Airbag accumulator stamping ratio

How does accumulator volume affect airbag regeneration?

The bigger accumulator has large energy storage capacity and the nal pressure of the airbag decreases with the accumulator volume increasing, which decreases from 30 MPa to 14MPa with the accumulator vol- ume increasing from 10L to 30L. So, the regeneration e- ciency decreases with the accumulator volume increasing.

What size bladder accumulator do I Need?

Size (gallon) Pressure Ratings – 3000 and 5000 psi bladder accumulators are rated at minimum 4 to 1 design factors as standard. 4000 and 6600 psi (ASME Appendix 22) bladder accumulators are available as an option at minimum 3 to 1 design factors. For pressures over 6600 psi, consult the factory.

What is the ASME code for an accumulator?

All BA Series Accumulators conform to ASME Boiler and Pressure Vessel Code Section VIII, Division 1 and the European Pressure Equipment Directive 2014/68/EU (formerly 97/23/EC). Many of the accumulators in the BA Series are also Australian and Canadian registered.

What psi should a bladder accumulator be rated?

Pressure Ratings – 3000 and 5000 psi bladder accumulators are rated at minimum 4 to 1 design factors as standard. 4000 and 6600 psi (ASME Appendix 22) bladder accumulators are available as an option at minimum 3 to 1 design factors. For pressures over 6600 psi, consult the factory. Max.

What happens if the accumulator is empty?

The accumulator is empty, and neither gas nor hydraulic sides are pressurized. The accumulator is precharged. The hydraulic system is pressurized. As system pressure exceeds gas precharge hydraulic pressure fluid flows into the accumulator. System pressure peaks. The accumulator is filled with fluid to its design capacity.

How does precharge pressure affect accumulator performance?

Precharge pressure forces fluid from the accumulator into the system. Minimum system pressure is reached. The accumulator has discharged its design maximum volume of fluid back into the system. When selecting an accumulator for a particular application, both hydraulic system and accumulator performance criteria should be considered.