What is the purpose of hydraulic fluid in a system?

The purpose of hydraulic fluid in a system primarily revolves around two key functions: power transmission and lubrication of components. Hydraulic fluids are designed to transfer force and energy throughout the hydraulic system, allowing for the operation of various equipment and machinery. When the fluid is pressurized, it can move swiftly and effectively to transmit power, enabling the actuation of hydraulic cylinders and motors.

In addition to power transmission, hydraulic fluid also serves to lubricate the internal components of the system. Proper lubrication reduces wear and tear on moving parts, minimizes friction, and helps maintain the efficiency and longevity of hydraulic components. By ensuring smooth operation, hydraulic fluids aid in preventing breakdowns and prolonging the life of the machinery.

While aspects such as cooling and buoyancy are relevant in different contexts, they do not represent the primary functions of hydraulic fluid in hydraulic systems. Cooling may be a secondary benefit of the fluid circulating through the system, but it is not its main purpose.