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WO/2012/140178A1 |
The invention discloses a system and method for controlling a wellbore. The method comprises the steps of: providing a capping stack comprising a number of releasable modules, each module having a size and weight within predetermined lim...
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WO/2012/064017A2 |
The present invention relates to an intensifier for discharging a constant flow. The intensifier of the present invention comprises a hydraulic pump, a hydraulic motor, a supply passage, first control means, and second control means. The...
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WO/2012/059478A1 |
A hydraulic intensifier (1) comprises a reciprocating differential piston arrangement (3, 4, 4') and control means for controlling the supply of low pressure hydraulic fluid to the intensifier, said control means comprising at least one ...
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WO/2012/057672A1 |
A method and an arrangement for opening a valve (11) that is arranged for communicating with a space (10) with excess gas pressure phases, especially a cylinder space in an internal combustion engine. An opening movement is imparted to t...
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WO/2012/034165A1 |
An ultra high pressure pump comprising a servo motor coupled to a piston having a head arranged within a cylinder to define a pumping chamber, whereby the servo motor rotation causes reciprocal displacement of the piston to pressurise fl...
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WO/2011/104662A1 |
The invention relates to a linear hydraulic actuator which incorporates inside it a piston which can be reciprocally actuated by means of a distributor and a feedback positioning and reversing device. If during its uniform linear travel ...
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WO/2011/056245A1 |
A compact force multiplying actuator 10 and its associated valve 20 are disclosed. The actuator 10 and valve 20 include piston heads 31 and 32 and force multiplying load beams 52 and 53. Belleville springs 81 and 82 are disposed axially ...
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WO/2011/048213A2 |
A system to pressurize barrier fluid of a submersible installation to provide a differential pressure between the ambient pressure surrounding the submersible installation and the pressure of the barrier fluid internally in the submersib...
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WO/2011/048271A1 |
The invention relates to a method for transforming the pressures of a system operating with pressure medium to optimise the travel speeds and/or forces of tasks utilising pressure, area and flow ratios, employing valve structures and oth...
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WO/2011/012193A1 |
The invention relates to a pressure intensifier (1) with a pressure inlet (IN) on a primary side of the pressure intensifier (1) for receiving a primary-side fluid pressure (pΪN), a pressure outlet (H) on a secondary side of the pressur...
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WO/2011/008158A1 |
The present invention relates to a pressure transducer (40) for transforming a pressure of a fluid from one pressure level to another, comprising at least one pair of hydraulic rotating machines that are mutually mechanically interconnec...
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WO/2010/124708A1 |
The invention relates to an apparatus for hydraulically actuating processing machines like metal forming machines (72 to 77) and method, control and application of an apparatus for actuating said metal forming machines. The processing ma...
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WO/2010/106350A1 |
A high pressure intensifier system comprises a high pressure intensifier (3) for receiving hydraulic fluid from an input (1) and providing the fluid to an output (8) at a higher pressure than at the input; means (7) for monitoring the pr...
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WO/2010/066069A1 |
A fluid power device (100) includes a pressure auxiliary (140) and a flow restricting generator (120) connecting with the pressure auxiliary (140). The flow restricting generator (120) includes: a fluid storage tank having a fluid inlet ...
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WO/2010/051913A1 |
The invention relates to a hydraulic force transducer having a primary unit that has a primary piston, movable by a drive unit in a stationary primary cylinder, and having a secondary unit that has at least one secondary cylinder and at ...
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WO/2010/049594A1 |
The object of the invention is a method and an arrangement for storing energy, such as potential energy, and for using the stored energy in a fluid system, such as a hydraulic or pneumatic system, which fluid system comprises a fluid cyl...
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WO/2010/005896A1 |
A hydraulic pressure intensifier system (10) for developing a high pressure fluid jet that utilizes an electric motor (84) for both pressurizing a hydraulic fluid and for controlling the pressure and/or flow of the high pressure fluid je...
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WO/2010/003606A1 |
The invention provides a system and a method for hydraulic pressure transformation. According to the invention a hydraulic motor (4) is driven on the input side by a first hydraulic connection (1), and connected on the output side to a s...
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WO/2009/156018A1 |
The invention relates to a pressure conversion device, particularly for use in engine mounts, having a piston device (22, 24) that can travel in a housing (10), said piston device converting a high fluid pressure at low volume flow on th...
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WO/2009/152786A1 |
In order to increase the pressure of the pressure fluid in cylinders, particularly the hydraulic longwall working in underground mining and tunneling, a control device (21) is used, which is provided with appropriately controllable, unlo...
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WO/2009/112517A1 |
The pressure supply unit has a pressure generating assembly (10), which generates a supply pressure (PL) for the intermittent operation of a power screwdriver (11). So as to allow a tensioning cylinder unit (33) to be operated alternativ...
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WO/2009/107059A1 |
Unit constituted by a thrusting element 1 able to deliver a predetermined force and at least a receiving element 2. The receiving element 2 is placed on a path 3 on which it is constrained to slide, for example through rollers. A rod 4 i...
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WO/2009/068703A1 |
The invention relates to a pneumatic instant transducer containing a quick-action pneumatic valve designed to convert the potential energy of different pressurised gaseous working fluids into kinetic energy and different energy forms. Ac...
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WO/2009/034421A1 |
A multistage hydro -pneumatic system and methods for converting the potential energy of a pressurized gas, particularly air, into mechanical work when rotating a shaft (1) in one direction, and for producing compressed gas from the mecha...
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WO/2009/030793A1 |
The invention relates to a pressure-intensifying mechanism consisting of two chambers mounted one inside the other and including two cylinders and two pistons which are interconnected in a particular manner between the two chambers and w...
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WO/2008/107220A1 |
The invention relates to a fuel injection system (1) for an internal combustion engine, comprising at least one high-pressure fuel pump (5) supplying fuel to at least one high-pressure fuel accumulator (7), having a plurality of injector...
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WO/2008/056014A1 |
The invention relates to a liquid pressure converter for use in pumping systems without any external energy input. The system is based on pressure accumulators consisting of devices having an inlet tube and an outlet tube, in which a pre...
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WO/2008/019889A1 |
The invention relates to a pressure booster (1) for fluids, in particular hydraulic fluids, having a booster piston (2) which is embodied as a differential piston and having a control piston unit (5), wherein the pressure booster (1) is ...
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WO/2007/097661A1 |
The electrohydraulic servo drive comprises a hydraulic motor, a pump, a reduction valve, a two-cascade hydraulic amplifier with a controllable throttle in the first cascade and a distributor in the second cascade, a power limiter, a pres...
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WO/2005/118252A1 |
An actuator is disclosed, in particular, for a locking unit on an injection compression machine, comprising a hydraulic force translator (2), with two piston units (20, 38) moving relative to each other with different effective areas. Th...
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WO/2005/119068A1 |
The invention relates to general-purpose systems with transfer of fluids, in particular, gases, by changing their pressure and subsequent transforming it into the kinetic energy of the body (actuator, projectile, etc.). The proposed devi...
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WO/2005/035980A1 |
The invention relates to a hydrostatic piston engine comprising a cylinder barrel (43) inside of which a first group of cylinder bores (53.1) and a second group of cylinder bores (53.2) are made. The cylinder bores of the first group (53...
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WO/2004/072486A1 |
A method and corresponding cylinder (1) for pressure amplification in cylinders are disclosed, characterised in that a second pressurising piston (16) with a small piston rod (17) is arranged within the cylinder (1), in other words, with...
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WO/2004/048786A1 |
The invention concern a pressure amplifier that includes a low pressure inlet for supplying a medium at low pressure, a low pressure piston with a first operational area and at lesat one high pressure piston with a second operational are...
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WO/2004/038220A1 |
A fluid supply unit (1), in particular a hydraulic supply unit is disclosed, comprising a pressure generator (2) for the fluid, in particular a pump for hydraulic fluids and a pressure outlet (7). The aim of the invention is to broaden t...
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WO/2004/016942A1 |
The invention relates to a device for transmitting a displacement of an actuator to a setting element. Said device comprises two pistons (6, 7) that delimit two transmission chambers (10, 11) and a compensation chamber (22) with a housin...
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WO/2003/100385A1 |
Apparatus, and an accompanying method for use therein, that utilizes first (working) and second (stopping) servo-controlled hydraulic pistons (310, 313; 401, 413) wherein the stopping piston acts as a controlled mechanical stop for the w...
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WO2003027506B1 |
The invention concerns a pressure amplifying device for hydraulic circuit comprising means (1) (2) (3) for filling the circuit up to a predetermined pressure with a large flow rate, and beyond said pressure, for amplifying said pressure ...
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WO/2003/008076A1 |
Improvements in product water throughput from a reverse osmosis (RO) membrane achieved by thinner feed spacers in the RO element (22), enhanced recovery (ratio of permeate to feed), pressure recovery of the retentate fluid pressure oppos...
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WO/2003/002876A1 |
A booster allowing a pump to be reduced in size, eliminating the need of a selector valve, and emitting less noise, comprising two booster units (5, 5') and pressure pumps (11, 11') for feeding low pressure side fluid (A) to the booster ...
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WO/2002/086326A1 |
The present invention relates to a hydraulic pressurization system, in particular for application to pressurization devices operating in accordance with the high hydrostatic pressure principle. In particular, the present invention relate...
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WO/2002/084128A1 |
A pneumatic-hydraulic pressure amplifier (100) comprising a pneumatic cylinder-piston assembly (1, 2) operated by compressed air fed to said cylinder through a first inlet (10), a co-operated hydraulic cylinder-piston assembly (3, 4) the...
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WO/2002/053920A2 |
The invention relates to a pressure transformer (1). A movement of at least one piston (2) in at least one cylinder (3), as a result of a pressurisation, is transmitted to a transformer piston (4) in a pressure cylinder (5), by means of ...
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WO/2002/052158A2 |
A hydraulic pressure transformer (10) for the conversion of an input hydraulic power (12) to an output hydraulic power (14), and particularly suitable for use in a work machine (17) having a hydraulic work unit (15) requiring a hydraulic...
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WO/2002/040872A1 |
The present invention refers to power enlarging method in which power is enlarged when a fluid flows through a pipe or a passage, which has a larger area at inlet than at outlet. The pipe has a conical shape which has a cross section com...
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WO/2002/029254A2 |
The invention relates to a valve for controlling fluids provided with a valve element (3), which can be axially displaced inside a valve body (5), with a hydraulic chamber (12), which functions as a hydraulic transmission, with a filling...
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WO/2002/024441A1 |
The invention relates to a controller for a hydraulic press, comprising a pressing cylinder (1), a reservoir (2), a valve group (3), a pressure medium reservoir (7) and a hydraulic pump (6), connected together by means of a cylinder line...
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WO/2002/011970A1 |
The invention relates to a drive mechanism, comprising an electromotive drive unit (50) provided with an output element which can move in a straight line (54), a first piston cylinder unit (12) comprising a first active surface (18,19) a...
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WO/2001/094821A1 |
The invention relates to a valve for controlling liquids, comprising a piezoelectric actuator (2) disposed in an actuator bore (3). The valve is further provided with a hydraulic pressure intensifier (11) and a bellows (5). Said bellows ...
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WO/2001/071199A1 |
A hydraulic lock device capable of increasing the assured controllability and reliability thereof, reducing the size and increasing the output thereof, and reducing the size and pressure of a hydraulic pressure feeding source, comprising...
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