Engine

An engine or motor is a machine designed to convert energy into useful mechanical motion. Heat engines, including internal combustion engines and external combustion engines (such as steam engines) burn a fuel to create heat which is then used to create motion. Electric motors convert electrical energy into mechanical motion, pneumatic motors use compressed air and others, such as clockwork motors in wind-up toys use elastic energy. In biological systems, molecular motors like myosins in muscles use chemical energy to create motion.

Read more about Engine:  Terminology, Nonthermal Chemically Powered Motor, Electric Motor, Physically Powered Motor, Sound Levels, Efficiency, Engines By Use, Engine Speed

Other articles related to "engine, engines":

Displacement - Physical Sciences - Engineering
... Engine displacement, the total volume of air/fuel mixture an engine can draw in during one complete engine cycle Displacement (fluid), an object immersed in a fluid pushes ...
Volvo Amazon - History
... In 1967 came the 123GT that was a 130 with high compression four-cylinder B18B engine (from the Volvo P1800), M41 gearbox, fully reclining seats, front fog and driving lights (on some markets), alternator ... In 1969 the displacement of the old B18 engine was increased and the engine was called the B20 ...
Vauxhall Astra - Second Generation (1984-1991)
... It used the same range of engines and running gear as the Mark 1, but with a completely restyled body with better aerodynamics ... A new GTE using a 2 litre fuel injected engine was also introduced, and early models of these featured an all electronic dash with digital speedometer ... Vauxhall's twin-camshaft version of the engine, the C20XE, had a high performance version of the GTE created around it ...
Engine Speed
... Engine speed is measured in revolutions per minute (RPM) ... Engines may be classified as low-speed, medium-speed or high-speed but these terms are inexact and depend on the type of engine being described ...
V4 Engine
... A V4 engine is a V form engine with four cylinders and three main bearings. ...

Famous quotes containing the word engine:

    There is a small steam engine in his brain which not only sets the cerebral mass in motion, but keeps the owner in hot water.
    —Unknown. New York Weekly Mirror (July 5, 1845)

    The machine unmakes the man. Now that the machine is perfect, the engineer is nobody. Every new step in improving the engine restricts one more act of the engineer,—unteaches him.
    Ralph Waldo Emerson (1803–1882)

    The will is never free—it is always attached to an object, a purpose. It is simply the engine in the car—it can’t steer.
    Joyce Cary (1888–1957)