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Internal Combustion Engine

Heat Engine

An internal combustion engine, or ICE, is a heat engine in which the combustion of a fuel occurs with an oxidizer, usually air, in a combustion chamber that is an integral part of the working fluid flow circuit. In an internal combustion engine, the expansion of the high temperature and high pressure gases produced by combustion applies direct force to components of the engine, converting chemical energy into kinetic energy that is used to propel, move or power whatever the engine is attached to.

Facts
Technology Type
Heat engine 2
Invented Year
1876 2
1876 is Nicolaus Otto's four-stroke Otto engine, generally regarded as the first modern internal combustion engine. The first commercially successful internal combustion engines, of the Lenoir type, date from the mid nineteenth century, decades earlier.
Classification
Maturity
TRL 9: Actual System Proven in Operational Environment 1
Sources
1. Internal combustion engine - Wikipedia
Technology maturity, Wikipedia introduction extract fetched 2026-09-25
Quote, Technology maturity, Wikipedia introduction extract fetched 2026-09-25
Renewable fuels are commonly blended with fossil fuels.
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2. Wikipedia: Internal combustion engine
Wikipedia
  • History section
    The first modern internal combustion engine, the Otto engine, was designed in 1876 by the German engineer Nicolaus Otto.
  • lead section
    An internal combustion engine (ICE or IC engine) is a heat engine in which the combustion of a fuel occurs with an oxidizer (usually air) in a combustion chamber that is an integral part of the working fluid flow circuit.
View the Source
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