Which component in a hydraulic system stores energy in the form of pressurized gas?

The accumulator is a key component in a hydraulic system that serves the specific purpose of storing energy in the form of pressurized gas. It operates by using a gas, typically nitrogen, which is compressed when hydraulic fluid is added to the accumulator. This pressurization allows the accumulator to store energy, which can then be released quickly to provide additional hydraulic power when needed, such as during peak demand or to supplement the flow of the hydraulic fluid from the pump.

The accumulator plays an essential role in maintaining system pressure, compensating for fluctuations in hydraulic fluid demand, and providing immediate hydraulic flow for operation. This ensures that the system remains efficient and responsive under varying operational conditions.

The other components, while important in a hydraulic system, do not serve this energy storage function in the same way. For example, actuators convert hydraulic energy into mechanical movement, pumps move hydraulic fluid through the system, and reservoirs store hydraulic fluid but do not compress gas to store energy.