| 摘要 |
A deflector assembly of the kind used to pull one or more seismic streamers being towed by a seismic survey vessel out to a desired lateral offset from the vessel comprises a wing-shaped deflector body suspended by a cable or chain between a float. In order to prevent the cable or chain from breaking in rough weather, a shock absorber is included somewhere along its length, preferably with the deflector body or within the float. The shock absorber comprises a piston and cylinder assembly co-operating with a gas-filled accumulator acting as a spring. |
