What is a hydraulic accumulator?

One of the most important, but possibly least understood components of a hydraulic motion system is not an active component at all. It is component that saves power, makes the system easier to control, and can extend a machine's useful life — the accumulator.

Why are accumulators important for electrohydraulic motion control systems?

Accumulators can conserve energy, make systems easier to control, and extend a machine's useful life, making them especially important for electrohydraulic motion control systems This file type includes high resolution graphics and schematics when applicable.

What is a typical electrohydraulic circuit?

This layout of a typical electrohydraulic circuit shows placement of an accumulator just upstream of the pump. Once a hydraulic system is designed, the system pressure and the load are the major performance variables. For a fixed load, the system pressure directly affects the hydraulic gain.

What are accumulators used for?

Among the least understood system elements, accumulators have many purposes in hydraulic motion control applications. Three of the most important roles are storing energy, keeping the supply pressure constant and reducing shock.

Why do hydraulic accumulators need a larger accumulator?

The larger accumulator is needed for proper accumulator sizing and allows for the changes in gas volume (ΔV) for fast cycling hydraulic operations. However, simple gas laws do not apply when there is little or no heat transferred into or out of the accumulators.

What types of accumulators are available?

HYDRAULICS ARE YOUR HOME: The know-how of our hydraulic specialists extends to all accumulator types, such as bladder accumulators, piston accumulators or diaphragm accumulators and metal bellows accumulators. We will gladly assist you in selecting the right design and in determining the suitable accumulator model.