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Publication of ES246574A1publicationCriticalpatent/ES246574A1/en
Heat-Exchange Devices With Radiators And Conduit Assemblies
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Abstract
Improvements in tubes for heat exchangers constituted by a tube with a star-shaped section between two coaxial tubes with an outer and inner circular section; the inner tube can be closed to form a core that does not serve for the passage; this composite tube thus offers conduits for the passage of two independent fluids that change their heat through the wall of the tube with a starred section characterized by the arrangement in the conduits offered to the passage of the fluids of surfaces that present undulations in the direction of the axis of the tubes to vary the section of these passages. (Machine-translation by Google Translate, not legally binding)
ES0246574A1958-03-141959-01-14Improvements in tubes for heat exchangers (Machine-translation by Google Translate, not legally binding)
ExpiredES246574A1
(en)
Improvements in manufacturing material of pipes of plastic material and more particularly of polyamide (Machine-translation by Google Translate, not legally binding)