DEVICE FOR TRANSPORTATION OF LOADS ALONG PIPELINE OPPOSITE TO LIQUID OR GAS FLOW Russian patent published in 1999 - IPC

FIELD: pipeline transport. SUBSTANCE: device has housing with fitted-in bushings forming a row and installed for free rotation around housing and axial displacement along housing. Driving wheels, engaging with inner surface of pipeline, and blades are mounted on bushing at angle relative to longitudinal axis of pipeline. Driving wheels and blades on each preceding bushing are directed counterclockwise and on each following bushing, clockwise at the sane angle. Driving wheels can be mounted direct on blades. Possibility of axial displacement improves conditions of starting the device from rest. EFFECT: provision of effective transportation of loads along pipeline opposite to liquid or gas flow owing to improved conditions of starting the device from rest in initial stage of movement and prevention of rotation of housing. 2 cl, 2 dwg