Internal Combustion Engine

Any engine, either reciprocating or rotary, in which the fuel is consumed in the interior of the engine rather than outside of the engine.

Examples of internal combustion engines are diesel and petrol engines.

Steam engines are an example of an external combustion engine.

The main advantage of the internal combustion engine is the efficiency and overall size for a given power output.

Historical Notes

  1. 1860 French inventor Jean-Joseph-Étienne Lenoir patented a one-cylinder engine that used kerosene for fuel.
  2. 1861 Alphonse Beau de Rochas patented the concept of four strokes, with the vital compression of the mixture before ignition
  3. 1864 Austrian inventor Siegfried Marcus built and drove a carriage propelled by a two cylinder gasoline engine.
  4. 1876 American George Brayton patented an internal-combustion engine that was displayed at the 1876 Centennial Exhibition in Philadelphia, Pennsylvania.
  5. 1876 German engineer Nikolaus August Otto built the first practical four-stroke gas engine, the most direct ancestor to today′s automobile engines.

See also: Air Intake System, Alternator, Ancillaries, Aspin Engine, Bore and Stroke, Bottom End, Cam Follower, Camshaft, Carburetor, Carburetor Choke, Coking, Combustion Engine, Compression Ratio, Compression Relief, Compression Stroke, Connecting Rod, Crankcase, Crankcase Emissions, Crankshaft, Cylinder Head, Diesel Engine, Dipstick, Engine, Engine Efficiency, Engine Excitation Mechanisms, Engine Knock, Engine Oil, Evaporative Emissions, External Combustion Engine, Firing Order, Four-Stroke Engine, Free Piston Engine, Fuel Dilution, Lenoir, Jean-Joseph-Etienne, Marcus, Siegfried, Naturally Aspirated, Opposed Piston Engine, Otto, Nikolaus August, Petrol Engine, Piston, Sidevalve Engine, Spark Ignition Engine, Supercharger, Valves, Valvetrain.

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Subjects: Automotive Engines