Improved thermionic electric converters

H - Electricity – 01 – J

Patent

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H01J 45/00 (2006.01)

Patent

CA 2276510

An improved thermionic electric converter (200) uses a wire grid cathode (220) to provide a larger surface area for electrons to boil off. Alternately or additionally, the larger electron emission surface area can be achieved by using a curved electron emission surface. A laser (242) provides quantum inteference to electrons just before they reach the anode, thereby lowering their energy levels such that they more readily are captured by the anode (206). The arrangement provides improved conversion efficiency and reduced electron scatter.

Ce convertisseur électrique thermo-ionique amélioré (200) utilise une cathode grille à câble (220) offrant une plus grande superficie utile, ce qui facilite le détachement des électrons par vaporisation. De façon différente ou complémentaire, l'accroissement de cette superficie d'émission d'électrons peut être obtenu par le biais d'un cintrage de la surface d'émission d'électrons. Un laser (242) assure une interférence de quantum aux électrons juste avant qu'ils n'atteignent l'anode, ce qui réduit leurs niveaux d'énergie de telle sorte qu'ils sont plus facilement capturés par l'anode (206). Ce dispositif qui accroît le rendement de la conversion, réduit également la diffusion d'électrons.

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