<p>A hydraulic blowout preventer operator comprises a first piston rod coupled to a closure member. The operator further comprises a first operator housing coupled to a bonnet and a head. The first piston rod extends through the bonnet into the first operator housing where is couples to a first piston disposed within the first operator housing. The operator further comprises a second piston rod coupled to the closure member. The second piston rod has a longitudinal axis that is parallel to a longitudinal axis of the first piston rod. The second piston rod extends through the bonnet into a second operator housing and is coupled to a second piston that is disposed within the second operator housing.</p>
申请公布号
WO2008024265(A2)
申请公布日期
2008.02.28
申请号
WO2007US18166
申请日期
2007.08.15
申请人
CAMERON INTERNATIONAL CORPORATION;WHITBY, MELVYN, F.;MANGAN, JOHN, T.