This is the case with [Penguin DIY]’s tiny centrifugal water pump built from 5 ml syringes ... one minute with enough pressure to send the jet of water flying. There are still some issues ...

Jet pumps are less efficient than typical centrifugal pumps due to such factors as friction loss, but may be more efficient when working with combined media that includes gases, and in variable well ...

Centrifugal pumps are dynamic pumps which move fluids through a system using one or more impellers. They are the most common type of pump because of the simplicity and effectiveness of their design ...

[Yoshihito Isogawa] almost never employs non-LEGO parts in his creations. He created an excellent centrifugal pump out of 100% LEGO. While mostly a curiosity, you can definitely get a sense of ...