POWER GENERATOR OF WELL LOGGING EQUIPMENT Russian patent published in 2008 - IPC E21B41/00 E21B47/00 H02K16/02 

FIELD: electricity, electrical engineering.

SUBSTANCE: invention refers to electrical engineering and can be applied in electric machines for power supply of well logging equipment. Technological result implies reduction of diametric dimensions and weight. Generator is equipped with container housing and at least one fastener assembly, electrical connection, main rotor with main turbine, stator, exciting winding and permanent magnets. Auxiliary rotor is equipped with spindle passing inside and is supported in line with main rotor. Turbine is birotating. Permanent magnets are mounted on main rotor, and exciting winding is inside of permanent magnets, on spindle of auxiliary rotor. Noncontact electric-power transmission device is designed as primary winding, mounted on spindle of auxiliary rotor, and secondary winding, mounted inside of stator. Exciting winding is wired to primary winding of noncontact electric-power transmission device. Both rotors are sealed hermetically relative to each other and relative to stator with face seals in stator. Stages of birotating turbine are mounted nearby in central part of generator. Stator consists of upper and lower parts, mounted respectively in upper and lower supports with canals for drilling agent. Winding is wired to electrical connection through holes in stator. Inner hollow of generator is lubricant filled. Lubricant passage is on the top, and electrical connection is on the bottom.

EFFECT: power generator of well logging equipment is improved due to reduction of diametric dimensions and weight.

5 cl, 1 dwg