发明授权
- 专利标题: Locking device
- 专利标题(中): 锁定设备
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申请号: US14125033申请日: 2011-06-10
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公开(公告)号: US09494252B2公开(公告)日: 2016-11-15
- 发明人: Klaus Biester , Norbert Lenz
- 申请人: Klaus Biester , Norbert Lenz
- 申请人地址: GB London
- 专利权人: OneSubsea IP UK Limited
- 当前专利权人: OneSubsea IP UK Limited
- 当前专利权人地址: GB London
- 代理机构: Hrdlicka Chamberlain
- 国际申请: PCT/EP2011/002859 WO 20110610
- 国际公布: WO2012/167808 WO 20121213
- 主分类号: F16K37/00
- IPC分类号: F16K37/00 ; E21B33/06 ; F15B15/28 ; F15B15/26 ; F16K31/04
摘要:
A locking device is used for locking at least a piston associated with an operating element of a valve, a choke, a blowout preventer or some other unit used in the field of oil/natural gas drilling and/or oil/natural gas production. The locking device comprises a sleeve, which is axially displaceable relative to the piston and which is threadedly engaged with a rotatably supported rod for displacement in an axial direction. The rod is drivingly connected to a motor. In order to be able to determine, by means of simple structural measures, the position of the piston for each of its positions in a sufficiently precise and reproducible manner, the locking device is provided with a position sensor, which extends from a fixed point through a longitudinal bore of the lock rod up to the hydraulic piston and by means of which a distance between the piston and the fixed point can be detected.
公开/授权文献
- US20140251468A1 Locking Device 公开/授权日:2014-09-11
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