Pump
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A pump is a device that moves fluids, or sometimes slurries, by mechanical action, typically converted from electrical energy into hydraulic or pneumatic energy.
A small, electrically powered pump
A large, electrically driven pump for waterworks near the Hengsteysee, Germany
Antique "pitcher" pump (c. 1924) at the Colored School in Alapaha, Georgia, US
Screw pump
Lobe pump
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A lobe pump, or rotary lobe pump, is a type of positive displacement pump. It is similar to a gear pump except the lobes are designed to almost meet, rather than touch and turn each other. An early ex
Pump
…further classified according to the mechanism used to move the fluid: Rotary-type positive displacement: internal and external gear pump, screw pump, lobe pump, shuttle block, flexible vane and sliding vane, circumferential piston, flexible impeller, helical twisted roots (e.g. the Wendelkolben pump) and…
Lobe pump (5 m3/min or 1886 barrel/h) of THW