초록 ▼

A pollutant-reducing catalytic converter for an internal combustion engine. The catalytic converter is of ceramic and operates at higher temperatures for increased efficiency. A ceramic foam is used as the substrate for the catalyst. The foam is an open-celled foam and the substrate is deposited on

A pollutant-reducing catalytic converter for an internal combustion engine. The catalytic converter is of ceramic and operates at higher temperatures for increased efficiency. A ceramic foam is used as the substrate for the catalyst. The foam is an open-celled foam and the substrate is deposited on the walls of the cells. Thus, there is a maximum area of catalyst with a minimum amount of catalyst required. The catalytic converter can be placed in the engine compartment adjacent the engine for maximum efficiency without causing temperature problems within the engine compartment.

대표청구항 ▼

[ Wherefore, having thus described the present invention, what is claimed is:] [1.] A catalytic converter for controlling pollution from exhaust gases of an internal combustion engine, said converter comprising:a) a catalytic chamber having an inlet connectable to an internal combustion engine to co

[ Wherefore, having thus described the present invention, what is claimed is:] [1.] A catalytic converter for controlling pollution from exhaust gases of an internal combustion engine, said converter comprising:a) a catalytic chamber having an inlet connectable to an internal combustion engine to collect exhaust gases therefrom and an outlet, said chamber constructed of a single layer wall fabricated of a ceramic matrix composite material comprising a polymer-derived ceramic resin with reinforcing fibers dispersed therein;b) a high-temperature resistant open-celled foam disposed within the chamber and situated such that exhaust gases entering said chamber pass in contact with the foam between the inlet and the outlet of the chamber; andc) a catalyst disposed on the foam for pollution treatment of said exhaust gases.