PIPING SYSTEM FOR HEATING FLUID MEDIUM IN MODULE BIMETALLIC RADIATORS (VERSIONS) Russian patent published in 2002 - IPC

FIELD: heat-transfer technique; heating of buildings. SUBSTANCE: aluminum module housing is molded in built-up mold; rectilinear steel pipe line is built in this housing; this pipe line is vertical part of piping system; this pipe line is additionally provided with two parallel pipe lines which form horizontal part of module and have the same form. Pipe line of steel vertical part has end parts whose shape corresponds to shape of walls of parallel pipe lines for protection of walls of aluminum alloy pipe lines against corrosion suppressing simultaneously turbulence at neck. EFFECT: reduced expenses for manufacture of radiators. 4 cl, 17 dwg