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1. Reduction of Installed Power
Using an accumulator as an energy storage device
effectively reduces the required flow rate capacity of
the hydraulic pump. This result in a reduction of the
installed power.
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2. Energy and Safety
The energy stored in an accumulator used to avoid
the accidental interruption of the working of the
power generator by guaranteeing continuity of the
safety function for a specific time.
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3. Emergency and safety
An accumulator which is kept constantly under
pressure allows for instant and/or repetitive
operations as required (baking, opening of door etc.).
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4. Maintaining Pressure
When a holding pressure for a given time is required
an accumulator will maintain the pressure between a
defined high and low level
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5. Dampening of pulsation and reduction of noise
An accumulator on account of the low inertia of its
bladder can dampen the pulsations generated by the
pump.
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6. Thermal Expansion
The pressure differences caused by thermal expansion
in a closed hydraulic circuit are absorbed by fitting
an accumulator.
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7. Suspension of heavy vehicles
On maintenance machinery, transport platforms etc., an
accumulator which is connected to the suspension recipient
acts as an adjustable shock absorber.
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8. Shock absorber
An accumulator connected to one or more jacks absorbs
and deadens the impact of a moving system against an
obstacle.
(Example : Impact test benches, overhead cranes,
non-stop hydraulic ploughs).
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9. Transfer barrier accumulator
The transfer system makes it possible to transmit
completely a pressure caused by a hydraulic or
pneumatic system to another circuit containing a
different fluid without danger of mixing.
Gas/liquid transfer : As a reserve of energy, when the
effective volume is considerable, the use of transfer
barrier accumulators make it possible to restore up to
80% of the rated capacity of the accumulators. This
additional capacity can be used with equal effective volumes,
to reduce the maximum pressure and therefore the
installed power.
Liquid/liquid transfer : Example : to ensure the
lubricating of the fluid bearings of a compressor with
perfectly clean oil in the event of stoppage of the
pump, with the energy being provided by the
contaminated fluid of the circuit
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