HIGH-VOLTAGE BOREHOLE GENERATOR Russian patent published in 2011 - IPC E21B47/00 H02N2/00 

FIELD: electricity.

SUBSTANCE: high-voltage borehole generator is equipped with a protective body, an electrical connection, at least with one fixing unit, a rotor with a hydraulic turbine and a device of mechanical power conversion into electric one. The device of mechanical power conversion into electric one is made as a machine generator and a piezogenerator connected by electric wires. At the same time the piezogenerator is arranged as a pack of piezoelectric plates and a device of vibration generation, using a magnetostrictive effect and comprising a winding and a magnetic core, installed inside it and resting with its end against the pack of piezoelectric plates via a flexible membrane. Between the rotor and the device of mechanical power conversion into electric one there is a magnetic coupling, comprising a master and a slave half-couplings. Between the master and the slave half-couplings there is a tight partition, comprising parts of magnetic permeable material. At the same time the master half-coupling is connected to the rotor, and the slave one - to the shaft one. On the upper end of the rotor there is a hole for lubricating liquid filling into the cavity of the master half-coupling.

EFFECT: increased reliability and capacity of generator with reduction of diametrical dimensions and weight of power generator, simplification of its design.

2 cl, 4 dwg