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1. (WO1997007326) EXHAUST MANIFOLD WITH INTEGRAL CATALYTIC CONVERTER

Pub. No.:    WO/1997/007326    International Application No.:    PCT/US1996/011793
Publication Date: Feb 27, 1997 International Filing Date: Jul 16, 1996
IPC: B01D 53/86
C04B 35/80
F01N 13/10
F01N 13/16
F01N 13/18
F01N 3/28
F16L 41/03
Applicants: NORTHROP-GRUMMAN CORPORATION
Inventors: ATMUR, Steven
STRASSER, Edward
Title: EXHAUST MANIFOLD WITH INTEGRAL CATALYTIC CONVERTER
Abstract:
A pollutant reducing exhaust manifold (10') for an internal combustion engine incorporating a catalytic converter therein. The manifold (10') has a plurality of header pipes connected to and receiving exhaust gases from respective ones of a plurality of exhaust ports of an internal combustion engine. The header pipes (22) are connected to a single chamber (24) with an outlet (30) therefrom connected to an exhaust pipe (16) as well as a catalytic converter structure having a catalyst disposed on a supporting substrate (26) disposed in the chamber (24) between the inlet(s) (28) and the outlet (30) so that all exhaust gases from the engine must pass through the catalytic converter structure. The catalytic converter operates at higher temperatures for increased efficiency and comes to operating temperature virtually immediately unlike existing converters. Accordingly, the amount of pollutants released to the atmosphere from the engine is reduced.