Catalyzing system

Details Catalyzing system Catalyzing system

F - Mech Eng,Light,Heat,Weapons

01

N

172/10

F01N 3/22 (2006.01) F01N 3/28 (2006.01) F01N 3/30 (2006.01)

Patent

CA 1333696

Herein disclosed is a catalyzing system for an automotive engine, which comprises: a primary reducing catalyst and a secondary oxidizing catalyst arrayed in tandem just downstream of an exhaust manifold, the primary catalyst being accommodated in the exhaust manifold; and a catalyst case connected to the exhaust manifold and accommodating the secondary catalyst; and a secondary air inlet port formed in the flanged por- tions of the exhaust manifold and the catalyst case. Alternatively, the catalyzing system comprises: a pri- mary reducing catalyst and a secondary oxidizing cata- lyst arrayed in tandem just downstream of an exhaust manifold, the primary catalyst being accommodated in the exhaust manifold; and a space defined between the primary and secondary catalysts by extending the ex- haust manifold at its primary catalyst holding portion to the secondary catalyst.

603771

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