GB165413A - Electric motors for operation with high frequency currents - Google Patents

Abstract

165,413. Plauson's Forschungsinstitut Ges., (Assignees of Traun's Forschungslaboratorium). June 23, 1920, [Convention date]. Influence machines; alternating-current motors; high-frequency machines. - An electric motor adapted to operate with high-frequency currents comprises a stator and rotor formed without iron and each provided with a number of condensers and inductances forming tuned oscillation circuits. The stator oscillation circuits b, Fig. 1, are connected to a source of electromagnetic oscillations through condensers 5<a>, 6<a> and a transformer 10. Between the circuits b are arranged additional stator oscillation circuits a. Each oscillation circuit consists of two concentrics tubes joined together at opposite ends by a conductor, and in the case of the circuits b an additional tube or bar is placed in the centre of each condenser and conductively connected to the source of excitation. The condenser tubes may take the form of spirals in order to increase the inductance of the oscillation circuits. The separate oscillation circuits on the rotor may either be insulated from one another or connected together through one or more metal rings. According to the Specification as open to inspection under Sect 91 (3) (a) the oscillatory circuits a may be directly excited from the supply circuit in parallel with the circuits b, there being two distributing conductors instead of the one shown on the outside of Fig. 1; (2) the separate elements of the stator and rotor oscillatory circuits may be similar to Haefner-Alteneck coils, and these coils may be connected together in series, in parallel or in series-parallel. This subject-matter does not appear in the Specification. as accepted.