Question re. valve 90 degrees to cylinder

[Brian Rupnow]

Last week I seen a horizontal mill type engine on here somewhere (Can't find it now) where the valve piston ran at 90 degrees to the power cylinder, and was operated by push rods running from the eccentric running though a bell crank.--It looked like the valve piston ran in the cylinder head. I would like to know more about this. I really like the size and design of the Hit and Miss engine I built ala Chuck Fellows, and would like to build another with the same basic body, crank, flywheel and cylinder design, but add a modified cylinder head and an eccentric to get more efficient valving.---Brian

 

[kvom]

That was the 2-1/2 lb engine I believe.

 

[CrewCab]

I think Kvom's got it one Brian .............. Clicky Linky

CC

 

[vlmarshall]

... horizontal mill type engine ... valve piston ran at 90 degrees to the power cylinder...operated by push rods running from the eccentric running though a bell crank...valve piston ran in the cylinder head.

Could you mean the simple little McCabe Runner?
http://npmccabe.tripod.com/mccaberunner.htm

 

[Brian Rupnow]

Yes, Vernon---thats the one, and thank you very much. I think that "Chucks Single" is capable of a lot more power if it had a conventional valving set-up on it, and I wanted to see exactly how that valving was accomplished.---Brian
Okay---Having studied the valving a bit on McCabes Runner, I think tomorrow I will design an alternate cylinder head for my Chucks Single and see about adding an eccentric to it.

 

[CallMeAL]

Brian,

Here is my version of that engine:

[ame]http://www.youtube.com/watch?v=60l7whGQ5OI[/ame]


http://chestofbooks.com/crafts/popu...oys-to-Do/How-To-Make-A-Toy-Steam-Engine.html

Here is where I got the idea - just made it fancier!

Al

 

[tel]

Valve at 90° to piston travel - like this?