FIELD: transport.
SUBSTANCE: invention relates to motor drives for bicycles. Proposed motor drive comprises one or several reversible permanent-magnet machines fitted on one shaft (3) or coupled via couplings. Every said machine comprises annular stator (1-1), (2-1) with permanent magnet (1-3), (2-3) made up of a section of hollow torus with C-like slot arranged on its inner side. One or two windings are fitted on edges of rotor (1-2), (2-2) to displace in said C-like slot. Winding circular arc length equals that of permanent magnet (1-3), (2-3). Said windings are connected with constant current source via current conducting rings, brushes arranged on stator vase, and collectors. Stators (1-1), (2-1) are turned relative to each other.
EFFECT: simplified design and smaller dimensions.
6 dwg
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