Jeff-oh

Well-known Member
This is in reply to a question you asked in a post from last week. The post was in reference to an onld TO30 ad the touted Fergusons SSC. Suction Side Control. Time to OHH and Ahh.

This is mearly the fact that the Ferguson system control valve was on the suction side of the pump, as opposed to the pressure side. Big deal you say... Well back in 1952 that was the linch pin to Ferguson Patenet infringement lawsuit against Ford. And it was the only item in the patenet that Ford was found guilty of infringing on. The 8N had the control valve on the suction side and the NAA was forced to put it on the pressure side.

Now the operational difference may be relativly minor. Apparently SSC is less likely to produce bubbles/froth in the oil and thus less likely to cavatate and less likely to loose hydraulic power due to gas compression in the oil.

Of course during the lawsuit and after the marketing "ad Men" had to highlight any differences as the end all and make all.

Jeff
Fergie Ad post
 
Having made my living in high performance hydraulics, it seems to me that controlling the suction side is very poor practice, and causes the problems you mention rather than mitigates them. The question becomes, what do they use today, after the patents have expired?
Also, Ford had to stop using radius rods that moved out with the extension of front axles. But after the patent expired they went back to the former design in 1964, if I remember.
 

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