This weekend I had at the house a Vermeer Stump Grinder SC362. I was looking at the exposed hydraulics while the operator was taking a break. There was a 2-section gear pump. There were 4 functions: 1 steering cyl, 2 pivoting cyls, 1 up-down cyl, and I think 1 hydraulic motor for driving...
These questions are specifically for AC Electric Induction Motors that we might spec to run an HPU. The questions are about what happens as we go beyond Service Factor HP & Amps.
One example of the kind of motor I'm referring to...
Please see the simplified hydraulic circuit below. Many components not shown for simplicity. For now, this is just a thinking exercise and not an actual situation.
Cylinder retracting. Gear pump putting out 10 GPM pump flow to rod end. 10 GPM is its absolute maximum flowrate at motor...
I have a Ridgid MEGAMax Power Base:
I have found a way to make this base power-on without having one of their 3 attachment heads attached (a project in itself!). I will be using it to drive a hydraulic pump. Pump size to be chosen based on Power Base performance. Therefore, I need to know...
Think about a pressure compensated variable displacement pump. The pump discharge has reached the compensator setting, the pump has fully compensated, and there is no flow going out to the system, only case drain flow. The pump has de-stroked and is in stand-by. Since there is no useful work...
