Center air manifold for catalytic converter

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

1976-07-12

1977-09-20

Richman, Barry S.

Chemistry: physical processes

Physical processes

Crystallization

23288FC, 60301, B01J 800, F01N 315

Patent

active

040493881

ABSTRACT:
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 disposed 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 combustion 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.

REFERENCES:
patent: 2772147 (1956-11-01), Bowen et al.
patent: 3220805 (1965-11-01), Fowler et al.
patent: 3544264 (1970-12-01), Hardison
patent: 3598540 (1971-08-01), Chase
patent: 3662540 (1972-05-01), Murphey
patent: 3733829 (1973-05-01), Henault
patent: 3771969 (1973-11-01), Scheitlin
patent: 3773894 (1973-11-01), Bernstein et al.
patent: 3912459 (1975-10-01), Kearsley
patent: 3927984 (1975-12-01), Hartley
patent: 3930805 (1976-01-01), Vogt et al.
patent: 3978567 (1976-09-01), Vroman

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