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Pipeline pig
申请公布号：US8407844(B2)
申请号：US20090575965
申请日期：2009.10.08
申请公布日期：2013.04.02
发明人：BOE KETIL
分类号：B08B9/32;B08B9/04;F16L55/34
主分类号：B08B9/32
摘要：A device for travelling along a pipeline having fluid flowing along it comprises a turbine for extracting power from the fluid flow and using that power to move the device along the pipeline against the fluid flow. The device is arranged in a series of coupled modules.