Patent ID: 8166751
Filing Date: 2012-05-01
Classification: F01N,Y02T

Abstract:
1. A filter comprising: a housing including an inlet and an outlet, the housing including a first section and a second section, the first and second sections being arranged in parallel with respect to a flow of fluid directed through the filter; and a plurality of parallel channels defined by a plurality of porous walls within the first and second sections of the housing, the plurality of channels extending between the inlet and the outlet; the plurality of channels in the first section of the housing including at least one first channel and at least one second channel, the at least one first channel including an inlet stopper and an open outlet, the at least one second channel including an outlet stopper and an open inlet, at least one of the inlet or outlet stoppers being removable to provide a desired level of filtration; and the plurality of channels in the second section of the housing including at least one open channel, wherein the walls and the inlet and outlet stoppers in the first section of the housing are at least partially coated with a catalytic material for converting NO to NO