Is there any hydraulic pump equipment to compress air in the market ?

[Externet]

Hi.

The hydraulic fluid from a pump outlet can compress air to easily 2000psi if fed to an air containing vessel.

Is there such animal in the industry ?

 

-Yes, it is easier to just use an air compressor method-

[John Cuthber]

A lot of the air would dissolve in the oil. Also, unless you carefully dried the air first you would get a lot of water into the oil. Neither of those is a good thing.

[sethoflagos]

How do you replenish the compressed air that you use?

 

 

I guess you could reroute the liquid back to the pump suction to drain it, open another valve to admit new intake air, and you end up with a batching process that approximates to a reciprocating compressor with a liquid piston.

 

Sounds fairly inefficient.

 

Even for an air compressor.

Edited October 21, 2016 by sethoflagos

[sethoflagos]

.....actually, the concept may not be that inefficient.

 

See Van de Ven JD, Li PY, Liquid piston gas compression, Appl Energy (2009), doi:10.1016/ j.apenergy.2008.12.001

[John Cuthber]

You could use a hydraulic motor to drive an ordinary compressor.