| Those two (1 each side of chimney) barrels.
They are clearly visible on every Chapelon engine, and also on many French locomotives of any kind. |
The double pump.
The middle part is the engine. Front and rear parts are hot and cold water pumps. |
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The principle used in those is heating of cold water by mix with
exhaust steam(s). These are quite simple. The water level is kept constant
in the two barrels by a classical float/three way valve combination.
As usual, click on the drawing for a large version. English (?? I hope!)
legend.
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A: Oil drain (through a balanced
piston preventing steam losses).
B: Westinghouse & A.C.F.I. pumps exhaust steam input. C: Drain pipe (maintenance). D: To hot water part of the pump (to boiler). E: Cold water in, from cold water part of the pump, or from main injector. F: Cold water return (to pump). G: Thermometer pick-up. |
