Pumps – Motor driven – Electric or magnetic motor
Patent
1995-02-10
1998-11-10
Vrablik, John J.
Pumps
Motor driven
Electric or magnetic motor
310 23, F04B 1704
Patent
active
058334408
ABSTRACT:
A magnetically-powered linear displacement device is disclosed which can be used as the highly efficient pollution-free prime mover. The linear displacement device utilizes a permanent magnet whose flux density can be readily shifted from one of two parallel magnetic paths within the displacement device. A pair of pole pieces made of magnetically soft material abuts portions of the permanent magnet and conducts the magnetic flux in two different magnetic circuit pathways such that the permanent magnet's flux can flow in either direction, and if the magnetic flux is travelling along a first of these parallel paths through a movable armature, that armature will be attracted toward the ends of the pole pieces. If the magnetic flux is then shifted to the second path of these two parallel paths, then that movable armature will not be attracted to the pole pieces, and a compression spring can be used to push that movable armature away from the pole pieces. The magnetic pathways are shifted by use of electromagnetic coils wrapped around certain portions of the pole pieces, such that when a current pulse of a given polarity is directed into these coils, the resultant reluctance of the pole pieces is either increased or decreased to shift the path of the magnetic flux from one of the parallel pathways to the other. When the polarity of the current pulse is reversed, the movable armature is forced to the opposite position of its linear displacement travel. By energizing the electromagnetic coils sequentially with alternating opposite polarities, the movable armatures will move in a reciprocating fashion. The displacement device can be configured to act as a linear alternator by the addition of one or more magnetos that create electrical current as the movable armature moves through its normal travel. The displacement device further can be configured to operate as a pump or a valve by adding a fluid chamber with appropriate fluid ports.
REFERENCES:
patent: 3461806 (1969-08-01), Barthalon
patent: 3894817 (1975-07-01), Majoros et al.
"The Ideal Magnet--Fully controllable Permanent Magnets for Power and Transport", G.R. Polgreen, Electronics & Power, Jan., 1971, pp. 31-34.
"Introduction to Magnetic Materials", B.D. Cullity, Addison-Wesley Publishing Co., 1972, pp. 608-646.
"Testing and Measurement of Permanent Magnets", Magnetic Materials Producers Association, 1717 Howard Street, Evanston, Illinois 60202, 1975, pp. 24-25.
McAndrews, Jr. Roland G.
Vrablik John J.
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