Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1996-02-05
1998-03-24
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 905, 310178, 310179, 310181, 310203, 310214, 310216, 310261, 310268, 318253, 322 4, 322 48, H02K 709, H02K 2120
Patent
active
057316457
ABSTRACT:
A flywheel energy conversion device provides highly efficient conversion between kinetic and electrical energy. The flywheel produces increased output by providing armature coils in an air gap formed about the flywheel (both radial and axial embodiments are described). In preferred embodiments, field coils of a magnetic circuit are energized with DC drive current that creates homopolar flux within a rotating solid rotor having teeth cut from a flat disk. The total reluctance of the magnetic circuit and total flux remain substantially constant as the rotor rotates. The flux may travel radially outward and exit the flat disk through the teeth passing across an armature air gap. Airgap armature coils are preferably utilized in which the changing flux density (due to the rotating teeth) induces an output voltage in the coils. The flux is diffused before returning to the rotor in one of several ways such that core losses are effectively reduced, thereby enabling the flywheel to operate efficiently at high frequencies.
REFERENCES:
patent: 3304450 (1967-02-01), Bosco, Jr. et al.
patent: 3493800 (1970-02-01), Barrett
patent: 4075519 (1978-02-01), Mrcun
patent: 4077678 (1978-03-01), Studer et al.
patent: 4136296 (1979-01-01), Hickey
patent: 4159434 (1979-06-01), Kalsi
patent: 4211452 (1980-07-01), Poubeau
patent: 4366405 (1982-12-01), Schmider
patent: 4385251 (1983-05-01), Mallick et al.
patent: 4444444 (1984-04-01), Benedetti et al.
patent: 4460834 (1984-07-01), Gottfried
patent: 4611139 (1986-09-01), Godkin et al.
patent: 4620752 (1986-11-01), Fremerey et al.
patent: 4647806 (1987-03-01), Guffrida
patent: 4654551 (1987-03-01), Farr et al.
patent: 4827152 (1989-05-01), Farkas
patent: 5065060 (1991-11-01), Takahashi et al.
patent: 5065484 (1991-11-01), Pinchott
patent: 5097169 (1992-03-01), Fukushima
patent: 5130593 (1992-07-01), Connell
patent: 5210452 (1993-05-01), Pratap et al.
patent: 5315197 (1994-05-01), Meeks et al.
patent: 5434463 (1995-07-01), Horski
Rinehart, R.E., "A Flywheel Energy Storage Propulsion System for Intra Urban Buses;" 1980 Flywheel Technology Symosium , Oct. 1980, Scottsdale, Arizona, pp. 145 to 149.
Bauer, W.H. and Brobeck, W.M., "Flywheel Bearing Design for Automotive Applications," 1980 Flywheel Technology Symposium , Oct., 1980, Scottsdale, Arizona, pp. 371 to 379.
Andrews James A.
Clifton David B.
Little Scott R.
Pinkerton Joseph F.
Magnetic Bearing Technologies, Inc.
Morris Robert W.
Stephan Steven L.
Tamai Karl
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