General applications of accumulator

Shanghai Siken Industries Inc.

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Generalpplications of Hydraulic Accumulato

When properly integrated into a hydraulic system, accumulators offer a wide range of practical benefits. Below are the most frequent ways they are used and the advantages they provide.

Typical Uses

• Assisting the main pump Accumulators store energy and release it during peak demand, allowing the primary pump to be smaller and more efficient.

• Compensating for leakage In circuits that must hold pressure for long periods, the accumulator supplies small amounts of fluid to offset internal leakage and maintain stable pressure.

• Handling thermal expansion As fluid temperature rises, the accumulator absorbs the resulting volume increase, preventing excessive pressure build-up.

• Providing emergency power If the pump fails or power is lost, the stored energy can safely move actuators to a secure position or complete critical functions.

• Damping pulsations and absorbing shocks Accumulators smooth out pressure spikes and reduce hydraulic shock, protecting hoses, valves, and other components.

• Maintaining pressure in holding circuits They keep pressure available even when the pump is switched off, which is useful for clamping or load-holding applications.

• Acting as a transfer barrier When two incompatible fluids must share the same circuit, the accumulator separates them while transmitting pressure.

• Dispensing fluid or lubricant Accumulators can deliver a controlled volume of oil or lubricant over time without continuous pump operation.

• Stabilizing pump suction By maintaining a positive pressure at the pump inlet, they help prevent cavitation during start-up and shutdown.

Overall System Benefits

Using accumulators often leads to lower energy consumption, reduced pump wear, quieter operation, and longer component life compared with systems that rely solely on continuous pump pressure.