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Heat exchanger with a block of metallic fibers forming an electrical resistance to heat catalytic converter used in motor vehicle, uses metal fibers welded by high current discharge to provide electrically powered heat exchange
Heat exchanger with a block of metallic fibers forming an electrical resistance to heat catalytic converter used in motor vehicle, uses metal fibers welded by high current discharge to provide electrically powered heat exchange
The heat exchanger (10) has an enclosure (12) traversed by the fluid, and has inside the enclosure an exchange element (14) made up of a block (20) of metal fibers, compacted to a determined porosity. The fibers are welded one to the other by a high current electrical discharge, controlled to provide a known concentration of welding points.
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