What is hydraulic accumulator?What is working principle of hydraulic accumulator?Use of hydraulic accumulator.


It is to store energy and provide back up during system failure . It can be called as capacitance of the system.

  • Shock suppression.
  • Pressure ripple elimination.
  • Compensate leakage.
  • Energy source.

Working principle

Accumulator is a fluid chamber in which the fluid is stored against dynamic force.This fluid is used when system failed or there is fluid leakage.

The dynamic force may be by spring,compressed gas,weight.

3 Types of Accumulator

  1. Hydro pneumatic.
    • Gas charged
      • No separator type
      • Diaphragm or bladder type
    • Piston accumulator
  2. Spring loaded.
  3. Dead weight type.

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