Motive power generating device (US5436518)


	Parent Case:			This application is a Continuation-in-Part of application Ser. No. 07/816,821 filed on Jan. 3, 1992, now abandoned.
	Family:			None
	First Claim: Show all 16 claims			What is claimed is: 1. A motive power generating device for transforming magnetic energy into motive power comprising: a stationary support member; an output shaft rotatably mounted on the support member; a permanent magnet disposed around the rotational output shaft for rotation therewith; a magnetic body disposed in concentric relationship with said permanent magnet for rotation with said rotational output shaft, said magnetic body being subjected to the magnetic flux of said permanent magnet; a plurality of electromagnets fixedly mounted on said support member in such a manner that they are spaced a predetermined distance apart around the periphery of said magnetic body, each magnetic circuit of said electromagnets being adapted to be independent of one another; said magnetic body including magnetic notches and teeth which are disposed alternately in an outer peripheral portion thereof, each said tooth having an outer corner which is forwardly positioned in the rotational direction and has an acute angle configuration so as to cause further convergence of the magnetic flux; certain of said electromagnets being disposed at positions corresponding to boundary portions between said notches and said magnetic teeth; and excitation change-over means for said electromagnets to sequentially magnetize one of said electromagnets which is positioned forwardly in the direction of rotation with regard to the outer corner of the tooth so as to give said particular electromagnet a magnetic polarity magnetically opposite to that of the magnetic pole of said permanent magnet, whereby magnetic flux passing through said magnetic body is converged in one direction so as to apply a rotational torque to said rotational output shaft.
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	Forward References:			Show 14 U.S. patent(s) that reference this one

U.S. References:

Go to Result Set: All U.S. references | Forward references (14) | Backward references (23) | Citation Link

Patent	Pub.Date	Inventor	Assignee	Title
US3411059	1968-11	Kaiwa		PULSE MOTOR AND CONTROL SYSTEM THEREFOR
US3473061	1969-10	Soehner et al.		IGNITION ARRANGEMENTS FOR INTERNAL COMBUSTION ENGINES
US3555380	1971-01	Hings		LINEAR ROLLING MOTOR
US3577053	1971-05	McGee	Sperry Rand Corporation	BRUSHLESS DC MOTOR INCLUDING A VARIABLE ATTENUATOR FED COMMUTATOR
US3707638	1972-12	Nailen	Alumina Ferrite Corporation of America	ELECTRIC MOTOR UTILIZING A FERRITE STATOR OF LOW COERCIVENESS, FERRITE ROTOR OF HIGH COERCIVENESS, AND PHOTO-ELECTRIC COMMUTATION
US4095161	1978-06	Heine et al.	Gerhard Berger GmbH & Co. Fabrik Elektrischer Messgerate	Variable stepping-angle synchronous motor
US4306164	1981-12	Itoh et al.	Oki Electric Industry Co. Ltd.	Pulse motor
US4347457	1982-08	Sakamoto	Japan Servo Co.	Permanent magnet type stepping motor
US4357551	1982-11	Dulondel		D.C. Impulsion motor
US4406958	1983-09	Palmero et al.	The Superior Electric Company	Stepping motors with disc magnet
US4633108	1986-12	von der Heide	Papst-Motoren GmbH & Co. KG	Direct current linear motor
US4712028	1987-12	Horber	Sigma Instruments, Inc.	Magnetically assisted stepping motor
US4719378	1988-01	Katsuma et al.	Kabushiki Kaisha Yaskawa Denki Seisakasho	Brushless motor having permanent magnet rotor and salient pole stator
US4728837	1988-03	Bhadra	Combustion Engineering, Inc.	Variable speed, variable motion, electrically operated vibrator for screening machinery
US4774440	1988-09	Bhadra	Combustion Engineering, Inc.	Variable speed, variable motion, electrically operated vibrator for screening machinery
US4786834	1988-11	Grant et al.	REM Technologies, Inc.	Stator assembly for dynamoelectric machine
US4870306	1989-09	Petersen	Polaroid Corporation	Method and apparatus for precisely moving a motor armature
US5023495	1991-06	Ohsaka et al.	Hitachi Metals & Shicoh Engine	Moving-magnet type linear d.c. brushless motor having plural moving elements
US5030866	1991-07	Kawai	Kabushiki Kaisha Big	Electric motor
US5105111	1992-04	Luebke		Electrical machine especially a D-C motor
US5191255	1993-03	Kloosterhouse et al.	Magnetospheric Power Corp. Ltd.	Electromagnetic motor
US5192899	1993-03	Simpson et al.		Electromagnetically powered rotary motor apparatus and method
US5258697	1993-11	Ford et al.	Varelux Motor Corp.	Efficient permanent magnet electric motor

Foreign References:

Buy PDF	Publication	Date	IPC Code	Assignee	Title
	EP0082356	1983-06	B65G 54/00	EMAG MASCHFAB GMBH	Device for transporting ferromagnetic work pieces
	EP0411563A1	1991-02	H02K 21/00	TECHNICAL ASSOCIATE CO LTD	Same polarity induction generator

Other References:

IBM Technical Disclosure Bulletin, Wound Rotor Incremental Motor, P. J. Davies et al, vol. 12, No. 12, May 1970, p. 2130.

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