What effect does a hydraulic accumulator have on pressure surges?

A hydraulic accumulator serves to dampen pressure surges in a hydraulic system. When a sudden change in flow occurs—such as when a valve closes or an actuating device is activated—the accumulator, which is typically a gas-filled chamber, absorbs the excess fluid. This action mitigates the rapid changes in pressure that could otherwise lead to pressure surges.

By cushioning these surges, the accumulator helps maintain a more stable pressure throughout the hydraulic circuit. This stabilization not only protects system components from potential damage caused by sudden pressure spikes but also enhances overall system performance by ensuring smoother operation. Therefore, the ability of the accumulator to absorb and release fluid as needed is crucial in controlling pressure fluctuations effectively.