CATALYTIC CONVERTER APPARATUS

摘要

A catalytic converter apparatus for use in an exhaust system of an internal combustion engine includes a housing having a gas inlet and a gas outlet, and at least one catalytic substrate element disposed in the housing. The at least one substrate element is divided into a plurality of zones or sections, the zones at least partially separated from one another to inhibit heat flow. The zones can be at least partially separated with walls. The walls can include insulating material for reducing the mobility of heat radially outwardly. Each of the zones defines a generally separate flow passage connecting the inlet and outlet in fluid communication. The apparatus can heat more rapidly from a cold start compared with conventional catalytic converters.

主权项

1. An improved substrate for use in the exhaust system of an internal combustion engine, the exhaust system including a catalytic converter housing having an inlet cone having a single gas inlet and an outlet cone having a single gas outlet, the substrate being of the type which, in use, is disposed in the catalytic converter housing, the improvement comprising:
at least one wall at least partially dividing the substrate into a plurality of zones, each of the zones defining a generally separate flow passage connecting the gas inlet and the gas outlet in fluid communication; the at least one wall being adapted to inhibit heat flow between the zones and being generally impervious to gas flow between the zones; and the substrate wall thickness being constant in all zones.