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Practical Centrifugal Pumps
book

Practical Centrifugal Pumps

by Paresh Girdhar, Octo Moniz
April 2011
Beginner to intermediate content levelBeginner to intermediate
264 pages
8h 24m
English
Newnes
Content preview from Practical Centrifugal Pumps
6 Practical Centrifugal Pumps
Figure 1.7
Diaphragm pump
1.4 Rotary pumps
1.4.1 Gear pump
Gear pumps are of two types:
1. External gear pump
2. Internal gear pump.
External gear pump
In external gear pumps, two identical gears rotate against each other. The motor provides
the drive for one gear. This gear in turn drives the other gear. A separate shaft supports
each gear, which contains bearings on both of its sides (Figure 1.8).
As the gears come out of the mesh, they create expanding volume on the inlet side of
the pump. Liquid flows into the cavity and is trapped by the gear teeth while they rotate.
Liquid travels around the interior ...
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Publisher Resources

ISBN: 9780080480145