Apparatus for transferring torque magnetically

• US 20050189830A1
• Filed: 03/01/2004
• Published: 09/01/2005
• Est. Priority Date: 03/01/2004
• Status: Active Grant

• Current Assignee: Jean Berg Oseran, William A Oseran
• Original Assignee: Flux Drive, Inc.
• Inventors: Strong, Walter F., Corbin, Philip III, Rusconi, John B., Molnar, John A., Dahlin, Robert L.
• Granted Patent: US 7,294,947 B2
• Time in Patent Office: Days
• US Class Current: 310/103
• CPC Class Codes: H02K 49/02 of the asynchronous induction type
• CPC Class Codes: H02K 49/106 with a radial air gap
• CPC Class Codes: H02K 51/00 Dynamo-electric gears, i.e. dynamo-electric means for transmitting mechanical power from a driving shaft to a driven shaft and comprising structurally interrelated motor and generator parts

Abstract

An apparatus for transferring torque magnetically with a primary rotary member and a secondary rotary member. The primary rotary member has permanent magnets mounted circumferentially on a cylinder, the secondary rotary member having a cylindrical geometry with electroconductive material arranged on its outer periphery and parallel to the axes of the rotary members. The secondary rotary member also having magnetically permeable material. The secondary rotary member is placed partially or totally inside the primary rotating member. The secondary rotary member'"'"'s axial position relative to the primary rotating member can be varied by a suitable mechanical structure. This causes the two rotary members to axially overlap one another more or less as desired. Rotation of the primary rotary member causes rotation of the secondary rotary member, since magnetic flux lines emanating from the permanent magnets mounted on the primary rotating member, cut through all, or part of, the electroconductive material placed on the periphery of the secondary rotary member. This can vary the torque transmitted between the two rotary members, thereby enabling the varying of the rotational speed of the secondary rotary member relative to the primary rotary member.

Claims

1. An apparatus for transferring torque magnetically comprising:

a primary torque driving rotary member and a secondary driven rotary member;

the primary rotary member axially overlapping said secondary rotary member;

the secondary rotary member being surrounded by said primary member;

the primary rotary member having permanent magnets mounted on it;

the secondary rotary member having electroconductive elements and magnetically permeable materials;

said secondary rotary member axially overlapped by said primary rotating member wherein said primary rotary member'"'"'s axial position relative to said secondary rotating member can be varied by a suitable means; and

said primary rotating member being connected to and driven by a torque producing device and said secondary rotating member being connected to a torque utilizing device whereby rotation of the primary rotary member causes rotation of said secondary rotating member by some or all of the magnetic flux lines emanating from said permanent magnets mounted on said primary rotating member cutting through the electroconductive material on said secondary rotary member thereby generating torque and rotation in said secondary rotary member in relation to the percentage of the total area that said secondary rotary member is axially overlapped by said primary rotary member.

2. The apparatus according to claim 1 in which the primary rotary member'"'"'s permanent magnets contain rare earth materials.

3. The apparatus according to claim 1 in which the primary rotary member'"'"'s magnets are supported by a cylinder made of a ferrous material.

4. The apparatus according to claim 1 in which the primary rotary member'"'"'s cylinder is constructed of built up thin pieces of ferrous material each electrically separated from one another by a suitable electrical insulating material.

5. The apparatus according to claim 1 in which the secondary rotary member'"'"'s electroconductive material is made of aluminum and its alloys.

6. The apparatus according to claim 1 in which the secondary rotary member'"'"'s electroconductive material is supported by laminated pieces of ferrous material each electrically separated from one another by a suitable electrical insulating material.

7. The apparatus according to claim 1 in which the primary and secondary rotary members being independently supported.

8. The apparatus according to claim 1 in which the primary rotary member'"'"'s magnets axial position is adjusted by an automatic device.

9. The apparatus according to claim 1 in which the secondary rotary member'"'"'s electroconductive material is made of copper and its alloys.

10. The apparatus according to claim 1 in which the primary rotary member'"'"'s permanent magnets contain niodinium, iron and boron.

11. The apparatus according to claim 1 in which the primary rotary member'"'"'s permanent magnets contain alnico, iron and ceramic materials.

12. The apparatus according to claim 1 in which the secondary rotary member'"'"'s electroconductive material is configured as a solid cylindrical ring geometry mounted on said secondary rotary member'"'"'s outer cylindrical surface.

13. The apparatus according to claim 1 in which the secondary rotary members electroconductive material is configured as a circumferential ladder geometry mounted on said secondary rotary member'"'"'s outer cylindrical surface.

14. The apparatus according to claim 13 in which the secondary rotary member'"'"'s electroconductive material'"'"'s circumferential ladder geometry is divided into a plurality of electrically independent segmented arcs, mounted on said secondary rotary member'"'"'s outer cylindrical surface.

15. The apparatus according to claims 13 or 14 further comprising electrically resistive materials being inserted into the electroconductive materials'"'"' electrical circuit.

16. An apparatus for transferring torque magnetically comprising:

a primary torque driving rotary member and a secondary driven rotary member;

the primary rotary member axially overlapping said secondary rotary member;

the secondary rotary member being surrounded by said primary member;

the primary rotary member having electroconductive elements and magnetically permeable materials;

the secondary rotary member having permanent magnets mounted on it;

said secondary rotary member axially overlapped by said primary rotating member wherein said primary rotary member'"'"'s axial position relative to said secondary rotating member can be varied by a suitable means; and

said primary rotating member being connected to and driven by a torque producing device and said secondary rotating member being connected to a torque utilizing device whereby rotation of the primary rotary member causes rotation of said secondary rotating member by some or all of the magnetic flux lines emanating from said permanent magnets mounted on said primary rotating member cutting through the electroconductive material on said secondary rotary member thereby generating torque and rotation in said secondary rotary member in relation to the percentage of the total area that said secondary rotary member is axially overlapped by said primary rotary member.

17. The apparatus according to claim 16 in which the secondary rotary member'"'"'s permanent magnets'"'"' contain rare earth materials.

18. The apparatus according to claim 16 in which the secondary rotary member'"'"'s magnets are supported by a cylinder made of a ferrous material.

19. The apparatus according to claim 16 in which the secondary rotary member'"'"'s cylinder is constructed of built up thin pieces of ferrous material each electrically separated from one another by a suitable electrical insulating material.

20. The apparatus according to claim 16 in which the primary rotary member'"'"'s electroconductive material is made of aluminum and its alloys.

21. The apparatus according to claim 16 in which the primary rotary member'"'"'s electroconductive material is supported by laminated pieces of ferrous material each electrically separated from one another by a suitable electrical insulating material.

22. The apparatus according to claim 16 in which the primary and secondary rotary members being independently supported.

23. The apparatus according to claim 16 in which the secondary rotary member'"'"'s magnets axial position is adjusted by an automatic device.

24. The apparatus according to claim 16 in which the secondary rotary member'"'"'s permanent magnets contain niodinium, iron and boron.

25. The apparatus according to claim 16 in which the secondary rotary member'"'"'s permanent magnets contain alnico, iron and ceramic materials.

26. The apparatus according to claim 16 in which the primary rotary member'"'"'s electroconductive material is made of copper and its alloys.

27. The apparatus according to claim 16 in which the primary rotary member'"'"'s electroconductive material is configured as a solid cylindrical ring geometry mounted on said primary rotary member'"'"'s inner cylindrical surface.

28. The apparatus according to claim 16 in which the primary rotary member'"'"'s electroconductive material is configured as a closed circumferential ladder geometry mounted on said primary rotary member'"'"'s inner cylindrical surface.

29. The apparatus according to claim 28 in which the primary rotary member'"'"'s electroconductive material'"'"'s circumferential ladder geometry is divided into a plurality of electrically independent segmented arcs, mounted on said primary rotary member'"'"'s inner cylindrical surface.

30. The apparaturs according to claims 28 or 29 further comprising electrically resistive materials being inserted into the electroconductive materials'"'"' electrical circuit.