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centrifugal pump
Science; General science
A machine for moving fluid by accelerating it radially outward. More fluid is moved by centrifugal pumps than by all other types combined. The smooth, essentially pulsationless ...
planer
Science; General science
A machine for the shaping of long, flat, or flat contoured surfaces by reciprocating the workpiece under a stationary single-point tool or tools. Usually the workpiece is too ...
generator
Science; General science
A machine in which mechanical energy is converted to electrical energy. Generators are made in a wide range of sizes, from very small machines with a few watts of power output to ...
locomotive
Science; General science
A machine mounted on flanged wheels which converts some form of potential energy into the mechanical work of propelling itself and other, nonpowered vehicles over a railroad ...
alternating-current generator
Science; General science
A machine that converts mechanical power into alternating-current electric power. Almost all electric power is produced by alternating-current (ac) generators that are driven by ...
pump
Science; General science
A machine that draws a fluid into itself through an entrance port and forces the fluid out through an exhaust port (see illus. ). A pump may serve to move liquid, as in a ...
compressor
Science; General science
A machine that increases the pressure of a gas or vapor (typically air), or mixture of gases and vapors. The pressure of the fluid is increased by reducing the fluid specific ...
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