Center air manifold for catalytic converter

Details Center air manifold for catalytic converter Center air manifold for catalytic converter

F - Mech Eng,Light,Heat,Weapons

01

N

172/10

F01N 3/22 (2006.01) F01N 3/28 (2006.01) F01N 3/34 (2006.01) F01N 13/02 (2010.01)

Patent

CA 1104502

Abstract of the Disclosure A catalytic converter includes a shell defining first and second shell portions. A first substrate supports a reducing catalyst in the first shell portion. A second substrate supports an oxidizing catalyst in the second shell portion. The shell further includes inlet and outlet passageways. The inlet passageway is dis- posed in the shell adjacent the first shell portion and allows combustion products to enter the shell. The outlet passageway is disposed adjacent the second shell portion and allows combustion products to exit from the shell. A third passageway located longitudinally between the first and second shell portion allows com- bustion product to flow readily from the first shell portion into the second shell portion. A manifold introduces air into the combustion product flowing through the third passageway and an air fitting provides access to the manifold through an exterior wall of the shell. The manifold extends perimetrally at least partially about, and conforms to the interior wall of, the shell in the third passageway. The manifold has a plurality of apertures which open inwardly to direct a plurality of streams of air from the manifold into the stream of combustion product flowing through the third passageway. The converter can be of a "clam shell" type, having first and second longitudinal shell halves, or it can have a one piece main shell portion.

280647

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