association with carbon aceous particulate matter in the particulate trap, and function to promote t he combustion of this matter. The colloid in particular shows a lower level of associated deposit formation on the fuel injectors than the iron additive s of the prior art. The method is thus particularly suitable for modern engi nes showing increased susceptibility to fuel injector deposits. The colloid also shows a balance of properties providing excellent suitability for use a s an additive in fuels, and especially in diesel engine on-board dosing devi ces.
|
