Invention Grant
- Patent Title: Electrically regenerated exhaust particulate filter having non-axial regeneration flame propagation
- Patent Title (中): 具有非轴向再生火焰传播的电再生排气微粒过滤器
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Application No.: US12503136Application Date: 2009-07-15
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Publication No.: US08444729B2Publication Date: 2013-05-21
- Inventor: Brett M. Bailey , Clifford E. Cotton , Christopher J. Rynders, Jr. , Michael J. Readey , Michael J. Pollard , Robert L. Meyer
- Applicant: Brett M. Bailey , Clifford E. Cotton , Christopher J. Rynders, Jr. , Michael J. Readey , Michael J. Pollard , Robert L. Meyer
- Applicant Address: US IL Peoria
- Assignee: Caterpillar Inc.
- Current Assignee: Caterpillar Inc.
- Current Assignee Address: US IL Peoria
- Main IPC: B01D50/00
- IPC: B01D50/00 ; B01D39/14 ; B01D39/06 ; B01D24/00 ; B01D46/00

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.
Public/Granted literature
- US20090272263A1 ELECTRICALLY REGENERATED EXHAUST PARTICULATE FILTER HAVING NON-AXIAL REGENERATION FLAME PROPAGATION Public/Granted day:2009-11-05
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