Compressed air engine

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Gun Freak
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Still more complex than my original idea :lol:
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Lockednloaded
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Haha just put a barrel port on jsr's design and you've got yourself an engine with a built in pneumatic machine gun :lol: Maybe you could build a pneumatic tank!
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POLAND_SPUD
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OMG just get an air cylinder and hook it up to a 3 way valve
(or a double acting cylinder & 5 way valve)


If you're uberambitious then convert a 2 stroke chainsaw engine to LPG or something like that :D
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ramses
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I still say that a hammer valve would be infinitely better. (barring rotary valves of course). :D
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Gun Freak
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Haha just put a barrel port on jsr's design and you've got yourself an engine with a built in pneumatic machine gun Maybe you could build a pneumatic tank!
That would be sick :D

Poland, a cylinder and a three way would be expensive!
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POLAND_SPUD
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Poland, a cylinder and a three way would be expensive
Cheaper than a custom machined compressed air engine. If you're such a cheap skate then get a ready made one from some air powered tool
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Gun Freak
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I'm not custom machining one, I'm using brass tubing from the hardware store that is like 2 dollars a stick.
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jackssmirkingrevenge
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I've said it for a long time, such a motor with high pressure and a narrow cylinder to prevent pressure loss coupled with a set of rotating barrels driven by the crank and fed by the motor exhaust = self powered pneumatic gatling :D
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hectmarr wrote:You have to make many weapons, because this field is long and short life
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jackssmirkingrevenge
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Made an an animation ;)

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hectmarr wrote:You have to make many weapons, because this field is long and short life
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Gun Freak
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I couldn't help but laugh while watching it :D
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Insomniac
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JSR, how would a narrow cylinder prevent pressure loss? Unless, you have an enlarged area above the cylinder to increase the air used per stroke, a narrower cylinder is going to start with less air than a wider one, and result in the same pressure loss...
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jackssmirkingrevenge
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Insomniac wrote:JSR, how would a narrow cylinder prevent pressure loss? Unless, you have an enlarged area above the cylinder to increase the air used per stroke, a narrower cylinder is going to start with less air than a wider one, and result in the same pressure loss...
Fair point, what we need to reduce pressure loss is a separate reservoir...
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hectmarr wrote:You have to make many weapons, because this field is long and short life
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POLAND_SPUD
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not bad but you'd still need a starting motor or some sort of mechanism that does that
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saefroch
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POLAND_SPUD wrote:not bad but you'd still need a starting motor or some sort of mechanism that does that
A hand?
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jackssmirkingrevenge
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saefroch wrote:A hand?
How about shouting "contact!" and giving the barrels a spin :D

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hectmarr wrote:You have to make many weapons, because this field is long and short life
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