| 摘要 |
In a brushless generator having an exciter rotor (18) which generates an AC voltage that is rectified to provide a DC field for a main generator rotor (16), the rectifiers are mounted to revolve with the rotor and be fluid and conductively cooled to provide a dynamo operative without brushes, slip rings or commutators. The rectifier is formed by a diode assembly (24) including layers of insulating and conducting material that are mounted concentrically on the inside wall of a hollow rotor shaft (20) so that diode chips are stressed only in compression due to centrifugal forces of rotation. An input driven shaft (32) may be accommodated interiorly of the diode assembly (24) along the axis of the hollow rotor shaft (20). The dynamo electric machine may also be operated as a brushless motor.
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