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has it been designed? high pressure hydraulic fluid reservoir.

has it been designed? high pressure hydraulic fluid reservoir.

has it been designed? high pressure hydraulic fluid reservoir.

(OP)
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.

RE: has it been designed? high pressure hydraulic fluid reservoir.

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.

RE: has it been designed? high pressure hydraulic fluid reservoir.

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

RE: has it been designed? high pressure hydraulic fluid reservoir.


 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

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