The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2013
Filed:
Jul. 15, 2009
Brett M. Bailey, Peoria, IL (US);
Clifford E. Cotton, Bradford, IL (US);
Christopher J. Rynders, Jr., Peoria Heights, IL (US);
Michael J. Readey, Boulder, CO (US);
Michael J. Pollard, Peoria, IL (US);
Robert L. Meyer, Metamora, IL (US);
Brett M. Bailey, Peoria, IL (US);
Clifford E. Cotton, Bradford, IL (US);
Christopher J. Rynders, Jr., Peoria Heights, IL (US);
Michael J. Readey, Boulder, CO (US);
Michael J. Pollard, Peoria, IL (US);
Robert L. Meyer, Metamora, IL (US);
Caterpillar Inc., Peoria, IL (US);
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.