I need help to find a solution for activating a valve directing steam in and out/exhaust on a pneumatic/hydraulic sylinder. I want to avoid backpressure and to switch the valve at the right moment. I was thinking about using manual valve and controlling it with a rod connected to the flywheel mechanism, but im also looking for a sensor type to activate a selonoid valve, if it is possible. I have thought about bend sensors or maybe magnetic contact sensor. Maybe a camera sensor with a filter detecting a line on th piston rod. What type of sensor can I use, any sugestions?
Weird one this …. Valve timing is usually done by mechanical linkage ( as on cars , steam engines etc ) with timing set to give the best performance …anyway …..
. You could fit a mechanical limit switch at some position on the linkage or , depending on what the piston drives , maybe a rotary encoder.
You’ll need a switch to open the valve and another to close it , can be done without Arduino!!
You’ll need a solenoid valve which will operate on steam and is large enough to pass the flow without restriction .
That you tube video looks like a simple mechanical valve arrangement from what I can see ( the thin rod providing timing )
