Re: Modern AC Compressor in a 6-Volt Car

Posted by HH56 On 2014/2/3 19:55:55

I think Packard was the odd one out with no clutch. The Frigidaire AC basic unit was bought from GM and also used in Cadillacs. In 53-54 Packard had the solid drive wheel and the identical Cadillac compressor -- at least in 54 -- had a large solenoid mounted on top which operated a mechanical clutch. Cadillac's clutch wasn't for temp control -- Like most mfgs with clutches then, it only turned the compressor on and off when AC was on or off. Cadillac's temp was also done by electric valve gas bypass.

Might be an interesting study to see who did and did not have clutches. Too bad info for early AC units is so scarce.