compound steam engine的意思|示意

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Compound steam engine, also known as \\"compound engine\\", is a steam engine composed of two or more cylinders of different diameters connected in series or in parallel to produce mechanical energy. It is a kind of high efficiency steam engine widely used in the steam locomotives of the 19th century.

Compound steam engine can reduce the amount of fuel consumed, increase the efficiency of the steam engine, reduce the running cost of the steam engine and improve the power output of the steam engine. The working principle is to use a steam engine to drive two or more cylinders to work in turn, and the steam pressure is divided into two parts in the two cylinders, so that the steam can be exhausted after being used, and the energy of the steam is fully utilized.

The compound steam engine was first proposed by the British engineer Watts in 1781. Initially, it was only used in water pumps and textile machines. In the 19th century, due to the progress of the industrial revolution, the compound steam engine was widely used in power generation, locomotives and ships.

At present, the compound steam engine is basically not used in modern society. Modern society has used more advanced steam turbine-generator and gas turbine-generator to generate electricity.