Electricity: single generator systems – Generator control – Acyclic or homopolar-type generator
Patent
1977-12-22
1979-04-24
Duggan, Donovan F.
Electricity: single generator systems
Generator control
Acyclic or homopolar-type generator
310178, 310219, H02P 900
Patent
active
041514556
ABSTRACT:
A unipolar dynamoelectric machine has a divided housing and uses a liquid metal to effect variable resistance control of the machine current. The machine includes a stator comprising a housing having first and second portions and a field coil. The housing portions are electrically insulated from one another and together define a chamber having an axis that is coincident with the axis of the annular field coil. A rotor is journalled in the housing and a control member extends into a recess in the rotor. The rotor rotates about the control member and is spaced from the stator and from the control member. The spacing produces annular spaces into which a liquid metal may be forced by an expandable bellows arrangement. Current flow in the machine is through the control member, the space between the control member and the rotor, the rotor, the space between the rotor and the stator, and the stator. The amount of liquid metal in the annular spaces between the control member and rotor and between the rotor and stator determines the amount of current flow and the machine output characteristics.
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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