I'm looking for a way to get an air valve to respond extremely fast. For use in car engine crankcase evacuation, using the venturi vacuum in the exhaust, PLUS short scavenging pulses that should give me even more vacuum, but for those I would need an extremely fast acting valve, 200Hz is just so it reacts to each cylinder's full cycle but in reality it would need to be around 10x faster to react to the actual pulse itself.
it's gonna go on a 1/2" pipe fitting, for a very rough flow estimate.
I presume a mechanical valve is out of the question, I was thinking of maybe a pressure sensor and a fast acting solenoid. It would have to be able to handle around 200C temps, and the pressure sensor would need to handle basically fire, and also frequent backfires which are explosions in the exhaust.
Does it sound like a feasible setup?