Did I just create an MQ Mag Valve?

[Hilltop Customs]

I'm liking your original idea, at least that's what my idea was. I don't think you'd need an on/off, the ram controls air flow through the valve, kinda like a reversed ram/poppit type valve. I think that relying on "airflow restrictions" to control the velocity would get aggravating and be a PITA to design, mainly because it could be changed by things like temperature, pressure, and the like.

Well by airflow restrictions i just mean the port size going from the reg to the dump chamber. I didnt really mean to use the restrictions to control velocity, just the recharge of the dump chamber. Having a restricted port from the reg to the dump allows more control of the volume of air for each shot......but too restricted ends up with slow recharge and limited ROF.

thejere I think I know what your getting at mentioning the ULE trigger design, but I'm not sure if it will work quite the way your thinking. The ULE trigger relys on equal pressure on both sides of the "head".... where here, the larger "head" would have to be used to seal the power tube, and be exposed to large pressure differentials. If you used a small head(where it seals to the powertube) would create flow problems. let us know what you were thinking.


Anyone happen to know the size of the stock AGD dump chamber and what pressure it opperates at? If possible it would be nice to keep it the same so the Lvl x bolt and springs would still opperate about the same.....although flows through the on/off(powertube seal or whatever you want to call it) could have a large impact.

I had another idea about the placement of the ram, and seal but thats going to have to wait till tonite. I think it will allow for a smaller ram, and maybe the use of a 3 way instead of a 4way....




As for a retrofit to standard mag valves.....i wonder if anyones ever removed the sear and on/off(i mean o-rings to allow for straight through flow) and used a ram to actuate a lvlX bolt. It would have to be a decent strenght ram, because with the constant flow through the on/off the bolt would still have force pushing it forward after the ball is fired. But, if the combination ram/spring pushed the bolt back onto the powertube, it could easily hold it back because of the lvlX low initial force. If set up properly the lvlX should still even be effective.....plus it would look cool having a ram on the side of a mag lol (really the ram could be built into the rail since there is no need for a sear or on/off anymore.....dunnoo if it could work around the grip scrwe tho)


someone stop me, I have work to do lol

[Hilltop Customs]

i forgot to include.....for an easy switch between mechanical and electroic....an on/off assembly(for the filling of the dump chamber) is required. If its solely electronic, then the volume of the dump can be controlled by the dwell of the ram.

Really, if required, the ram that opens the dump chamber should also be able to shut off the flow from the reg to the dump chamber.

[thejere]

thejere I think I know what your getting at mentioning the ULE trigger design, but I'm not sure if it will work quite the way your thinking. The ULE trigger relys on equal pressure on both sides of the "head".... where here, the larger "head" would have to be used to seal the power tube, and be exposed to large pressure differentials. If you used a small head(where it seals to the powertube) would create flow problems. let us know what you were thinking.

I more suggested the ule to look at ways of "cheating" the pressure forces.

One way would be to use the shaft of the pin to seal the o-rings rather than the end, as it is in the first diagram. If you put an o-ring on either end of the and have the air pressure act on the length of the pin there will be no net force on the pin. slide the pin out of one of the o-rings and the gas will vent through the vacated hole.

[IMG][/IMG]

Shouldn't be too much work to close since the gas will be venting down the barrel

[Hilltop Customs]

I more suggested the ule to look at ways of "cheating" the pressure forces.

One way would be to use the shaft of the pin to seal the o-rings rather than the end, as it is in the first diagram. If you put an o-ring on either end of the and have the air pressure act on the length of the pin there will be no net force on the pin. slide the pin out of one of the o-rings and the gas will vent through the vacated hole.

[IMG][/IMG]

Shouldn't be too much work to close since the gas will be venting down the barrel

ohh I see what you were trying to get at....heres what I was trying to explain earlier.....looks like it would have the same effect as you are explaining:

(i forgot to put the o-ring on the ram plunger)

heres something else that popped in my head when you mentioned the ULE

might cause some flow and o-ring wear problems tho.

[cyrus-the-virus]

Just have a spring to assist in closing the valve. If you make a small lip on the end of the piston the air would assist in closing.

If you did it right you could still use the level ten AND get eye's as well.

[RRfireblade]

The biggest hurdle in a quick look at all those designs , basically, is the dynamic o-rings. If they are not completely captured , pressure will either blow them out as they pass passages and/or ramp significantly in pressure induced expansion.

Not an easy task when flow rate is at a premium.

You'd have to run the whole set up inline and end up with pretty much a Matrix or Promaster.

[RRfireblade]

What'd I say ? Freestyle . . . sheesh.

[Dark Side]

The biggest hurdle in a quick look at all those designs , basically, is the dynamic o-rings. If they are not completely captured , pressure will either blow them out as they pass passages and/or ramp significantly in pressure induced expansion.

Not an easy task when flow rate is at a premium.

You'd have to run the whole set up inline and end up with pretty much a Matrix or Promaster.

It seems to me that a dual staged valve design would flow slightly slower but not eat orings due to lower immediate force. A rod within a rod. I'll have to get into MSpaint tonight.