What is the function of hydraulic actuators?

Hydraulic actuators serve the primary function of converting hydraulic energy into mechanical energy. When hydraulic fluid under pressure flows into the actuator, it creates movement in mechanical components, such as pistons or rods. This translation of energy is critical in various applications, such as operating heavy machinery, controlling flight surfaces in aviation, or enabling movement in robotic systems. The ability to harness the force generated by pressurized fluids enables precise control and high torque output, making hydraulic actuators essential in environments requiring reliable and powerful motion control.

The other options do not capture the primary role of hydraulic actuators. While storing energy, regulating fluid flow, and increasing pressure can all play important roles in hydraulic systems, they pertain to different components or functions within the hydraulic circuit and are not the core function of an actuator itself.