An accumulator for a subsea blowout preventer unit including a blowout preventer includes a body. The body includes a hydraulic fluid chamber and a gas chamber. The hydraulic fluid chamber has a smaller inner diameter than the gas chamber. The accumulator further includes a hydraulic fluid port in fluid communication between the hydraulic fluid chamber and the subsea blowout preventer, a hydraulic piston slidably and sealingly mounted in the hydraulic fluid chamber, and a charge piston slidably and sealingly mounted in the gas chamber. A pressure port receives pressure to provide a force on the opposite side of the charge piston from the hydraulic piston.
申请公布号
WO2010017200(A2)
申请公布日期
2010.02.11
申请号
WO2009US52709
申请日期
2009.08.04
申请人
CAMERON INTERNATIONAL CORPORATION;KOTRLA, JOHNNIE;KENNEDY, MAC;COOPER, NATHAN