Here is a pdf of the Hayden Oil Cooler Catalog which includes some of
    the more efficient cross flow radiators. It has 142 pages.

    http://www.haydenauto.com/assets/2003%20ImperialCat.pdf

    Joel

    I did not see any counter cross flow heat exchangers in
    that catalog. All I saw was the old tube and fin designs which
    are not as efficient compared to most radiators.
    Almost all heat exchanger are cross flow.

    Hot fluid comes in one end of the serpentine pipe so
    the delta T varies from side to side as well as top to
    bottom. I will say they seem to be very reliable and should
    accept high oil pressures.

    Paul Lamar

    Paul,

    I'm not quite sure what you are referring to as "Counter cross flow
    heat exchangers".  The catalog shows both serpentine and cross flow
    oil coolers.  The oil coolers all appear to  use tubing, probably
    because the geometry minimizes distortion at higher pressures.

    Joel

This is a counter cross flow heat exchanger.
Counter cross flow refers to the fact that the heat
exchanger is divided into sections (called sheets) that
are plumbed in series. Cooler water is  passed
through the front sheet that is closest to the cool air
and the hottest water is passed through the back sheet.
The back sheet gets the air that has been warmed by
passing through the front sheet.


Paul Lamar ...No rotor no motor.

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