Magnetic Gears for Utility Actuation Gearbox Applications

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$79,441.00
Award Year:
2010
Program:
SBIR
Phase:
Phase I
Contract:
N68335-10-C-0544
Award Id:
98601
Agency Tracking Number:
N102-115-1128
Solicitation Year:
n/a
Solicitation Topic Code:
NAVY 10-115
Solicitation Number:
n/a
Small Business Information
1844 Old Mission Rd, Edgewater, FL, 32132
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
962948266
Principal Investigator:
Kent Davey
President
(386) 478-7125
kdavey@ieee.org
Business Contact:
Kent Davey
President
(386) 478-7125
kdavey@ieee.org
Research Institution:
n/a
Abstract
Although published magnetic gear designs have been demonstrated in various and sundry academic settings, none are viable for industrial scale / military applications. Yet the technology remains enticing. The favored solution involves a topology that capitalizes on a cycloidal operation, but with axial flux that allows the objectionable forces to be canceled. This favored topology operates with a single air gap between torque generating MMF sources and allows for a pseudo drive topology using a transverse (i.e., radial) flux operating in the strong normal direction. Note that the novel solution proposed has never appeared in literature and is proprietary to this team. This team has designed and constructed 3 versions of the planetary gear, the topology that has received the greatest attention in the literature. Two weaknesses are inherent to the operating principle. (1) It employs two air gaps, and (2) the central structure must be laminated and sustain torques equal to the sum of those on the high and low speed shafts. This team has just completed the construction of its 2nd generation axial flux cycloid gear. This topology can realize much higher torque ratios without cogging, and can be made to balance the primary forces the bearings.

* information listed above is at the time of submission.

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