Invention Grant
- Patent Title: Subsea valve actuator apparatus
- Patent Title (中): 海底阀致动器装置
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Application No.: US12157334Application Date: 2008-06-09
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Publication No.: US08087424B2Publication Date: 2012-01-03
- Inventor: David D Swartzentruber , Tushar Kulkami
- Applicant: David D Swartzentruber , Tushar Kulkami
- Agent David J. Archer
- Main IPC: F16K17/36
- IPC: F16K17/36

Abstract:
A subsea valve actuator apparatus is disclosed for actuating a subsea valve. The valve actuator apparatus includes a housing which defines an enclosure and a rim. A cover cooperates with the rim for sealing the enclosure. A gearbox is disposed within the enclosure the gearbox including a worm wheel which is connected to the subsea valve for actuating the valve. The gearbox includes a seal which is disposed between the worm wheel and the housing for sealing the worm wheel relative to the housing so that lubricant disposed within the enclosure for lubricating the gearbox is sealed within the enclosure. A pressure compensator is disposed within the enclosure for maintaining pressure of the lubricant disposed within the enclosure at substantially the same pressure as the pressure of seawater outside the gearbox.
Public/Granted literature
- US20090072179A1 Subsea valve actuator apparatus Public/Granted day:2009-03-19
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