| 摘要 |
<p>The engine works of a thermo-dynamic cycle which employs two fluids of different boiling points such as water and ether and depends on the different vapour pressures of the fluids when both are at the same temperature. The reservoir contains a mixture of water and ether which evaporates when heated, the lighter fraction (ether) rising to the top, and is delivered to one cylinder, whilst the heavier fraction (water) is delivered to the other cylinder. The higher vapour pressure of the ether moves the pistons connected by a rod. A valve is then operated to supply ether to the second cylinder and water to the first.</p> |
