PIPE LINE CONNECTING UNIT Russian patent published in 2001 - IPC

FIELD: mechanical engineering; pipe lines working at high temperatures and vibrations; systems supplying air from turbo-compressor to internal combustion engines. SUBSTANCE: connecting unit has metal bellows with two connecting end sections. Inner diameter of end sections exceeds that of bellows corrugations; end sections of bellows are engageable with cavities of respective extreme corrugations forming shoulder no less than 1 mm in height. Inner surfaces of end sections have end grooves, at least two on each section. Besides that, each cylindrical end section of bellows has at least three longitudinal slots smoothly distributed over its perimeter. EFFECT: enhanced durability, reliability and maintainability of pipe lines. 6 cl, 2 dwg