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Engine room, steam.

Engine room, steam.

American terms 1918:
A, engine room casing. B, lifting gear beam. C, lifting gear traveller. D, lifting gear. E, ventilator. F, engine room ladder. G, forward end of engine room. H, I.P. piston valve covering. I, steam pipe from H.P. to I.P. valves. J, I.P. cylinder covering. K, slide valve balance

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Odd that there is an external steam pipe from IP to LP, usually direct via the slide valve.
Could N not be the top of the condenser under the grating?
 

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Hi Japottinger, I'm just quoting. I've checked that I have done so correctly, and from there on I have to leave the most technical stuff to others. But a diagram I am now looking at, shows a triple exp. engine configuration with the two pipes placed exactly as the one visible above the grating, and the one indicated below here. I could read up on the matter, but I am still hoping some steam engineer will sort out this piping question. Stein
 

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That is the inlet to the engine . It is I think a Quadruple Steam Engine and the inlet normally goes in to a chest ( i take to be H ) between the Hp ( forward of H ) and 1st IP Cylinder ( J ) and then to the 2nd IP ( Q ) the LP cyliner not being shown in the pic.
Conversley it could be a triple . In any event H is a chest not a cylinder. The HP is forward of H ; J is the next cylinder and the final cylinder shown is Q .
Derek
 

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Hi Derek. As I understand you: H is wrongly named (Well now that you point it out, obviously!) , but N is not? Stein.
 

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I agree . It is therefore a Triple expansion with the Inlet to the Hp not seen . The exhaust from Hp to Ip is Via the pipe shown to the Slide valve chest H and the exhaust from Ip to Lp is as described via pipe N below the grating to the Lp slide valve chest L . Exhaust to conderser not shown .

Derek
 

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