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[[Image:Lysholm_screw_rotors.jpg|thumb|upright|Screw pump]] | [[Image:Lysholm_screw_rotors.jpg|thumb|upright|Screw pump]] | ||
[[Image:Screw_pump1.gif|thumb|upright|Screw pump]] | |||
A '''screw pump''' is a positive displacement pump that use one or several screws to move fluids or solids along the screw(s) axis. In its simplest form (the Archimedes' screw pump), a single screw rotates in a cylindrical cavity, thereby moving the material along the screw's spindle. This ancient construction is still used in many low-tech applications, such as irrigation systems and in agriculturural machinery for transporting grain and other solids. | A '''screw pump''' is a positive displacement pump that use one or several screws to move fluids or solids along the screw(s) axis. In its simplest form (the Archimedes' screw pump), a single screw rotates in a cylindrical cavity, thereby moving the material along the screw's spindle. This ancient construction is still used in many low-tech applications, such as irrigation systems and in agriculturural machinery for transporting grain and other solids. |