Abstract A catalytic converter to be used in exhaust systems of internal combustion engines for emission control purposes. The converter comprises an assembly including pairs of circular and generally frusto-conical or funnel shaped and concentric metal housings or casings forming a container surrounding a circularly cylindrical honeycomb core catalytic member of a material having high temperature durability and a low coefficient of thermal expansion, such as a refractory ceramic material and the container is designed to compensate for the differences in thermal expansion of the material of the converter and the metal material of the assembly of the housings or casings of the container. Thermal insulation material may be provided between the walls of the concentric housings or casings.
A catalytic converter in accordance with claim 1 and in which said core member includes a substantially hermetic band surrounding the outer periphery of such member between said beveled brims of the circular ends of the member.
Claim 2
Dependent Claim
37 words
A catalytic converter in accordance with claim 1 and in which said core member includes a substantially hermetic band surrounding the outer periphery of such member including said beveled brims of the circular ends of the member.
Claim 3
Dependent Claim
35 words
A catalytic converter in accordance with claim 1 and in which said annular space provided between said outer casings and said inner casings and said core member is filled with a high temperature insulation material.
Claim 4
Dependent Claim
35 words
A catalytic converter in accordance with claim 2 and in which said annular space provided between said outer casings and said inner casings and said core member is filled with a high temperature insulation material.
Claim 5
Dependent Claim
35 words
A catalytic converter in accordance with claim 3 and in which said annular space provided between said outer casings and said inner casings and said core member is filled with a high temperature insulation material.