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January 23, 2024 at 10:26 am
#284267
Several years ago I studied the Oliver fuel pump till my brain hurt. Still hurts but I think the check valves are the holes and diaphragm in the slots at the ends. Think outside the box. The diaphragm probably has to be just right in thickness and stiffness. That’s all I remember just now.
Frank….maybe reading the text of the patent is what made your head hurt? Somewhere amongst all that….there might be an explanation of how it works. Maybe..