| 摘要 |
<p>A pig (1) for use with a tubular bore wherein the pig (1) is comprised of a body (2) which supports a plurality of turbine blades (3) wherein the blades (3) mechanically break down and remove debris from the tubular bore. The blades (3) have a profile which allows forward movement and rotation about a longitudinal axis when acted upon by a propulsion fluid travelling through the tubular. In an alternative embodiment the blades are mounted on a stabiliser body to allow simultaneous centralisation and cleaning.</p> |
