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Steam chest design.

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Eric Cox	06/10/2018 10:27:07
557 forum posts 38 photos	As a long term project I'm designing a locomotive. The prototype has four cylinders, two cylinders each side outside the frames one above the other. The top cylinders are mounted with an incline of plus two degrees from the horizontal and the bottom cylinders mounted with an incline of minus two degrees from the horizontal. Would I be better having the steam chests as single units with two D slides and connected steam chambers and exhaust ports in each one or separate steam chests for each cylinder.
Speedy Builder5	06/10/2018 11:00:20
2878 forum posts 248 photos	How about a double expansion arrangement and single valve - perhaps not enough room for the LP cylinder. BobH
Eric Cox	06/10/2018 11:20:10
557 forum posts 38 photos	Here is the cylinder layout
Weary	06/10/2018 11:57:39
421 forum posts 1 photos	Hello Mr Cox, Didn't the original have a single valve chest and (internal) valve gear each side with crossed ports to each cylinder on that side? Surely this will work in the model too? Looks to me that in the specific drawing that you have reproduced that the valve rod or part of a guide for it is just visible through a frame opening ahead of the cylinders(??). Regards, Phil
Neil Wyatt	06/10/2018 16:06:12
19226 forum posts 749 photos 86 articles	Wow. I'd love to see the finished model in action!
Eric Cox	07/10/2018 10:13:24
557 forum posts 38 photos	The original had two valve chests with separate valve rods per side run off two inboard mounted eccentrics. Yes Neil, so would I

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