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The Epic Interactive Encyclopedia 1998
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Epic Interactive Encyclopedia, The - 1998 Edition (1998)(Epic Marketing).iso
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P
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Pump
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INFOTEXT
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1992-09-03
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358b
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11 lines
A pump is any device for moving liquids and
gases, or compressing gases. Some pumps, such
as the traditional lift pump used to raise
water from wells, work by a reciprocating
(up-and-down) action. Movement of a piston in
a cylinder with a one-way valve creates a
partial vacuum in the cylinder, thereby
sucking water into it.
Subject by: Vince Pike