Pipeline inspection vehicles

Details Pipeline inspection vehicles Pipeline inspection vehicles

G - Physics

01

B

33/161, 33/183

G01B 3/12 (2006.01) B08B 9/04 (2006.01) G01B 3/26 (2006.01) G01M 3/00 (2006.01) G01N 27/82 (2006.01)

Patent

CA 1143554

Abstract of the Disclosure A pipeline inspection vehicle has at least one resilient driving cup mounted around the body of the vehicle so as to contact the interior wall of the vehicle and thus provide a pressure differential across the driving cup which will propel the vehicle along the pipeline. An annular array of ducts extends through the body of the vehicle to by-pass fluid through the driving cup, each duct being provided with a control valve for regulating the flow of fluid through the duct. A control arrangement is provided for opening and closing the control valves in dependence on the speed of the vehicle, thereby to adjust the speed of the vehicle in accordance with a desired speed.

380623

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