Hydraulic System Surges
Hydraulic System Surges
(OP)
I'm a novice when it comes to hydraulics so this may be a silly question but what are some possible causes for a hydraulic system to surge? I have flow coming into a main motor, then taking the exhaust from that motor and reducing the flow with a priority flow divider and sending that regulated flow to a fan motor. We have taken the fan motor out of the loop and the system operates with no problem so it has something to do with the fan motor. All specs are more than adequate. I don't know what could be wrong with the fan motor to cause the system to surge.





RE: Hydraulic System Surges
RE: Hydraulic System Surges
RE: Hydraulic System Surges
I have put spacers to reduce spool movement and eliminate hunting but this is a trial and error situation.
Your best bet would be to use a motor type flow divider with unequal flow sections. This type flow divider also waste's less energy so the system runs cooler. It only works correctly if flow is constant.
Bud Trinkel
Certified Fluid Power Engineer
HYDRA-PNEU CONSULTING, INC.
812-853-3234
fluidpower1@hotmail.com