Compressed Air 3 cylinder radial engines

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cfellows:

--- Quote from: Divided he ad on June 03, 2013, 08:23:58 PM ---Stuff deleted...

I'm missing the bit on the valves.... I'm of no doubt you will have listed their build elsewhere. Any chance you can remember the thread name/location? I'll go and have a look :coffee:

Cheers,
Ralph.

--- End quote ---

Ralph, here's a diagram of the Slave Exhaust Valve Setup...

Chuck

vtsteam:
That is very cool. I would imagine it has resonance qualities -- possibly those could be taken advantage of as a governor.

If used in a steam engine, the temperatures would have to be prevented from reaching the point of annealing the spring, I imagine. But of course this is a compressed air engine.

Very interesting design. :thumbup:

Just watched the video -- sounds great. Nice engine!

Divided he ad:
Chuck... Great runner :beer:

Gets up to some speed! :bugeye: Think I'd have gone with a rubber prop.... I'd be bound to get my fingers in there somewhere! :palm:

Thanks for the link to the original and the valve design pic'. I get it now :thumbup:

Ralph.

cidrontmg:
cfellows:
"Here's the finished engine. Runs great, scary fast!"

It sure runs (and sounds) great, excellent!
Just wondering, most propeller engines run counterclockwise, at least U.S. engines have always ccw direction. Big or small. But their engine runs clockwise :scratch: I also have seen a 4,1 ccm Sleeve Valve Engine, by Achim Steinke (http://www.metallmodellbau.de/), running "backwards". Why is your engine running the "wrong way"? :wave:

cfellows:

--- Quote from: cidrontmg on June 05, 2013, 11:18:47 AM ---cfellows:
"Here's the finished engine. Runs great, scary fast!"

It sure runs (and sounds) great, excellent!
Just wondering, most propeller engines run counterclockwise, at least U.S. engines have always ccw direction. Big or small. But their engine runs clockwise :scratch: I also have seen a 4,1 ccm Sleeve Valve Engine, by Achim Steinke (http://www.metallmodellbau.de/), running "backwards". Why is your engine running the "wrong way"? :wave:

--- End quote ---

I was aware that aircraft engines typically turn anti-clockwise. However, on my engine, the crank-pin, which holds the connecting rods, screws into the crankshaft disk with a standard, right hand thread. I made the engine to turn clockwise (counter clockwise from the back) so the crankpin would not loosen over time from the unwinding action of the connecting rods.

Chuck

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