Low magnetic signature motor system

Details Low magnetic signature motor system Low magnetic signature motor system

2006-11-28

2006-11-28

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

Reexamination Certificate

active

07141903

ABSTRACT:
A low magnetic signature motor system (1) comprises a plurality of electric motors (2), a first shield (9) and a second shield (13). The electric motors are arranged with their associated magnetic moments (6, 7) forming a closed loop such that their net external magnetic field (5) is minimized The first shield comprises a material with a high electrical conductivity and substantially surrounds the electric motors such that the a.c. component of the magnetic field is reduced; and the second shield comprises a material with a high magnetic permeability and substantially surrounds the first shield such that the d.c. magnetic field is reduced.

REFERENCES:
patent: 4121126 (1978-10-01), Armor et al.
patent: 4359761 (1982-11-01), Papst
patent: 5661353 (1997-08-01), Erdman et al.
patent: 5859482 (1999-01-01), Crowell et al.
patent: 6373921 (2002-04-01), Kliman et al.
patent: 832177 (1975-12-01), None
patent: 2020118 (1979-11-01), None
patent: 057152560 (1982-09-01), None
patent: 362012364 (1987-01-01), None
Dobrodejev, et al., “Magnetically Quiet Shipboard-Type Electrical Equipment: Methods in Design and Manufacturing”, Oceans '98 Conference Proceedings, Nice, Sep. 28-Oct. 1, 1998, IEEE Oceans Conference, New York, IEEE U.S. vol. 3, pp. 1468-1472 (1998).
Kildisheve, “External Magnetic Field Active Compensation for Large Shipboard-type AC Machines,” Oceans 97 MTS/IEEE Conference Proceedings Halifax, NS, Canada Oct. 6-9, 1997, New York, NY USA, IEEE, US pp. 1496-1501 (1997).

Affiliated with

Also associated with

Rating

Low magnetic signature motor system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low magnetic signature motor system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low magnetic signature motor system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3655362