VIBRATORY PROPULSIVE DEVICE FOR PIPELINES Russian patent published in 2003 - IPC

FIELD: pipeline transport. SUBSTANCE: invention can be used in special pipeline transport lines as traction devices. Proposed vibratory propulsive device contains at least length of pipe and at least two unbalance weights. Length of pipe is provided with thread on its outer surface to be turned into mating thread on inner surface of pipeline. Clearance is left between threaded surface of pipe length and corresponding surface of pipeline, and said length of pipe is provided with rotating axle installed in bearings. Bearing races are rigidly coupled with length of pipe, each unbalance weight is mounted on said axle near its end of pipe length. Unbalance weights are turned through 180^o relative to each other. EFFECT: simplified design. 2 dwg