Electromagnetic rifle with spin-stabilized projectile

Patent · Tue Feb 02 04:00:00 EST 2021

OSTI ID:1805460

Timpson, Erik; Hartman, Seth

An EM driver for accelerating an object may be configured as an EM rifle for accelerating, rotating to spin-stabilize, and releasing a projectile. A core includes a stator coil, forward and reverse coils, a railed shaft, and a transfer shaft. The stator coil generates a first EM field, and the forward and reverse coils generate second and third EM fields which interact with the first EM field to accelerate the armature in forward and reverse directions, respectively. The railed shaft is elongated along a central axis through the armature and includes multiple rails arranged helically around a central shaft. The armature remains in contact with the rails during acceleration so as to impart a turning motion. The transfer shaft is physically coupled with and projects forwardly from the armature and transfers to the projectile the acceleration and the turning motion of the armature in the forward direction.

• Research Organization: Kansas City Plant (KCP), Kansas City, MO (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: NA0000622
• Assignee: Honeywell Federal Manufacturing & Technologies, LLC (Kansas City, MO)
• Patent Number(s): 10,907,928
• Application Number: 16/232,763
• OSTI ID: 1805460
• Country of Publication: United States
• Language: English