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:
Jan. 21, 2014
Filed:
Jan. 21, 2011
Jacobus Neels, Rosedale, CA;
Richard Sederquist, Middletown, CT (US);
Xuantian LI, Richmond, CA;
Lasitha Cumaranatunge, Burnaby, CA;
Campbell R. Mcconnell, Vancouver, CA;
Jacobus Neels, Rosedale, CA;
Richard Sederquist, Middletown, CT (US);
Xuantian Li, Richmond, CA;
Lasitha Cumaranatunge, Burnaby, CA;
Campbell R. McConnell, Vancouver, CA;
Westport Power Inc., Vancouver, British Columbia, CA;
Abstract
A system and method for regenerating a device in an engine exhaust after-treatment system is provided. To regenerate the device, a syngas stream is introduced into the engine exhaust stream and combusts in the presence of a catalyst in the after-treatment system, raising the temperature. A supplemental liquid fuel stream is then selectively introduced into and is vaporized by the syngas stream to form a combined fuel stream. Combustion of the combined fuel stream with the engine exhaust in the presence of the catalyst further heats the device bringing it to a temperature suitable for regeneration. The catalyst can be upstream of or within the device being regenerated.