Electrically heatable catalytic converter insert
First Claim
1. An electrically heatable catalytic converter insert for insertion in an exhaust line from an internal combustion engine comprising a catalyst bearing corrugated thin metal polycellular honeycomb monolith dimensioned and having a circular configuration for placement within an exhaust line, said insert having a metallic central core;
- (b) at least one corrugated thin metal strip wrapped about said central core and having one end thereof in electrical contact therewith;
(c) a peripheral metal housing in electrical contact with the other end of said at least one corrugated thin metal strip;
(d) a first metallic terminal member attached to said central core and having an annular configuration, and having lug means projecting from the outer periphery for connecting to one pole of a voltage source;
(e) a second metallic terminal member having a central opening and having lug means projecting from the outer periphery thereof for connecting to the other pole of the voltage source;
said members (d) and (e) being electrically isolated from each other, and at least one of said members (d) and (e) being electrically isolated from said peripheral housing.
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Accused Products
Abstract
There is provided an electrically heatable catalytic converter insert for insertion in a current internal combustion engine exhaust line. The device described includes a housing and a polycellular corrugated thin metal foil monolith disposed therein, and having a central core. The monolith includes a noble metal catalyst disposed of the inner surface of the cells. There are also provided a positive terminal and a negative terminal for attachment to a voltage source. The positive terminal is attached to the central core, and the negative terminal is attached to the housing, the foil providing a heatable resistance member enabling heating of the device by electrical power. The positive and negative terminals are electrically insulated from each other and each has a radially projecting arm for attachment of cables from a voltage source.
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Citations
12 Claims
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1. An electrically heatable catalytic converter insert for insertion in an exhaust line from an internal combustion engine comprising a catalyst bearing corrugated thin metal polycellular honeycomb monolith dimensioned and having a circular configuration for placement within an exhaust line, said insert having a metallic central core;
- (b) at least one corrugated thin metal strip wrapped about said central core and having one end thereof in electrical contact therewith;
(c) a peripheral metal housing in electrical contact with the other end of said at least one corrugated thin metal strip;
(d) a first metallic terminal member attached to said central core and having an annular configuration, and having lug means projecting from the outer periphery for connecting to one pole of a voltage source;
(e) a second metallic terminal member having a central opening and having lug means projecting from the outer periphery thereof for connecting to the other pole of the voltage source;
said members (d) and (e) being electrically isolated from each other, and at least one of said members (d) and (e) being electrically isolated from said peripheral housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- (b) at least one corrugated thin metal strip wrapped about said central core and having one end thereof in electrical contact therewith;
Specification