Oil pumps
Posted: Thu Apr 29, 2021 12:27 pm
So, I thought I would post a picture inside a variable displacement, variable pressure pump, oil goes in on the left and out on the right. You can see the channel on the top fed from a control solenoid valve, the control valve pressure pushes against the spring pressure and changes the pump volume keeping the desired pressure without wasting energy recirculating excess oil. Under high load the oil pressure can be ramped up as required.