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Reverse Crank/Over Crank Engine

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arnoldb:
Great stuff Stew - nice set of plans  :clap: :clap: - Thank you!

I think I'll try this one scaled down to about 2/3 of your plan size - due to limited material especially for the cylinder block.  Or I might go for a fabricated block...  :proj:

Do you have a sheet with the valve chest and cylinder heads ? - not a biggy as I think I can suss it out  :thumbup:

 :beer:, Arnold

sbwhart:
Hi Arnold

Thanks for your interest

Whoops I thought I'd posted the steam chest but I can see now that I havn't this should put it right

I've also attached the drawings on how I plan to fabricate the cylinder.

Just a warning if you are planning on following these drawings I had to go round the boy quite a few times to get everything fitting in place and chase the changes through, I may well have missed some, so as you build just check through that everything will fit, I was planning on revising the drawings after i do my build to get rid of any mistakes.

Cheers

Stew

arnoldb:
Thanks Stew - much appreciated!

I'll first go through all the plans and machine each piece of the engine in my head to get a feel for it - so don't hold your breath on a quick start  :med:

 :beer:, Arnold

NickG:
Stew, sorry I missed this until now. Very exciting project, would love to be able to do something like what you are. I think you were spot on with all the criteria affecting governor, the only other thing I can think of is the distance between the top pin and bottom pin on arms I.e the amount of leverage the balls provide against spring. Altering this will also alter travel though.
Can't wait to see more, I've been surprised in workshop this winter, haven't felt the cold much. As Rob said, southern softie  :lol: unless it is the Geordie in us!
Nick

sbwhart:
Thanks for you comment Nick your correct about the distance of the arm, a search of the net came up with a paper by James Clark Maxwell (a scot) written in the late 1800 its still regarded as the definitive paper on governors not an easy read, the language is a bit strange, when you get into the equations try not to understanding the maths, (I soon got lost) but concentrate on the factors  you get to understand what criteria has an effect.
 
http://en.wikipedia.org/wiki/File:On_Governors.pdf

Started doing a bit in the shop a bit of tidying and tool storage building, one or two little jobs to do that will take a week or two then I'll start on this.

But with all you guys building flame gulpers as given me  :proj:  I've got a design buzzing around my head for one that I can't shake off its got a valve worked by a locomotive type linkage similar to a Walshart. 

I'm going to try a mock up of it, if its looks a goer I just may have a go at building the engine

Stew

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