Invention Grant
- Patent Title: Subsea dynamic load absorber
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Application No.: US15505066Application Date: 2015-08-21
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Publication No.: US10295007B2Publication Date: 2019-05-21
- Inventor: Murray Jamieson McIntosh
- Applicant: Subsea 7 Limited
- Applicant Address: GB Sutton
- Assignee: Subsea 7 Limited
- Current Assignee: Subsea 7 Limited
- Current Assignee Address: GB Sutton
- Agency: Levy & Grandinetti
- Priority: GB1414983.5 20150822
- International Application: PCT/GB2015/052438 WO 20150821
- International Announcement: WO2016/027103 WO 20160225
- Main IPC: F16F9/10
- IPC: F16F9/10 ; F16F9/36 ; B63B21/00 ; B63B21/50 ; B63B35/40 ; B63C11/44 ; E21B19/00

Abstract:
A load absorber dampens relative movement between subsea bodies. The load absorber is cooperable with an actuating member such as a male piston element or a female cup on an opposed subsea body. The load absorber comprises a hollow structure defining an internal flow path for water. A flow restrictor acting on the flow path restricts a distal flow of water along the flow path from a proximal opening, caused by convergence between the actuating member and the load absorber. The flow restrictor comprises a shuttle element to restrict the flow path that is mounted to the structure for automatic movement from a first state to a second state in response to an increase in water pressure at the proximal opening. In the first state, the shuttle element effects greater restriction of the flow path than in the second state.
Public/Granted literature
- US20170241501A1 Subsea Dynamic Load Absorber Public/Granted day:2017-08-24
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