Vishal Singh, 55Bloomington, IL

7213397, May 8, 2007

Feb 7, 2005

11/052647

Haoran Hu - Novi MI, US
Subbaraya Radhamohan - Novi MI, US
Karen Evelyn Bevan - Northville MI, US
Jiyang Yan - Troy MI, US
Johannes W. Reuter - Ypsilanti MI, US
Vishal Singh - Farmington Hills MI, US

Eaton Corporation - Cleveland OH

F01N 3/00

60295, 60274, 60275, 60286, 60301

The invention relates to a power generation system with a continuously operating fuel reformer. Preferably, the fuel reformer is either off, warming up, or operating with an essentially constant fueling rate. Some of the reformed fuel is intermittently used to regenerate a NOx trap that treats the exhaust of an internal combustion engine. Any reformed fuel not used for other purposes is supplied to a fuel cell. The fuel reformer does not shut down between NOx trap regeneration cycles except when the engine is also shut down. The invention substantially eliminates issues of reformer response time as they relate to NOx trap regeneration.

2006017, Aug 17, 2006

Feb 16, 2005

11/059498

Haoran Hu - Novi MI, US
Subbaraya Radhamohan - Novi MI, US
Karen Bevan - Northville MI, US
James McCarthy - Canton MI, US
Johannes Reuter - Ypsilanti MI, US
Vishal Singh - Farmington Hills MI, US
Wayne Kaboord - Oregon WI, US
Fred Begale - Oconomowoc WI, US
Dawn Becher - Random Lake WI, US

Eaton Corporation - Cleveland OH

F01N 3/00
F01N 3/02

060297000, 060295000, 060311000

One concept of the inventors relates to a system and method in which a particulate filter comprises at least about 40% by weight of an NOx adsorbant. The filter can be used as both an NOx trap and a particulate filter. By constructing the filter elements using a substantial amount of NOx adsorbant, a large volume of NOx adsorbant can be incorporated into the particulate filter, which substantially reduces the volume and expense of an exhaust system that includes both a catalytic diesel particulate filter and an NOx trap having a large quantity of NOx adsorbant. In a preferred embodiment, the filter also oxidizes NO to NO. In another preferred embodiment, an SCR catalyst is position downstream of the filter elements.

7062904, Jun 20, 2006

Feb 16, 2005

11/059238

Haoran Hu - Novi MI, US
Subbaraya Radhamohan - Novi MI, US
Karen Evelyn Bevan - Northville MI, US
Johannes W. Reuter - Ypsilanti MI, US
Vishal Singh - Farmington Hills MI, US

Eaton Corporation - Cleveland OH

F01N 3/00

60286, 60274, 60295, 60297, 60301, 60311

One aspect of the invention relates to a particulate filter useful in treating exhaust from a diesel-power vehicle. The particulate filter comprises filter elements for removing particulate matter and an ammonia SCR catalyst. Ammonia can be produced during regeneration of an NOx adsorbant. The adsorbant can be contained in a separate device upstream of the particulate filter or be incorporated within the particulate filter. Another aspect of the invention relates to a method of cleaning exhaust comprising passing the exhaust over an NOx adsorber to adsorb a portion of NOx from the exhaust; passing the exhaust through a particulate filter to remove particulate matter from the exhaust; and removing a further portion of NOx from the exhaust by reducing it with ammonia over an ammonia SCR catalyst. Preferably, a catalyst contained within the adsorbant provides NOfor continuously regenerating the particulate filter.