Accumulators are devices that store energy in the form of fluid under pressure. Because of their ability to store excess energy and release it when needed, accumulators help improve hydraulic efficiency. Industrial hydraulic accumulators are typically classified as hydro-pneumatic.

What do accumulators store?

An accumulator is a register for short-term, intermediate storage of arithmetic and logic data in a computer's CPU (central processing unit). ... The most elementary use for an accumulator is adding a sequence of numbers.

What do accumulators do?

They are used to maintain pressure, store and recapture energy, reduce pressure peaks, power chassis suspensions, and dampen shock, vibration and pulsations. Under gas pressure, accumulators store a volume of fluid that can be re-fed into the hydraulic system when it is needed.