has it been designed? high pressure hydraulic fluid reservoir.

[tha89sx]

the reservoir that i picture is small in volume (.200 litre) but will hold a 'non-compressible' fluid at a given pressure( 25000-30000 psi)


would it be possible to use gas as a spring to place a force on teh fluid when the fluid pump is not creating pressure. in order to reduce the pressure spikes or a gear pump. and also to aid in the reduction of pressure loss when there is a large increase in the amount of fluid being used up. also conversely reduce the pressure spike when a large decrease in fluid is called for.

 

[budt]

This company has accumulaors op to 20,000 PSI

http://www.haskel.com/PDF/Catalogs/High Pressure Valve & System Component.pdf

Bud Trinkel, Fluid Power Consultant
HYDRA-PNEU CONSULTING

 

[JStephen]

With the gas in contact with the fluid at high pressure, do you have problems with the gas dissolving into the liquid? I'm thinking like the carbon dioxide in a coke.

 

[budt]

It was not a problem on the Diecast Machines I first saw a non-separated accumulator on. However, they only operated at 2,500 PSI.

Haskel should be able to advise. The gas is usually Dry Nitrogen.


Bud Trinkel, Fluid Power Consultant
HYDRA-PNEU CONSULTING

 

[chief]

Normal set up for an accumulator is to have a rubber lung in the casing. The lung is charged with Nitrogen via A Schafer valve and there is no physical contact between the gas and the hydraulic fluid.

Offshore Engineering&Design