Electrical generator or motor structure – Non-dynamoelectric – Thermal or pyromagnetic
Patent
1999-01-18
2000-03-14
Ramirez, Nestor
Electrical generator or motor structure
Non-dynamoelectric
Thermal or pyromagnetic
419 19, 376321, H02N 300, H02N 1000
Patent
active
06037697&
ABSTRACT:
A multiple cell thermionic converter having a generally tubular member of electrically conductive refractory metal with an internal cavity and a tubular envelope of electrically conductive refractory metal disposed in surrounding relationship to such generally tubular member. Electrically insulating ceramic material is disposed upon sections of facing surfaces of the envelope and tubular member, which is in the form of a body that has a central zone of plasma-sprayed refractory metal oxide selected from the group consisting of scandia, hafnia, zirconia and alumina, and a pair of flanking outer zones made of mixtures of the refractory oxide and particulate refractory metal. Refractory metal electron emitters and collectors are supported upon the ceramic bodies and juxtaposed in pairs with an annular gap therebetween to form a plurality of thermionic cells. A thin tube of refractory metal is bonded to the ceramic body by hot isostatic pressing, which also densifies the ceramic, and then machined to create spaced-apart emitters/collectors. Connectors connect the collector of one thermionic cell to the emitter of the adjacent cell to form a series interconnection with the emitter of the cell at one end and the collector of the cell at the opposite end being provided by a second section of the tubular member and the tubular envelope.
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Begg Lester LeRoy
Streckert Holger Heinrich
General Atomics
Ramirez Nestor
Tamai K. Eizo
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