Version 15/3/2000 CCD2 - HEATER CORES 3 CORE COMPOSITION Tubes Bended and Stamped End plates Cutted and stamped Flat tubes Stamped Fins Forming tool End caps Stamped Baffle Cutted and stamped Header Stamped Water tank Stamped Sleeves Stamped
Version 15/3/2000 CCD2 - HEATER CORES 4 CIRCUITING U -flow with return tank Cross - counter flow tube design with design integrated water return Set up of laminary boundary layer Heat transfer in the tubes and not in the tank gain in performance Air flow ALL ALUMINUM BRAZED HEATER CORE
Version 15/3/2000 CCD2 - HEATER CORES 5 CIRCUITING
Version 15/3/2000 CCD2 - HEATER CORES 6 Implantation in housing recommendations 1/2 Heater cores position Proximity between electric or electronique components and heater core hot zones should be studied during implantation To avoid contact between passenger and heater core. To be sure that no condensation projection from evaporator on the heater core create particular odor. The better implantation is described on the following sketch (to avoid degazing problem). Liquid inlet AIR Vehicle Z Axis Liquid oulet
Version 15/3/2000 CCD2 - HEATER CORES 7 Implantation in housing recommendations 2/2 Heater core header screwed on housing Housing form to block Heater core in housing Two ribs to maintain Heater core in housing Red colour Housing From NVF specification
Version 15/3/2000 CCD2 - HEATER CORES 8 CONCLUSIONS HEATER CORE EVOLUTION GOES TO: zStronger mechanical strength zIncrease of performance zCompactness zStandardisation zCost reductions This evolution was made possible thanks to the all aluminium brazed technology. zHeat exchange architecture is optimised thanks to flat tube patented design zThis technology, as plate fins evaporator technology, eases heater core standardisation ; zBranch know how includes a well controlled process able to reach large volumes.