Diaphragm-type air pump

Details Diaphragm-type air pump Diaphragm-type air pump

1989-04-19

1991-05-07

Smith, Leonard E.

Pumps

Motor driven

Electric or magnetic motor

310 12, F04B 1704

Patent

active

050132237

ABSTRACT:
A diaphragm-type air pump capable of reducing leakage magnetic flux and effectively utilizing gap magnetic flux between a main pole and a side pole of an electromagnetic core, by (1) enlarging a distance between the main pole and the side pole and making tips of the main pole and the side pole approach to each other; (2) by reducing a sectional area of the main pole; or by (3) arranging a plurality of main poles parallel and/or vertical to a vibration direction of a rod having permanent magnets. A most effective utilization of electromotive force of the electromagnet enables the remarkable improvement of pump capacity, and the lightening and miniturization of pumps.

REFERENCES:
patent: 4154559 (1979-05-01), Enomoto
patent: 4371800 (1983-02-01), Brander

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