초록 ▼

An electrical motor includes a stator housing having a toroidally shaped inner cavity. A plurality of stator electromagnets are mounted along the cavity wall in a plurality of parallel helical paths. A plurality of rotor members are rotatively mounted at fixed, spaced-apart angular positions around

An electrical motor includes a stator housing having a toroidally shaped inner cavity. A plurality of stator electromagnets are mounted along the cavity wall in a plurality of parallel helical paths. A plurality of rotor members are rotatively mounted at fixed, spaced-apart angular positions around a ring shaft whose axis is coincident with the axis of the toroidal cavity. Each rotor member includes a plurality of permanent magnets mounted around its circumference. A linear output shaft has one end connected to the ring shaft and its other end extending out of the stator housing. By properly energizing the stator electromagnets, electromagnetic fields set up by them and the rotor magnets interact to produce torque which causes the rotor members to rotate about the ring shaft and to precess laterally causing the ring shaft, and attached linear output shaft, to rotate relative to the stator housing. The toroidal configuration of the motor provides a larger volume electromagnetic field interaction space than conventional cylindrical motors which yields higher output powers and higher torques. The motor, which also has an inherent speed reduction feature, may be operated in reverse as an electrical generator.

대표청구항 ▼

[ What is claimed is:] [1.] An electrical machine comprising:a. a stator defining a generally toroidal cavity, said toroidal cavity having a closed, ring-shaped axis, said stator including a plurality of electromagnetic field-producing stator elements arranged in one or more generally parallel helic

[ What is claimed is:] [1.] An electrical machine comprising:a. a stator defining a generally toroidal cavity, said toroidal cavity having a closed, ring-shaped axis, said stator including a plurality of electromagnetic field-producing stator elements arranged in one or more generally parallel helical paths along said cavity;b. a ring shaft mounted for rotation in said stator cavity, said ring shaft having an axis that is generally coincident with the axis of said stator cavity;c. a plurality of rotor members rotatively mounted at fixed, spaced-apart angular positions around said ring shaft, each of said rotor members being rotatable about said ring shaft and including a plurality of electromagnetic field-producing rotor elements for interacting with said stator elements of said stator; andd. a generally linear shaft having one end connected to said ring shaft and another opposite end extending out of said stator cavity.