The particulate filter traps and burns the particles produced by the engine. With the direct-injection common rail technology, the level of particle emissions from the HDi engine was already particularly low. With the PF, it drops still further to a level that is barely measurable. In this way, the engine goes well beyond the future environmental standards of the European Union.
The PF traps the particles on a filter and burns them at regular intervals |
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Particulate Filter |
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| The particles burn naturally at around 550 °C, but the initial temperature of the exhaust gases The PF modifies these two parameters through:
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a post-injection of fuel in the expansion phase, which generates post-combustion in the cylinder and raises the temperature of the gases by 200 °C to 250 °C, to around 350°C to 400 °C. |
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additional post-combustion generated by an oxidation catalyser placed upstream of the filter, which treats the unburned hydrocarbons from the post-injection phase. The temperature may increase by a further 100 °C, up to 450°C or
500 °C. |
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the fuel additive Eolys fuel additive. This additive lowers the natural particle combustion temperature to 450 °C. |
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| This technology gives the HDi diesel engine a real ecological advantage by combining its intrinsic performance with the ability to eliminate particles and fumes. |
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| * The models and/or versions featured on this site as well as their equipment, options and accessories may vary from one country to another or not be available locally. |
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