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pressure amplifier idea.
Posted: Tue Jul 15, 2008 3:38 pm
by ramses
I forgot how i got to this, but on the 3rd page of this:
http://www.haskel.com/Files/Haskel-en/G ... lifier.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.
Posted: Tue Jul 15, 2008 3:51 pm
by jackssmirkingrevenge
It's basically a compressed air powered pump, I'm sure it could be replicated with a minimum of custom made parts.
Posted: Tue Jul 15, 2008 4:00 pm
by POLAND_SPUD
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
Posted: Tue Jul 15, 2008 4:22 pm
by Ragnarok
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.
Posted: Wed Jul 16, 2008 7:03 pm
by clide
Posted: Fri Jul 18, 2008 12:25 am
by Gippeto
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.
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.