USRE46449EActiveUtility

Electromagnetic machine with independent removable coils, modular parts and self sustained passive magnetic bearing

Assignee: CLEARWATER HOLDINGS LTDPriority: Jul 9, 2007Filed: Jul 9, 2008Granted: Jun 20, 2017
Est. expiryJul 9, 2027(~1 yrs left)· nominal 20-yr term from priority
Inventors:Dumitru Bojiuc
H02K 21/10H02K 7/003H02K 23/02H02K 41/02H02K 2213/12
91
PatentIndex Score
17
Cited by
11
References
20
Claims

Abstract

A rotating electromagnetic machine has a tubular axle with mounting rings, a common ring, a coil input ring, and at least one bearing set mounted on it. A fitting is secured at a distal end of the tubular axle, and a commutator is secured at the proximal end. A housing is mounted on the bearing sets through adaptors. Connecting bars extend axially within the axle with lateral rods joined to the connecting bars at their distal ends, the bars commuting between segments of the commutator electromagnetic coils. A plurality of the electromagnetic coils are secured to the coil input ring. The coils are formed of spiral turns of a single flat strip electrically conductive material. A plurality of peripheral and sector magnets are mounted adjacent to the electromagnetic coils with electromagnetic interaction when relative motion occurs between the coils and the magnets.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. A rotating electromagnetic machine comprising:
 a tubular axle defining a distal and a proximal ends thereof, and mounted medially thereon, a pair of mounting rings, a common ring, a coil input ring, and at least one bearing set; a fitting is secured at the distal end of the tubular axle, and a commutator is secured at the proximal end of the tubular axle;   a housing mounted on the bearing sets through adaptors; the common ring constructed in two pieces and independently removable from axle,   connecting bars extending axially within axle; lateral rods joined to connecting bars at distal end thereof, the lateral rods commuting between bars and segments of commutator with distal ends joined with lateral plates;   a plurality of electromagnetic coils secured to the mounting rings, the coils formed of spiral turns of a single flat strip electrically conductive material; and   a plurality of peripheral and sector magnets mounted adjacent to the electromagnetic coils.   
     
     
       2. The rotating electromagnetic machine of  claim 1  assembled with a modular construction with coil housings of a ferromagnetic material separated into a plurality of magnetically isolated segments in mutual electrical continuity, whereby hysteresis is minimized. 
     
     
       3. The rotating electromagnetic machine of  claim 1  wherein each of the peripheral and sector magnets has edges cut in a shape that enables a continuous magnetic pole face and avoids an alternating magnetic end effect at opposing ends of the magnet, whereby, induced eddy currents of the ferromagnetic segments are returned to the electrical circuit thereof. 
     
     
       4. A rotating electromagnetic machine comprising:
 an axle;   a plurality of electromagnetic coils, each mounted on a separate core, and wherein each of the plurality of electromagnetic coils are mounted on separate coil housings of ferromagnetic material which are separated in into a plurality of segments magnetically isolated from each other but in electrical continuity, wherein the coil housings are mounted on the axle, wherein each of said coils has a winding axis tangential to a direction of rotation of the machine;   a plurality of sets of peripheral and sector magnets, said magnet sets positioned adjacent to the coils wherein each said magnet set has two of said sector magnets in mutually opposing and facing positions and at least one of said peripheral magnets positioned orthogonal to the sector magnets;   wherein said plurality of electromagnetic coils and said plurality of magnet sets are engaged for relative rotation between the coils and the sets of magnets.   
     
     
       5. The machine of claim 4 wherein the magnet sets are mounted in a housing, said housing secured on bearing sets engaged with said axle thereby enabling relative rotation between the housing and the axle. 
     
     
       6. The machine of claim 4 wherein the peripheral magnets each have at least two opposing chamfered edges. 
     
     
       7. A rotating electromagnetic machine comprising:
 an axle;   a plurality of electromagnetic coils, each mounted on separate cores, and wherein each of the plurality of electromagnetic coils are mounted on separate coil housings of ferromagnetic material which are magnetically isolated from each other but in electrical continuity, wherein the coil housings are mounted circularly on the axle, wherein each of said coils has a winding axis tangential to a direction of rotation of the machine;   a plurality of sets of peripheral and sector magnets, said magnet sets mounted circularly and positioned adjacent to the coils with each magnet set having pole faces of two of said peripheral magnets facing radially and orthogonal to the sector magnets; and   wherein said plurality of electromagnetic coils and said plurality of magnet sets are engaged for relative rotation there between.   
     
     
       8. The machine of claim 7 wherein the magnet sets are mounted in a housing, said housing secured on bearing sets engaged with said axle thereby enabling relative rotation between the housings and the axle. 
     
     
       9. The machine of claim 7 wherein the coils are engaged with the axle. 
     
     
       10. The machine of claim 7 wherein the peripheral magnets each have at least two chamfered edges. 
     
     
       11. A rotating electromagnetic machine comprising:
 an axle;   a plurality of electromagnetic coils, each with separate cores, and wherein each of the plurality of electromagnetic coils are mounted on coil housings of ferromagnetic material magnetically isolated from each other but in electrical continuity, wherein the coil housings are mounted on the axle, wherein each of said coils has a winding axis tangential to a direction of rotation of the machine;   a plurality of sets of peripheral and sector magnets, said magnet sets positioned adjacent to the coils and at least one of said peripheral magnets positioned orthogonal to the sector magnets;   wherein said plurality of electromagnetic coils and said plurality of magnet sets are engaged for relative rotation between the coils and the sets of magnets.   
     
     
       12. The machine of claim 11 wherein each said magnet sets has two of said sector magnets in mutually opposing and facing positions. 
     
     
       13. The machine of claim 11 configured as a motor. 
     
     
       14. The machine of claim 11 configured as a generator. 
     
     
       15. The machine of claim 11 wherein the electromagnetic coils are wound with insulated conductive wire. 
     
     
       16. The machine of claim 11 wherein the electromagnetic coils are wound with insulated flat conductive strip. 
     
     
       17. The machine of claim 11 wherein the electromagnetic coils are joined in electrical parallel interconnection. 
     
     
       18. The machine of claim 11 wherein the electromagnetic coils are formed from a solid block of conductive material. 
     
     
       19. The machine of claim 11 wherein the electromagnetic coils are mounted on one of the rotating and non-rotating aspects of the machine. 
     
     
       20. The machine of claim 11 wherein the magnet sets are mounted on one of the rotating and the non-rotating aspects of the machine.

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