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Version 15/3/2000 CCD2 - HEATER CORES
1
TECHNOLOGICAL ENTRIES
1990
1992
1997
2 ROWS MECHANICAL HEATER CORES
4 ROWS HIGH PERFORMANCE MECHANICAL HEATER CORES
MECHANICAL HEATER CORE +PPS WATER TANK
ALL ALUMINUM HEATER CORE
COMPACT ALL ALUMINUM HEATER CORE 2000MARKET TREND
PERFORMANCE FOR HDi ENGINES, BIGGER CARS.
COMPACTNESS
HIGH TEMPERATURES (-40°C +180°C)
MECHANICAL RESISTANCE
RECYCLING
Version 15/3/2000 CCD2 - HEATER CORES
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HEATER CORE COMPONENTS
COMPONENTS PROCESS
MECH. BRAZED MECH. BRAZED
AIR Flat fins Fins Stamping Fin rolls
LIQUID Hair pins Flat tubes Crimping Stamping
JUNCTIONS - - Tubeexpansion
Nocolokbrazing
LIQUIDDISTRIBUTION
Plastic watertank
Aluminumwater tank Molded Stamped
CIRCUITING Crosscounter-flow
Crosscounter-flow - -
TURBULATORS Springs Dimples ThreadForming Stamped
PACKAGING 42mm 42mm /35mm - -
Version 15/3/2000 CCD2 - HEATER CORES
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CORE COMPOSITION
TubesBended andStamped
End platesCuttedand
stamped
Flat tubes
Stamped
FinsForming
tool
End caps
Stamped
BaffleCuttedand stamped
HeaderStamped
Water tank
StampedSleevesStamped
Version 15/3/2000 CCD2 - HEATER CORES
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CIRCUITING
U -flow withreturn tank
Cross - counter flow tube design with design integrated water return
Set up of laminaryboundary 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
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CIRCUITING
END / END Version SIDE / SIDE Version TOP / TOP
NOT RECOMMENDED
Version 15/3/2000 CCD2 - HEATER CORES
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Implantation in housing recommendations 1/2
Heater cores positionProximity between electric or electronique components and heater core hot zones should be studied during implantationTo 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
VehicleZ Axis
Liquid oulet
Heater cores positionHeater cores positionProximity between electric or electronic components and heater core hot zones should be avoided No contact between passenger foot and heater core.No condensation projection from evaporator to the heater to prevent particular odor .The best position is described on the following sketch (esp. to avoid degazing problem).
Liquid inlet
AIR
VehicleZ Axis
Liquid outlet
Version 15/3/2000 CCD2 - HEATER CORES
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Implantation in housing recommendations 2/2
Heater core headerscrewed on housing
Housing form to blockHeater core in housing
Two ribs to maintainHeater core in housing
Red colourHousing
From NVF 10010 specification
Version 15/3/2000 CCD2 - HEATER CORES
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CONCLUSIONS
HEATER CORE EVOLUTION GOES TO:Stronger mechanical strengthIncrease of performanceCompactnessStandardisationCost reductions
This evolution was made possible thanks to the all aluminium brazed technology.
Heat exchange architecture is optimised thanks to flat tube patented design
This technology, as plate fins evaporator technology, eases heater core standardisation ;
Branch know how includes a well controlled process able to reach large volumes.
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