Electricity: single generator systems – Generator control – Acyclic or homopolar-type generator
Patent
1977-12-22
1979-05-08
Duggan, Donovan F.
Electricity: single generator systems
Generator control
Acyclic or homopolar-type generator
310219, 310178, H02P 900
Patent
active
041538684
ABSTRACT:
A unipolar dynamoelectric machine with variable resistance control of machine current. The machine includes a stator, a rotor rotating within an opening in the stator, and a control member. The rotor also rotates about a portion of the control member. A first annular space exists between the control member and the rotor, and a second annular space exists between the rotor and stator. A field coil within the stator provides a magnetic field that may be used in machine control. A liquid metal is used to control the current level in the machine. A forcing device is used to control the amount of liquid metal contained within the first and second annular spaces. This controls machine resistance and current flow. Preferably, the amount of liquid metal in the first annular space is inversely proportional to rotor speed and that in the second annular space is directly proportional thereto.
REFERENCES:
patent: 1635319 (1927-07-01), Gill et al.
patent: 3211936 (1965-10-01), Harvey
patent: 3854065 (1974-12-01), Rioux et al.
patent: 3989968 (1976-11-01), Hatch
patent: 4071795 (1978-01-01), Dobbing et al.
Brown Robert W.
Duggan Donovan F.
Ford Motor Company
Sadler Clifford L.
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