Multi-pass catalytic converter

Details Multi-pass catalytic converter Multi-pass catalytic converter

1996-08-23

1998-03-31

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

60308, 422171, F01N 328

Patent

active

057325553

ABSTRACT:
A multi-pass catalytic converter/muffler uses a single catalytic support bed without increasing the overall size of the catalytic converter/muffler. The outer surface area of the catalytic support bed is disposed adjacent to the outer wall of the catalytic converter housing, with only the mat in between. Secondary air may be provided upstream before the exhaust gases make their first pass through the catalytic support bed, or after the first pass but before the second pass or even after the second pass.

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