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. 27, 2008
Filed:
Feb. 13, 2004
Rahul Mital, Columbus, IN (US);
Bradlee J. Stroia, Columbus, IN (US);
Robert C. Yu, Columbus, IN (US);
Rahul Mital, Columbus, IN (US);
Bradlee J. Stroia, Columbus, IN (US);
Robert C. Yu, Columbus, IN (US);
Fleetguard, Inc., Nashville, IN (US);
Abstract
The invention provides a NOx adsorber aftertreatment system for internal combustion engines which utilizes a plasma fuel converter operatively coupled to at least one NOx adsorber to aid in the regeneration of the NOx adsorber. Fuel and engine exhaust is injected into a plasma fuel converter upstream of a NOx absorber producing reductant such as H, and CO, which are inlet into the NOx absorber. Reductants such as Hand CO acting along and together help to efficiently regenerate the NOx Adsorber which in turn releases exhausts products such as COand N. Using the reductants generated by the plasma fuel converter NOx adsorbers, catalytic soot filter, and the like can be regenerated at exhaust temperatures less than 250° C. The plasma fuel converter, NOx adsorber regenerating aftertreatment system of the present invention may be used with any suitable control system.