What is the primary function of a hydraulic reservoir?

The primary function of a hydraulic reservoir is to store hydraulic fluid. In hydraulic systems, fluid plays a critical role in transmitting power, and having a dedicated reservoir allows for the management of sufficient fluid supply for the entire system. It acts as a container that holds the hydraulic fluid when it's not in use, ensuring that there is enough fluid available for operational demands.

Additionally, a hydraulic reservoir helps in maintaining a constant volume of fluid in the system, compensating for fluctuations due to changes in temperature or pressure, and it allows for the fluid to be properly aerated and cooled. While reservoirs can help with other functions such as cooling the fluid and providing a location for filtration to occur, the core purpose revolves around storage of the hydraulic fluid necessary for the operation of hydraulic systems.