Improved device comprising artificially-cooled blocking-layer electrode systems

摘要

543,572. Asymmetrically-conducting resistances. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). May 30, 1940, No. 9514. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec, 3, 1940.] [Class 37] A rectifier or like blocking-layer electrode system is immersed in a liquid, for cooling purposes, which boils at the maximum admissible working temperature. The units 1 are spaced. apart and may be in thermal contact with plates 4 through heat-conducting distance pieces 5. The casing 6 may have cooling ribs 8, 8<1>, and a fan 10 may provide a draught. In a modification a water cooled piping may be provided for condensing the vaporized liquid. The temperature of boiling may be adjusted by altering the pressure. Various suitable liquids with their boiling points are mentioned.