Accession Number : ADD018330

Title :   Permanent Magnet Torque/Force Transfer Apparatus.

Descriptive Note : Patent, Filed 11 Oct 94, patented 29 Oct 96,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Cho, Chahee P ; Bedingfield, Ralph A

Report Date : 29 Oct 1996

Pagination or Media Count : 7

Abstract : A torque/force transfer apparatus which includes an annular ring having therein permanent first magnets side by side about the interior of the ring. The first magnets are arranged so as to alternate in polar orientation to present an inside circumference of alternating norm and south magnetic poles. A cylindrical central member has therein permanent second magnets side by side about the exterior of the central member. The second magnets are arranged so as to alternate in polar orientation to present an outside circumference of alternating north and south magnetic poles. A strut assembly is pivotally attached to a center of a side of the central member and has arms extending radially outwardly from the central member center and is provided with planetary members rotatably connected each to one of the arms. The planetary members each have therein permanent third magnets side by side about the exterior of the planetary member, the third magnets being arranged so as to alternate in polar orientation to present an outside circumference of alternating north and south magnetic poles. Each of the planetary members substantially bridges an annulus defined by the ring inside circumference and the central member outside circumference, whereby rotation of the central member causes, by magnetic flux, rotation of the planetary members which cause, by magnetic flux, rotation of the ring.

Descriptors :   *MAGNETIC DEVICES, *PATENTS, *TORQUE CONVERTERS, MAGNETIC FIELDS, ENERGY TRANSFER, ASSEMBLY, ROTATION, POLARITY

Subject Categories : Electricity and Magnetism
      Machinery and Tools

Distribution Statement : APPROVED FOR PUBLIC RELEASE