A single-pump multi-actuator hydraulic system has an amount of coupling loss because the output pressure of the pump adapts the actuator with the highest load and the other actuators with lower loads ...

Experience obtained at Ontario Hydro with the operation of hydraulic units under islanding conditions has demonstrated that the speed control parameters of the unit governors are critical. The ...

Improved technology and higher standards make portable units more worthy than ever. Still, there are plenty of scenarios where a window unit is the way to go.