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The Epic Interactive Encyclopedia 1997
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The_Epic_Interactive_Encyclopedia_97.iso
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governor
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1992-09-03
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590b
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15 lines
In engineering, any device that controls the
speed of a machine or engine, usually by
regulating the intake of fuel or steam. James
Watt invented the steam-engine governor in
1788. It works by means of heavy balls, which
rotate on the end of linkages and move in or
out because of centrifugal force according to
the speed of rotation. The movement of the
balls closes or opens the steam valve to the
engine. When the engine speed increases too
much, the balls fly out, and cause the steam
valve to close, so the engine slows down. The
opposite happens when the engine speed drops
too much.