| 摘要 |
PCT No. PCT/US95/13472 Sec. 371 Date May 2, 1997 Sec. 102(e) Date May 2, 1997 PCT Filed Oct. 12, 1995 PCT Pub. No. WO96/12337 PCT Pub. Date Apr. 25, 1996A brushless generator provides increased output by providing air-core coils (936,956) in place of ferrous coils in regions of the generator which operate at high frequencies. The air-core coils (936,956) enable the generator to rotate at speeds in excess of 24,000 rpm while continuing to operate efficiently because core losses, due to the use of traditional iron cores (e.g., hysteresis and eddy-currents), are virtually eliminated. In preferred embodiments, rotating air-core coils (936) pass through stationary electromagnet fields (920) that induce amplified AC currents in the coils. The AC currents are rectified (950) and fed to rotating electromagnets (922) which create rotating fields. A second set of air-core coils (956) is oriented such that they pass through the rotating fields, which induce an AC voltage which may be used as the output of the generator. |
