The main business of the company is: bladder accumulator, Diaphragm accumulator, Piston Type Accumulator, oxygen cylinder, CO2 cylinder, gas cylinder, nitrogen gas cylinder, Welcome to inquire and negotiate cooperation by phone.
About    |    Contact

NewsNotification

How Accumulators Work

The accumulators use nitrogen to keep the hydraulic fluid pressurized. When the fluid is pumped into an accumulator the nitrogen (N2) inside the accumulator is compressed. When all the hydraulic fluid is in an accumulator designed for high pressure side of an HHV, the pressure of the nitrogen reaches 5000 pounds per square inch (psi). If empty of fluid, the pressure of the nitrogen is about 2000 psi. The pressure of the nitrogen in the low pressure reservoir will vary from 60 psi when empty to 200 psi when full.

Bladder Accumulator Type:In this type of accumulator hydraulic fluid compresses a nitrogen-filled bladder to create pressure. In HHVs, high pressure accumulators can operate between 2000 and 7000 pounds-per-square inch (psi).
Advantage: Highest efficiency with tests showing 97 percent energy retainment.
Disadvantage:Nitrogen will permeate the foam bladder material over time and need to be periodically recharged.

Piston Accumulator Type:In this type of accumulator, pressure is created when nitrogen is compressed in a thin-walled metal cylinder shell by the hydraulic fluid pushing on a metal piston.
Advantage: Virtually no nitrogen escapes so they will not have to be recharged.
Disadvantage: A bit heavier, and less efficient than the bladder model.

Prev:

Next:

Leave a Reply