Electrical generator or motor structure – Educational or construction units or kits
Patent
1975-01-09
1976-09-28
Duggan, Donovan F.
Electrical generator or motor structure
Educational or construction units or kits
H01J 4500
Patent
active
039834239
ABSTRACT:
A gas-filled thermionic converter is provided with a collector and an emitter having a main emitter region and an auxiliary emitter region in electrical contact with the main emitter region. The main emitter region is so positioned with respect to the collector that a main gap is formed therebetween and the auxiliary emitter region is so positioned with respect to the collector that an auxiliary gap is formed therebetween partially separated from the main gap with access allowed between the gaps to allow ionizable gas in each gap to migrate therebetween. With heat applied to the emitter the work function of the auxiliary emitter region is sufficiently greater than the work function of the collector so that an ignited discharge occurs in the auxiliary gap and the work function of the main emitter region is so related to the work function of the collector that an unignited discharge occurs in the main gap sustained by the ions generated in the auxiliary gap. A current flows through a load coupled across the emitter and collector due to the unignited discharge in the main gap.
REFERENCES:
patent: 2510397 (1950-06-01), Hansell
patent: 3021472 (1962-02-01), Hernquist
patent: 3238395 (1966-03-01), Sense
patent: 3239745 (1966-03-01), Hernquist
patent: 3267308 (1966-08-01), Hernquist
patent: 3381201 (1968-04-01), Angello
patent: 3470393 (1969-09-01), Moncorge
patent: 3578992 (1971-05-01), Paine
Britt Edward J.
Rasor Ned S.
Carlson Dean E.
Churm Arthur A.
Duggan Donovan F.
Gottlieb Paul A.
The United States of America as represented by the United States
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