Core body for catalytic converter
AssigneeW. R. Grace & Co.-Conn.
InventorWilliam A. Whittenberger
Life of this patent
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Abstract
The disclosure relates to an improved catalytic converter core which is characterized by a plurality of spaced rigid centrally located pins about which are wrapped a plurality of corrugated thin metal strips. The configuration of the resulting core is determined by the number of centrally located pins, for example, with two pins the configuration is oval. Electric power may be selectively applied to effect heating of the core. Catalyst may be applied to the surface or surfaces of the corrugated thin metal strips to aid in converting undesirable materials in a gas stream to more acceptable materials.
Claims35
An oval thin metal honeycomb core body for a catalytic converter comprising in combination:
- (a) a plurality of spaced rigid metal pins;
- (b) a plurality of groups of corrugated thin metal strips each having a metal connector plate located at the distal extremity thereof and said strips extending in parallel between said rigid metal pins and said metal connector plates;
- (c) said groups of corrugated thin metal strips being electrically isolated from each other and being bent in the same circular direction about a center intermediate said rigid metal pins;
- (d) the connector plates of each group of corrugated thin metal strips each defining a retaining shell portion about said core body in which the connector plates of each group of corrugated thin metal strips are connected together, said retaining shell portions being electrically isolated from one another;
- and (e) means for connecting said corrugated thin metal strips to a voltage source whereby an electrical current may flow through the corrugated thin metal strips selectively to effect heating thereof.
An oval thin metal honeycomb body for a catalytic converter comprising in combination (a) a plurality of spaced pairs of closely spaced metal pins;
- (b) a plurality of groups of corrugated thin metal strips each of said metal strips having a flattened portion located between the ends of each of said thin metal strips and a metal connector plate located at each end of each of said corrugated thin metal strips;
- (c) groups of said corrugated thin metal strips being located at their flattened portions between each of said closely spaced rigid metal pins and means for insulating said groups from said rigid metal pins without insulating said corrugated thin metal strips in a given group from each other;
- said groups being bent, respectively, in the same circular direction about a center intermediate said spaced pairs of closely spaced rigid metal pins;
- (e) said connector plates defining at least a pair of retaining shell portions about said core body in which the retaining shell portions are electrically isolated from one another;
- and (f) means for connecting said electrically isolated retaining shell portions are electrically isolated from one another;
- and (f) means for connecting said electrically isolated retaining shell portions to a voltage source whereby current may flow through the corrugated thin metal strips selectively to effect heating of the core body.
Dependencies are inferred from the claim text.