Method and device for regulating a pressure in a hydraulic system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8156953
APP PUB NO 20080223467A1
SERIAL NO

12075907

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention relates to a method for regulating a pressure in a hydraulic system for operating at least one actuator in a subsea installation, having a fluid supply line (102) connected to a source of pressurized fluid (101) at a remote location delivering fluid at a constant pressure to the subsea installation, comprising first and second control valves (103, 105) controlled by an electronic control unit (107), and at least one pressure sensor (106) and an accumulator (104) arranged between the first and second control valve (103, 105), where the pressure in the fluid supply line (102′) to the actuator is regulated by regulating the pressure in the accumulator (104) by adding fluid from the source of pressurized fluid (101) through the first control valve (103) if the pressure is too low or releasing pressure through the second control valve (105) to a fluid return line (120) if the pressure is too high and thereby establishing the desired pressure for operating the actuator. The invention also relates to a device for performing the method.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
FMC KONGSBERG SUBSEA ASKONGSBERG40

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tveita, Johannes Tore Kongsberg, NO 1 7

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (2)
* 6202753 Subsea accumulator and method of operation of same 46 1998
* 6983592 Mobile working machine 5 2002
 
NATIONAL OILWELL VARCO, L.P. (2)
* 7926501 Subsea pressure systems for fluid recovery 16 2007
* 2008/0185,046 Subsea pressure systems for fluid recovery 23 2007
 
MAC VALVES, INC. (1)
* 6095184 Pressure regulator with integrated control valve, adjustable downstream pressure build and quick exhaust 6 1999
 
MANNESMANN REXROTH GMBH (1)
* 5070695 Hydrostatic drive system 22 1988
 
NORRISEAL-WELLMARK, INC. (1)
* 6298767 Undersea control and actuation system 10 2000
 
HUSCO INTERNATIONAL, INC. (1)
* 7905088 Energy recovery and reuse techniques for a hydraulic system 17 2007
 
BAROID TECHNOLOGY, INC. (1)
* 4923008 Hydraulic power system and method 30 1989
 
HYDRIL USA MANUFACTURING LLC (1)
* 6102673 Subsea mud pump with reduced pulsation 115 1999
 
ADVANCED ENERGY SYSTEMS, INC. (1)
* 4387783 Fuel-efficient energy storage automotive drive system 36 1980
 
Dynamic Hydraulic Systems, Inc. (1)
* 4761953 Hydraulic elevator mechanism 16 1986
 
BLUE LEAF I.P., INC. (1)
* 7513521 Suspended drawbar control with selectable operating modes 4 2006
 
FMC TECHNOLOGIES, INC. (3)
* 7137450 Electric-hydraulic power unit 25 2004
* 7159662 System for controlling a hydraulic actuator, and methods of using same 16 2004
* 2008/0264,646 Modular Actuator for Subsea Valves and Equipment, and Methods of Using Same 7 2005
 
ADVICS CO., LTD. (1)
* 2005/0012,390 Vehicle motion control apparatus 2 2004
 
HALLIBURTON COMPANY (1)
* 5238070 Differential actuating system for downhole tools 65 1992
 
WELLDYNAMICS, INC. (1)
2006/0254,763 Single line control module for well tool actuation 5 2006
 
VETCO GRAY INC. (1)
* 5188180 Hydraulic circuit for a well tool 11 1991
 
SCHLUMBERGER TECHNOLOGY CORPORATION (2)
* 4442902 Remote hydraulic control method and apparatus, notably for underwater valves 25 1981
* 7306043 System and method to control multiple tools through one control line 37 2004
 
UNISYS CORPORATION (1)
* 4880060 Valve control system 65 1988
 
FSSL, Inc. (1)
* 4497369 Hydraulic control of subsea well equipment 16 1981
 
Varco Shaffer, Inc. (1)
* 6192680 Subsea hydraulic control system 37 1999
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 2011/0005,250 Switching pressure regulator 2 2010
 
FRAMO ENGINEERING AS (2)
* 9097267 Pressure intensifier system for subsea running tools 2 2010
* 2012/0216,889 PRESSURE INTENSIFIER SYSTEM FOR SUBSEA RUNNING TOOLS 0 2010
 
NATIONAL OILWELL VARCO, L.P. (1)
* 8727018 Charging unit, system and method for activating a wellsite component 3 2013
 
DIAMOND OFFSHORE DRILLING, INC. (2)
* 8490705 Hydraulic control system monitoring apparatus and method 4 2010
* 2011/0098,946 HYDRAULIC CONTROL SYSTEM MONITORING APPARATUS AND METHOD 0 2010
 
HYDRIL USA MANUFACTURING LLC (1)
* 9175538 Rechargeable system for subsea force generating device and method 0 2010
 
CAMERON INTERNATIONAL CORPORATION (1)
* 2015/0129,233 Assembly and System Including a Surge Relief Valve 1 2013
 
ONESUBSEA IP UK LIMITED (1)
* 9580995 Controlled pressure equalization 0 2014
* Cited By Examiner

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