Multiple pole electromagnetic propulsion system with...

Details Multiple pole electromagnetic propulsion system with... Multiple pole electromagnetic propulsion system with...

2008-07-15

2008-07-15

Eldred, John W (Department: 3641)

Ordnance

Accelerating

C124S003000

Reexamination Certificate

active

07398722

ABSTRACT:
An electromagnetic propulsion system is disclosed having separate rails for ballistic guidance and for carrying current. In this system, one or more pairs of ballistic guidance rails are provided, with each ballistic guidance rail having a pair of current carrying rails joined to it to form a combined rail. Each combined rail is separated electrically from adjacent combined rails by electrically insulating blocks. Each of the current carrying rails in a given combined rail pair have the same electrical polarity, and the polarities alternate between adjacent combined rails. Armatures contact current carrying rails to complete the circuit to generate the accelerating Lorentz force on the armatures. Bore riders on the sabot and/or projectile are in contact with the ballistic guide rails. Separation of the current carrying and ballistic guidance functions increases resistance of the system to rail movement and bending, as well as reduced wear/damage to the rails. In further embodiments, a circumferential over wrap providing compressive force on the rails further increases resistance of the system to rail movement and bending.

REFERENCES:
patent: 4433608 (1984-02-01), Deis et al.
patent: 4858513 (1989-08-01), Kememy
patent: 5133242 (1992-07-01), Witt
patent: 5431083 (1995-07-01), Vassioukevitch
patent: 5856630 (1999-01-01), Meger

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