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U.S. Department of Energy
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Riser tensioning wave and tide compensating system for a floating platform

Patent ·
OSTI ID:6932713
A riser tensioner cylinder is provided with a hollow piston rod which forms a second cylinder in which a ram is reciprocated. The free end of the ram is connected to a link which in turn is connected to the end of the riser for providing tension on the riser. The ram reciprocates in the second cylinder under constant pressure to compensate for wave action on the floating platform and the second cylinder is automatically positioned within the first cylinder for adjustment for tide, vessel offset or other infrequent but variable factors.
Assignee:
Western Gear Corp
Patent Number(s):
US 4222341
OSTI ID:
6932713
Country of Publication:
United States
Language:
English

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