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Look up engine in Wiktionary, the free dictionary.

An engine is a device that converts potential energy into mechanical work.

Engine may also refer to:

In thermodynamics:

• Heat engine, a physical or theoretical device that converts thermal energy to mechanical output
• Reciprocating engine, a heat engine that uses one or more pistons
• Internal combustion engine, an engine in which the combustion of fuel and an oxidizer occurs in a confined space
  • Diesel engine
  • Wankel engine, a type of internal combustion engine
  • Pulse jet engine, an internal combustion engine wherein the combustion occurs in pulses
• External combustion engine, an engine where an internal fluid is heated through the engine wall or a heat exchanger
  • Steam engine, an external combustion engine that converts steam expansion into mechanical work
• Carnot heat engine, a hypothetical engine that operates on the reversible Carnot cycle
• Stirling engine, a closed-cycle regenerative hot air engine

In rail transport:

• Locomotive, the car of a train that carries the actual engine(s) and pulls the rest of the train
• Electric locomotive, which carries the electric motors of the train

In computer science:

• Engine (computer science), a construct providing timed preemption
• Software engine, a computer program that outputs source code or markup code that simultaneously becomes the input to another computer process.
• Search engine, an information retrieval system designed to find information on a computer system
• Game engine, the core software component of a computer or video game
• Layout engine, software that formats web content for display on the screen
• Rendering engine, software or hardware, which converts specifications for images into pixels
• Ray-tracing engine, software which renders a scene by tracing simulated rays of light
• Polymorphic engine or mutation engine, an early conceptual or mechanical calculating device
• Difference engine, a mechanical calculator designed to tabulate polynomial functions
• Analytical engine, a concept for a computer, designed by Charles Babbage

In literature:

• The Engine, a fictional device described in Gulliver's Travels

In television:

• Engine, a giant living machine in the Japanese Super Sentai TV series Engine Sentai Go-onger
• Engine (TV series), a Japanese television drama starring Takuya Kimura

[edit] See also

• Motor, a device which converts electrical or hydraulic energy into motion

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