Valves Definition and 57 Threads

hello i am a mech engg student, i have few doubts in fluid dynamics and thermal engg subjects.. i would like to be cleared of them by this discussion forums could anyone please explain the principle of flow control using valves...waiting for ...

I was thinking about the valving system in a regular IC engine. The valves have huge springs on them and require a lot of force to open. The camshaft/lifter system makes for a lot of drag and lost horsepower. Instead of making the valves move up and down, why not make them spin? Imagine a a...

Hi, I'm trying to control some solenoid valves and sensors with a microcontroller and I'm not sure what type of circuitry might be used to best accomplish this. For the outputs I think a ULN2003AI made by Texas Instruments might work but for the inputs I'm not real sure what I need to take...

I'm thinking particularly of thermionic triode valves (tubes) here, but I suppose the reasons are probably similar whether it's a bipolar, jfet, mosfet etc... If your not sure about valves, a triode is super simple. It's just a hot cathode that emits electrons thermionically, an anode that...

I'm doing some drawings on a cooling system, which includes a couple of so called "magnet valves". What excactly is a magnet valve, and does it actually have anything to do with the normal type of magnets?

In a system of radiators, what would be the advantages of having thermostatic valves with pre-setting?

Hi all! I am learning basic thermodynamics, and I find it difficult to undestand the principle behind throttling valves, which are used to reduce the pressure of the flow, right? How could this be done? Why velocity being unchanged after passing through the valve? Could anyone please help?