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pressure amplifier idea.

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pressure amplifier idea.

Unread postAuthor: ramses » Tue Jul 15, 2008 3:38 pm

I forgot how i got to this, but on the 3rd page of this: http://www.haskel.com/Files/Haskel-en/Global/US-en/Air_Pressure_Amplifier.pdfit explains how they work. for those of you who don't want to read, it converts pressure into mechanical force, and applies this to a smaller area, increasing the psi. output pressure is the product of the area of the plates and the input pressure. I was wondering if this could be duplicated at low cost with near off the shelf parts. The only way i can think of involves solenoid valves, a 555 timer circuit, a flip flop, a check valve and switching transistors. So much for KISS.

I welcome any input.
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Unread postAuthor: jackssmirkingrevenge » Tue Jul 15, 2008 3:51 pm

It's basically a compressed air powered pump, I'm sure it could be replicated with a minimum of custom made parts.
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Unread postAuthor: POLAND_SPUD » Tue Jul 15, 2008 4:00 pm

you could even do it without solenoid valves - the cylinder/air ram would close the inlet valve and open the exhaust when it completes its stroke

this thing is basically an air powered stirrup pump... but i suspect that there would be 3 main problems:
1. it would have to cycle fast to give decent volume of air
2. there would be some problems with overheating
3. wear on o-rings

but if you want to build it do it
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Unread postAuthor: Ragnarok » Tue Jul 15, 2008 4:22 pm

I'll have to do something like this at some point in the near future, although because I prefer all mechanical systems if possible, with a minimum of electromechanical conversions, I've designed it to work on a mechanical valve/regulator mechanism.
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Unread postAuthor: clide » Wed Jul 16, 2008 7:03 pm

This thread may also be of interest to you http://www.spudfiles.com/forums/pressur ... 14627.html
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Unread postAuthor: Gippeto » Fri Jul 18, 2008 12:25 am

jackssmirkingrevenge wrote:It's basically a compressed air powered pump, I'm sure it could be replicated with a minimum of custom made parts.

I couldn't agree more. :wink:

Simplified actuation:

http://www.fmctechnologies.com/FluidCon ... alves.aspx

Valve switches between "pressure" and "vent" to "power" cylinder.

Check valves in the head of the high pressure cylinder allow incoming pre-compressed air to re-set piston assembly and switching valve.

Cycle rate to be controlled with needle valves on "supply" air lines.
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