Depth compensated subsea passive heave compensator
US7934561B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 8, 2008 |
| Grant date | May 3, 2011 |
| Priority date | — |
| Expiry date | Jun 24, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2201/31
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A depth compensated passive eave compensator comprises a first cylinder connected at its upper end to a vessel. A piston rod extends from a piston located within the first cylinder through the lower end thereof and is connected to subsea equipment. A second cylinder contains a compressed gas which maintains pressure beneath the piston of the first cylinder. The upper end of the first cylinder is connected to the upper end of a third cylinder having a piston mounted therein. A piston rod extending from the piston of third cylinder extends through the lower end thereof thereby applying the pressure of the sea to the piston of the third cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.