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Accumulator manufacturer -- Nakamura Koki Co., Ltd. | What is an accumulator?

Accumulator manufacturer -- Nakamura Koki Co., Ltd. | Precautions for safe use of accumulators

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Accumulator manufacturer -- Nakamura Koki Co., Ltd. | Selecting an Accumulator

 

Accumulator manufacturer -- Nakamura Koki Co., Ltd. | What is an accumulator?

 

Accumulator is hydraulic device that stores the pressure energy of liquid (oil, water, etc.) by converting it into pressure energy of gas (nitrogen gas).

Using a car as an analogy, an accumulator would correspond to the battery.

 

Liquids have characteristic that their volume will not change by pressurizing. (Incompressible fluid).

 

On the other hand, gases have characteristic that their volume will change by pressurizing. (Compressible fluid).

 

By charging liquid into a vessel filled with gases, those gases are compressed and liquids of a volume equivalent to the pushing force (pressure) enter the vessel.

 

When the liquid pressure is depressurized, liquid inside the vessel gushes out by the gas expansion force.

 

This is the basic principle of an accumulator, which is illustrated below.

 

Accumulator manufacturer -- Nakamura Koki Co., Ltd. | The working principle of an accumulator

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