Steam chest design.

Steam chest design.

This topic has 6 replies, 4 voices, and was last updated 7 October 2018 at 10:13 by Eric Cox.

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6 October 2018 at 10:27 #374790
Eric Cox
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@ericcox50497
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.
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6 October 2018 at 10:27 #26221
Eric Cox
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@ericcox50497
6 October 2018 at 11:00 #374793
Speedy Builder5
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@speedybuilder5
How about a double expansion arrangement and single valve – perhaps not enough room for the LP cylinder.
BobH
6 October 2018 at 11:20 #374796
Eric Cox
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@ericcox50497
Here is the cylinder layout
6 October 2018 at 11:57 #374801
Weary
Participant
@weary
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
6 October 2018 at 16:06 #374820
Neil Wyatt
Moderator
@neilwyatt
Wow. I'd love to see the finished model in action!
7 October 2018 at 10:13 #374918
Eric Cox
Participant
@ericcox50497
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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