Andrews, Ernest John, 1863-, Howland, Howard Newell, 1865- joint author · New York, London, The Macmillan company · leaf 181
to that of the gas-engine, the main difference being in theuse of the expansive power of steam to actuate the pistoninstead of the explosive force of a burning gas. Water is heated in the boiler B (Fig. 73). The steamwhich is produced is confined in the boiler until the press- 1G6 HEAT [§281 … i>( Fig. 74. ure becomes high, frequently as high as ten times thepressure of the atmosphere. The steam under this highpressure is passed through the pipe P into the steam-chest/S, and then through the portp into the end of the cylin-der C. The high pressureof the steam enables it topush the…
Physics
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