Closed bolt spool valve (closed bolt Ion)
Автор: jonathan lustenader
Загружено: 2009-10-08
Просмотров: 37470
Описание:
This is a closed bolt spool valve (more like pressure controlled poppet, but debatable and largely semantics) that I designed a few years ago. The version shown is a retrofitted SP Ion.
It works in a manner nearly opposite that of the prototype Legion Shocker and the Nova. Air enters through the side of the rear of the can (just like in an Ion). A normally open valve supplies pressure behind the valve piston, and when vented, the change in pressure bias pushes the piston back both sealing the dump chamber and opening the valve.
It is very efficient, my prototype gets well over a case per 20 ounce CO2 fill (almost 2,300), I haven't tested the efficiency with HPA yet.
The ball is chambered in the breech at rest, the actual firing happens at the beginning of the cycle, with the bolt retracting and re-chambering of the next ball happening later in the cycle - true closed bolt operation.
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