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PackardDon wrote:
Who had what was called Flow-Through or maybe Flo-Through Ventilation? I know it wasn't Packard so I hope it's not too out of place to ask it here but the subject just came up and not remembering is driving me crazy(ier)! I seem to recall it was Nash but not sure.
As I recall, it was Ford that had the purpose-built, designed in system they called "Silent-Flow-Ventilation" which was introduced on 1964 Thunderbird. They included an interior air exhaust vent below the rear backlight window (look for louvers at the base of the glass). This system was a resurrection of an idea introduced on the Ford Mystere concept car.
It was eventually referred to (perhaps generically) as "flow-through ventilation" or even "flo-through ventilation." GM followed around 1969 with "Astro-Ventilation" when they deleted vent windows and began installing side vents (same as the A/C/ vents without the A/C) in the ends of the instrument panel.
Mercury Turnpike Cruiser of 1957 featured a flow-through ventilation via inlet vents at the top corners of the windshield and exit at the near-vertical power-retractable rear window. The air vents on the windshield seemed like a good idea but they worked poorly and let as much rain in as air.
However, the original intent of Packard Balboa was to have a flow-through ventilation that did not require the side windows to be lowered. Ventilation would enter the cabin via the usual vents and then exit via a partially-lowered rear window. Of course the power rear window mechanism never got installed, despite the fact that Creative Industries had one laid out.
Finally Packard had a working system on the Predictor. This time, the rear window actually lowered and the system was workable with the power hatches closed.
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