Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1994-12-30
1997-05-06
Dougherty, Thomas M.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 95, 310 68B, H02K 4904, H02P 1500
Patent
active
056274220
ABSTRACT:
A brushless shaft mounted eddy current drive has a coil mounted to bearings by way of a coil mount. The bearings are located on a hub. The coil mount is anchored to a fixed object. The pole pieces are coupled together by a nonmagnetic material to form a cavity that receives the coil. In another embodiment, a brushless drive has a coil rotatably mounted in a cavity within the pole pieces. A rotary inductive coil is mounted to the pole pieces about a stationary inductive coil. Alternating current is provided to the stationary coil to induce current into the rotary coil. In still another embodiment, an alternator is used to induce current into the rotating coil. In still a further embodiment, a brushless drive incorporates a liquid conductive rotatable coupler in the hub. In still another embodiment, the brushless drive energizes the coil in the electromagnet by way of bearings. The bearings are mounted onto a shaft that is coupled to the electromagnet. The shaft is located at one end of the drive, while a motor shaft is received by the opposite end of the drive.
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