Invention Grant
US08444729B2 Electrically regenerated exhaust particulate filter having non-axial regeneration flame propagation 有权
具有非轴向再生火焰传播的电再生排气微粒过滤器

Electrically regenerated exhaust particulate filter having non-axial regeneration flame propagation
Abstract:
An exhaust particulate filter for an engine system includes an array of filter cartridges positioned within a shell, each of the cartridges having an electrically powered heating element coupled therewith. Exhaust gases may be distributed among the cartridges according to a single distribution pattern, and the filter can be regenerated without diverting, dividing or bypassing exhaust gases from the filter. The filter cartridges may be cylindrical or wedge-shaped, or of a variety of other configurations. Regeneration may take place according to a non-axial regeneration propagation profile. Other aspects include feedback control and feedforward control of regeneration based on sensing an electrical resistance property of each of the electrically powered heating elements.
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