| 摘要 |
A steam engine cylinder block comprising a higher pressure cylinder or cylinders and a transfer conduit through which steam exhausted from the higher pressure cylinder is led to drive the lower pressure cylinder, the cylinders being steam jacketed and the transfer conduit being steam jacketed such that the exhausted steam is re-heated during passage through the transfer conduit. The cylinder block forms part of a steam engine and is mounted upon a crank case through a mounting structure which separates the cylinder block from the crank case. The steam engine has a steam supply comprising an accumulator in the form of a pressure vessel which is part filled with water in use, a boiler, means defining a path through which water from the accumulator is input to the boiler, means defining a path through which steam output from the boiler is led into the water in the accumulator, and a steam take-off through which steam can escape the accumulator to supply an engine.
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