DEVICE TO MOVE INSIDE PIPELINE (VERSIONS) Russian patent published in 2011 - IPC F17D5/00 F16L55/26 

FIELD: transport.

SUBSTANCE: proposed device relates to electrical engineering and transportation and may be used to displace diagnostics hardware and various device inside pipeline. Proposed device comprise three rings from nonelastic magnetically conducting material interconnected by flexible linkage. Said rings are made up of two semi-rings with cutouts. Note here that one ring is arranged so that said cutouts are turned through 90° relative to cutouts of the other ring. Semi-rings of central ring are connected by nonelastic nonmagnetic material while semi-rings of the other rings are interconnected by flexible material. Coil is wound on each semi-ring in its grooves so that do not extend beyond outer radius of semi-ring. Said coil is connected with control system. In compliance with another version, proposed device comprises two rings made from magnetically conducting material connected by flexible linkage. Said rings consist of two nonelastic semi-rings with grooves. Note here that one ring is arranged so that cutouts are turned through 90° relative to cutouts of the other ring. Note also that coil is wound on each semi-ring in its grooves so that do not extend beyond outer radius of semi-ring. Said coil is connected with control system.

EFFECT: higher reliability thanks to magnetically conducting rings made from nonelastic material.

2 cl, 3 dwg