Bladder Accumulators

The hydro-pneumatic accumulator stores energy in the form of pressurized hydraulic fluid and releases to the hydraulic system when demanded either immediately or intermittently. A separator between the compressible dry inert gas such as nitrogen and incompressible hydraulic fluid allows the stored fluid to be discharged per system requirements. The most common types of accumulators are Bladder type which uses bladder as a separator to store gas, Piston type which uses piston as a separator between the gas and fluid chamber and Diaphragm type which uses a diaphragm as a gas separator from Fluid chamber. All three types of accumulators have their own advantages and limitations which should be considered when selecting for an application.