My name is Park.
I'm currently designing an excavator hydraulic tank.
Hydraulic tank question
I wonder if there is a problem with the design of the two tanks.
The first tank does not work, because half the oil at the back of tank can't get to the inlet. You can slove this to make the 3 holes at the bottem of the tank an extend the returnlines to the back of the tank. for more circulation.
The second tank is ok, only you better also make the distance betrween the suction and return connections larger, by extending the returnlines. inside the tank.