Finger pumps push a series of rods against
a flexible tubing in sequence, forcing fluid along the tube. In this pump the
fluid moves from left to right. |
Since nothing but the tube actually touches
the fluid, the fluid can be kept clean so this pump is often found in medical
applications, pumping blood or other fluids.
The individual fingers can be
operated by a rotating camshaft above them, by individual solenoids electronically
actuated in sequence, or by other methods.
(This is a 12-frame
animation, converted to animated GIF format for Internet use and transmission.
(Note: On some Internet browsers it may be displayed much less smoothly than the
CD-ROM version, where the frames are timed to a thousandth of a second.))