4000 bar (60,000psi) hand pump possible?

[Airmanator]

Just saw this high pressure hand pump. It can pump to 4000 bar with ease.. So why aren't we using this kind of hand pump on our gun. It would be a piece of cake to pump any guns to 300 bar with no effort at all. Yet are using those hand pump that requires putting all our body weight just to pump to 3000 psi. Now we just need a gun that is rated to 4000 bars.



http://m.youtube.com/watch?v=D00pqdKzBLY

 

[harrymoreland]

1000.000 pumps per fill

 

[biohazardman]

Never mind

 

[Mike_Lenardon]

Hydraulic pump...

 

[cworkman74]

Just use hydraulic fluid instead of air in your gun... should be ok!

 

[Ozarkian]

 


If only air were an incompressible fluid... But it's not, sooooo good luck with that

 

[Motorhead]

Yup .... compressablity issue. Gasses and Liquids act very differently

 

[B7B]

... and you stay fit...

 

[fe7565]

Looks like these are manually-driven and shop-air-compressor driven (60-115psi) hydraulic pumps...meaning they are used for building up oil pressure inside hydraulic systems for testing, etc..

However, I do not see why the hydraulic-principle that is also used in the car-jack (that lifts up 4 tons with about 20 pounds of effort) would not work for a hand PCP pump. One thing I suspect is that the volume of air would be quite small for each stroke, so would require really fast strokes...and eventually the oil inside the hydraulic piston would warm up too fast. 

 

[Chickenthief]

Liquids are in essence non-compressible and wysiwyg (what you see is what you get).

It takes more than 900bar to compress water @ 1% so at least 13kpsi for a 1% compression.

Air is like a big "way fat" spring that will go from zero to "nah" in way more than 5000bar~72.5kpsi.

So unless you have a piston that will go past 5000:1 in compression ratio for every stroke then you're SOL!

That is 5000 gallons of air compressed into a single gallon at every strole to get near the claims in your viceo.

You can go cui and then down to what not but the amount of work is the same for every ciu accumulated.



No can do!!!

 

[GeneT]

Liquids are in essence non-compressible and wysiwyg (what you see is what you get).

It takes more than 900bar to compress water @ 1% so at least 13kpsi for a 1% compression.

Air is like a big "way fat" spring that will go from zero to "nah" in way more than 5000bar~72.5kpsi.

So unless you have a piston that will go past 5000:1 in compression ratio for every stroke then you're SOL!

That is 5000 gallons of air compressed into a single gallon at every strole to get near the claims in your viceo.

You can go cui and then down to what not but the amount of work is the same for every ciu accumulated.



No can do!!!

Well explained! I like your analogies a lot, and the conclusion is inescapable.

GsT