ISSN:
1432-1858
Source:
Springer Online Journal Archives 1860-2000
Topics:
Electrical Engineering, Measurement and Control Technology
,
Technology
Notes:
Abstract This paper presents the characterization of a positive displacement, magnetically-coupled, self-priming gear pump and a direct drive metal gear pump. In the magnetically coupled design (the in-line pump), the gears are indirectly driven by a electric motor coupled to a pair of magnets. The pump provides a flow rate of 350 μl/min at 5000 rpm, over 140 cm-H2O (∼2 psi) of head pressure and 28.8 cm-H2O vacuum on the suction side for a single stage pump. A two stage in-line pump generated 53 cm-H2O vacuum at its inelt (21″H2O). Very recently, we demonstrated a direct driven gear pump using a 3 mm smoovyTM brushless DC motor. The direct driven pump provides a maximum flow rate of 2.5ml/min at 1200 Hz (72 krpm) and 3.6 psi dead head pressure. The direct drive pump provided 18 cm-H2O vacuum at its inlet due to the large clearances in the first generation device.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s005420050122
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