WELL ELECTRIC GENERATOR Russian patent published in 2008 - IPC E21B47/22 H02K5/12 

FIELD: electricity, electrical engineering.

SUBSTANCE: invention refers to electrical engineering field, specifically to electric machine and is designed for power generators of well logging equipment. Technological result achieved by application of this invention implies increase of capacity and life time of electric generator at simultaneous reduction of its diametric dimensions. Well electric generator consists of stator, fastener assembly, rotor with one or several groups of permanent magnets, kinematically coupled with magnets movement gear and applicable exciting windings. Substance of invention implies that magnets movement gear of well electric generator is designed so that it is possible to generate reciprocating motion, and is equipped with return valve in stator exposed face, piston in front part inside of stator, holes in stator side wall opposite piston and return spring under rotor after end.

EFFECT: increase of capacity and life time of electric generator at simultaneous reduction of its diametric dimensions.

6 cl, 1 dwg