Re: ice age

Posted by Guscha On 2012/8/12 6:54:20
Keith, I am amazed by the technical sophistication of this early prototype after comparing its properties with the AC which was offered as an option 6 years later.

The 1939 version suffered from several problems:

West Peterson and Dave (O_D) will confirm that there were no controls on the instrument panel; the system ran constantly. Turning it off meant to stop the car, lifting the hood and removing a belt. A system for almost $300 has been operated by dirty hands! But the 1933 prototype "...may be turned on or off at will from the instrument board or rear seat..."

Packard (as well as ZIS) mounted the units to the trunk, reducing cargo space. The protptype instead was underfloor mounted.

Because the AC units were rear-mounted with inoutlet tubes behind the rear passenger seat, it (probably) wasn't unusual for condensation to collect above rear-seat passengers. It would then drip down, staining clothes. Meanwhile, little air reached the front seat. Now take a look to the first version that delivered fresh air to the center of the car.

Unlike later systems, the 1939 weather conditioner units didn't pull in any outside air, a problem in an era when many people were smokers. How about the prototype? "...Air is drawn into this system through a concealed inlet, filtered to remove dirt and dust...".



[central theses & formulations:http://blog.nwautos.com/2012/07/chill_out_air_conditioning_has_come_a_long_way.html][/size]

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