Working principle diagram of balance cylinder accumulator

How does a gas accumulator work?

A gas accumulator works by using a freely floating piston in a cylinder. The gas chamber is first charged with nitrogen under a pre-determined pressure, which moves the piston down. Then, hydraulic fluid can be pumped into the hydraulic fluid port.

How does a hydraulic accumulator work?

If the system requires a small flow rate, the accumulator stores the excess flow from the hydraulic pump; if the system requires a large flow rate for a short period, the accumulator releases the stored hydraulic fluid to supply oil to the system along with the hydraulic pump.

How does a cylinder cycle work?

As the cylinder cycles, the accumulators supply fluid at a rate set by the flow control. Pump flow adds to accumulator flow to set the required cycle time. Cylinder cycling could be made faster than specified by increasing outlet flow from the accumulator.

What is hydraulic accumulator capacity?

The maximum amount of hydraulic energy stored by any hydraulic accumulator is known as the capacity of the accumulator. A simple hydraulic accumulator consists of a cylinder with inlet and outlet ports for the hydraulic fluid, inlet are attached with the pump where as outlet is connected with the operational machine.

What is the working principle of an accumulator?

The working principle of an accumulator is based on the fact that fluids are virtually incompressible. This means that when a fluid is subjected to pressure, it cannot easily be compressed or reduced in volume. When the accumulator is not being used, the fluid is stored in the reservoir, at a specific pressure.

What are the parts of an accumulator?

As shown in Figure 1, the accumulator is basically composed of four parts: the shell, the piston, high-purity nitrogen gas (or possibly a spring) above the piston, and the working oil connected to the system below the piston. The working process can be divided into two stages: energy storage and release.