COMPLEX FOR CONTINUOUS LASER WELDING OF PIPELINES Russian patent published in 1997 - IPC

FIELD: welding laying of pipelines in tundra, desert, steppe. SUBSTANCE: all equipment of complex is placed inside pipeline to be welded. Equipment includes jet engine. Blade of engine compressor provides high velocity air stream, thus cooling the heat exchanger placed out side laser body. Shaft of engine is also shaft of generator which supplies power for entire complex. Pumping through device mounted on end of shaft provides transfer of working mixture in laser system. EFFECT: enlarged operating capabilities, improved reliability. 5 cl, 2 dwg