초록 ▼

An alternator/synchronous motor structure provides varying-reluctance paths for radially directed, unidirectional magnetic fields by means of a unique rotor-stator configuration in which inner- and outer-rotor poles and a rotor pole-connecting means surround one end and the inner- and outer-cylindri

An alternator/synchronous motor structure provides varying-reluctance paths for radially directed, unidirectional magnetic fields by means of a unique rotor-stator configuration in which inner- and outer-rotor poles and a rotor pole-connecting means surround one end and the inner- and outer-cylindrical surfaces of a hollow cylindrical stator. At least one of the inner or outer poles includes at least one field concentrator member. Optional excitation field may be provided by a stationary winding requiring no brushes for energizing or by permanent magnetization.

대표청구항 ▼

An alternating-current, synchronous machine structure including a rotor and a stator; wherein said rotor includes a cylindrical inner-pole member, a cylindrical outer-pole member, an annular pole-connecting means to which said pole members are attached concentrically on one side, and a concentricall

An alternating-current, synchronous machine structure including a rotor and a stator; wherein said rotor includes a cylindrical inner-pole member, a cylindrical outer-pole member, an annular pole-connecting means to which said pole members are attached concentrically on one side, and a concentrically attached rotor positioning means; wherein said stator includes a hollow cylindrical stator core having inner- and outer-cylindrical surfaces, a plurality of phases alternating-current windings mounted on said stator core, a concentrically attached stator positioning means for engaging said rotor positioning means, and a magnetic field winding; wherein said field winding is attached to the end of said cylindrical stator core such that said field winding is located between said pole-connecting means and said core; wherein at least one of said cylindrical pole members further includes at least one magnetic field concentrator member; wherein said rotor is rotatably and concentrically positioned with respect to said stator means by said rotor positioning means and said stator positioning means such that an air gap is formed between said inner-pole member and said inner-cylindrical surface of said stator core and such that an air gap is formed between said outer-pole member and said outer-cylindrical surface of said stator core; wherein said magnetic field concentrator causes a magnetic flux density to be non-uniform around at least one of said cylindrical surfaces; and wherein the pole members and at least the portion of said pole-connecting means between said pole members further include material having relatively high magnetic permeability.