Combustion engine

In engineering, combustion engine, is an engine, specifically a heat engine, wherein combustion of fuel is employed to make the hot body or working body, depending; when the combustion occurs within the piston and cylinder, e.g. the gunpowder engine, it is an “internal combustion engine”, which can be contrasted with an “external combustion engine”, wherein the combustion occurs external to the piston and cylinder, e.g. a steam engine, wherein the water is heated by burning coal.

The following are related quotes:

“The combustion engine, in the form of a cannon, is the oldest form of heat engine.”
Osborne Reynolds (1883), “On the General Theory of Thermo-Dynamics” [1]


1. (a) Reynolds, Osborne. (1883). “On the General Theory of Thermo-Dynamics”, Lecture at Engineering School at Owens College, Manchester; in: Papers on Mechanical and Physical Subjects, Volume Two: 1881-1900 (§47: pg. 151). Cambridge University Press, 1901.
(b) Cardwell, Donald S.L. (1971). From Watt to Clausius: the Rise of Thermodynamics in the Early Industrial Age. Cornell University Press.

External links
‚óŹ Combustion engine – Wikipedia.

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