| 摘要 |
<p>A seal seat cleaning tool comprises a hydraulic vane motor 3 and a disk shaped cleaning head 2 which fits concentrically over at least a substantial part of the motor 3 and is arranged to be rotated or oscillated by the motor 3. The cleaning head 2 may be a brush and the motor 3 is preferably a constant displacement hydraulic vane motor. The tool can be used in the subsea oil and gas industry.</p> |
