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WO/1998/022336A1 |
A floating spar structure for offshore hydrocarbon recovery operations is disclosed having a vertically oriented elongated floating hull (22) with a buoyant upper section (21) and a ballasted lower section (23) and an anchoring system (2...
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WO/1998/021489A1 |
The invention concerns a method for transporting a fluid, for instance gas under pressure in a pipe while reducing head loss to a minimum, comprising the following steps: injecting into the pipe a fraction of the liquid with a predetermi...
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WO/1998/020288A1 |
Fluidic devices, including constant-rotation double diodes (168) and constant-rotation double vortex tubes (168), are disclosed with which to construct pulse tube refrigerators (701) having diode loops (788), constant-rotation double dio...
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WO/1998/019018A1 |
A pile wrapper comprises a flexible sheet (2) of parallelogram form with stiff but not completely rigid members (3) along a pair of opposite edges proud of the side of the sheet to be exposed. This side also has flexible ribs or vanes (4...
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WO/1998/019050A1 |
The pressure pulsations caused by the flow patterns of flue gases entering a flue gas stack (28) from a horizontal duct (26) are eliminated or reduced by the installation of a partition plate (38) in the stack (28) opposite the inlet duc...
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WO/1998/017918A1 |
An apparatus for reducing distortion of air flow entering the inlet (16) of a fan (10). The device includes a perforated body member (32) that has a first end (34) that is attachable to the inlet end (16) of the fan (10) and a second end...
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WO/1998/005872A1 |
An insert (30) for placement within a generally tubular fluid conduit (10) having an inner conduit wall (35). The insert (30) functions to provide quasi-laminar flow to a fluid, and is constructed as a generally ring shaped flow-through ...
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WO/1998/000214A1 |
An expandable bladder toy water gun (1) is provided. It includes a main housing (3) having a barrel (9), a water ejection nozzle (11), a handle (5), a trigger (7), a water storage tank (33), a hand pump (45) as well as an inflatable blad...
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WO/1997/034086A1 |
The invention concerns a device (1) for guiding and dividing a fluid stream, in particular of steam, of a medium-pressure sub-turbine into a plurality of low-pressure sub-turbines (15a, 15b, 15c), with a flow duct (2) directed along a me...
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WO/1997/030292A1 |
A method of obtaining a free disperse system in liquid which produces a controlled hydrodynamic cavitation by regulation of constriction ratio, volumetric flow rate, and degree of cavitation parameters. Selection of the parameters with r...
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WO/1997/021931A1 |
According to the process of the invention, a surface for contact with a fluid which flows over the surface in a direction (A) has grooves (1) to prevent burbling at low local Reynolds numbers; said grooves (1) extend between a closed ent...
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WO/1997/020728A1 |
The friction resistance of the hull (2) of a ship (1) while navigating is reduced by jetting out minute air bubbles (8) of a predetermined diameter from positions of small static pressure near starting points of flow lines (F.L.) of wate...
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WO/1997/018990A1 |
An apparatus for controlling a boundary layer in a flow of an electrically conductive fluid moving relative to a surface in a free-stream direction comprises a plurality of selectively actuated control region tiles (406, 506) distributed...
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WO/1997/013075A1 |
A method for transporting a fluid through a channel which is defined by circumferential walls is disclosed. Here, it is desirable to avoid contact between the circumferential walls of the channel and the fluid. To avoid this contact, an ...
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WO/1997/004280A1 |
The present invention relates to the field of aerohydrodynamics and heat and mass transfer and especially relates to a method and an apparatus for controlling the boundary layer or the wall layer of a continuous medium consisting of gase...
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WO/1997/003009A1 |
The invention concerns a device for separating the gaseous laminar boundary layer (14) from at least one of the two sides (10, 12) of a material web (5), for example of paper, moving, preferably rapidly, in the conveying direction (6). T...
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WO/1996/041685A1 |
An expansion nozzle (10) for delivering liquid/gas mixtures comprises discontinuities (17) in the expansion section (14) toward the nozzle outlet (15). Those discontinuities (17) in the expansion section (14) function to ameliorate liqui...
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WO/1996/038311A1 |
The surface of a workpiece is cleaned by generating a steady-state one atmosphere glow discharge plasma above the surface of the workpiece. The use of one atmosphere, uniform glow discharge plasmas generated by a low frequency RF ion tra...
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WO/1996/034177A1 |
A method for inhibiting the plugging of a conduit by gas hydrates comprises adding to a mixture of water and hydrocarbons flowing through the conduit an amount of a hydrate formation inhibitor component of formula (a), wherein two of R1-...
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WO/1996/023981A1 |
A flow-guiding body is designed as a pointed, substantially conical moulded shell (1). The projection of its base surface is formed by a straight line (3a) and by a curve (3b) that interconnects the ends of the straight line. The curve (...
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WO/1996/019674A1 |
The invention concerns a device (1) for limiting the volumetric flow in a system through which a pressurized fluid can flow, the system comprising a flow duct (2). The device (1) has a main axis (3a) and a swirl-generating component (4) ...
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WO/1996/017986A1 |
An air laying forming station (ALFS) forms a nonwoven substrate from a first material and a second material having at least one physical characteristic substantially different from the first material. The ALFS includes a forming chamber ...
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WO/1996/010616A1 |
Use of a mixture of at least one alkanolamide of general formula (I), wherein R is a hydrocarbon group having 7-23 carbon atoms, preferably 11-23 carbon atoms, A is an alkyleneoxy group having 2-4 carbon atoms and n is 2-12, preferably 2...
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WO/1996/008658A1 |
In order to break whirls at a surface submerged by a tangential turbulent flow (9), a wall (11) extends parallel to the surface, at a certain distance (12) therefrom, and is provided with periodically arranged structural elements. The di...
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WO/1996/007030A1 |
A fluid flow device for redirecting and enhancing fluid flow has a plurality of parallel vanes or baffles (1) arranged to form parallel inlets between each vane or baffle. Each vane or baffle has an upstream and a downstream planar porti...
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WO/1995/034760A1 |
Static assembly for increasing fluid speed consisting of a series of preferably concave deflectors, having a Cx higher than one, shown in figure, arranged in a ring, for supplying a turbine (T) for example, or in a flat configuration for...
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WO/1995/027101A1 |
A method is provided to suppress vortex induced vibrations of a portion of a subsea tubular that is subject to vortex induced vibrations, the method comprising the steps of: providing a plurality of shrouds wherein each shroud is capable...
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WO/1995/025897A1 |
An improved laminar flow elbow system and method (10B) wherein the elbow system comprises a straight pre-pipe section (22) to define the flow path of a fluid; the pipe section included directly prior to the inlet of a curved pipe section...
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WO/1995/019290A1 |
An aerodynamic low drag structure (12) has a skin (18, 19, 20) which in movement of the structure (12) relative to a surrounding gaseous fluid medium produces at a flow control region of the skin (18) laminar flow in a boundary layer adj...
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WO/1995/019504A1 |
A fluid flow conditioning plate (10) for removing swirl, etc. from an enclosed water stream especially for a fire fighting nozzle. The plate has circular holes lying on concentric circles (11, 12, 13). Two cross-sectional shapes for the ...
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WO/1995/018711A1 |
An adjustable throttle (6, 7, 8) is disclosed with which the mass flow within a rectangular flow channel (3) or a flat flow channel with rounded marginal areas may be influenced. Because of its special design, the throttle has no parting...
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WO/1995/018923A1 |
A stationary material mixing apparatus in the shape of a cylindrical conduit (31) being open at both ends. The conduit (31) houses a plurality of mixing elements (33, 34, 35, 36) which are characterized as having no edges perpendicular t...
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WO/1995/018358A1 |
The aim of the invention is to design a vortex-type flowmeter in which the range over the Strouhal number is constant is extended towards low Reynolds numbers and which gives a low measurement scatter and the capability to determine the ...
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WO/1995/018419A1 |
A method of restricted space formation for working media motion is described that can be used to design flow channels for flow of different working media in both simple as well as complex flow channel configurations. In one embodiment, a...
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WO/1995/012792A1 |
For use with a heat exchange system having a compressor (CO'), condenser (CX'), evaporator (EX'), expansion device (EV') and circulating refrigerant, an efficiency enhancing apparatus. Comprising the apparatus is a liquid refrigerant con...
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WO/1995/012160A2 |
The working media, e.g., fluid or gaseous will be motioned in a restricted space, e.g., in a piping by adding velocity to the same. While prior to the working media motion the wavelength of the motioned working media dynamic processes wi...
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WO/1995/011388A1 |
The surface (12) of a body (10) immersed in a fluid flow has projections (14) on the base surface. In order to design a more flow-favourable surface (12) of a body (10) immersed in a fluid flow and having projections (14) on the base sur...
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WO/1995/011387A1 |
The invention concerns a device designed to divide or change the direction of a fluid flowing under pressure in a pipe, the device having a built-in element whose height can be adjusted and a rotary-flow chamber which tapers from the tan...
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WO/1995/008473A1 |
A duct cover (12) for use with a duct (4) within a vehicle, the duct cover (12) operative for directing a fluid flow. The duct cover being further operative for minimizing the entrance of foreign object debris into the duct (4). The duct...
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WO/1995/008717A1 |
The invention relates to a device for limiting the outflow and the simultaneous intermediate storage of waste water and the separation of depositable and floating substances from waste water in which there is a swirl chamber (2) connecte...
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WO/1995/008064A1 |
A flow conditioner for insertion into a pipe conveying a fluid flow. The conditioner incorporates an apertured plate which is arranged perpendicular to the flow through the pipe and defines apertures located so as to distribute the flow ...
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WO/1995/008065A1 |
A wide range laminar flow element for use in differential pressure and thermal mass flowmeters is disclosed. The flow element comprises multiple rectangular channels (1, 2, 3) in a single rectangular plate (11). The flow element contains...
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WO/1995/006207A1 |
An apparatus and a method for measuring a fluid flow in a conduit (10) are obtained by insertion within the conduit, upstream of a fluid measuring device, of a fluid straightening and displacement device to stabilize, homogenize and cond...
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WO/1995/004882A1 |
A fuel injector for improving the atomisation quality of fuel flowing into an internal combustion engine, includes a body (220, 240) having first and second turbulence cavities defined therein. First and second supply orifices (244, 254,...
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WO/1995/004881A1 |
A nozzle for improving the atomisation quality of fuel flowing from a fuel injector and toward the combustion chamber of an internal combustion engine includes a supply plate (140) having a supply orifice (144) through which the fuel flo...
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WO/1995/000391A1 |
The boundary layer of a fluid travelling in a mean-flow direction relative to a surface of a wall of a body is controlled by generating in the fluid a magnetic field B having flux lines along the surface of the wall and an electric curre...
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WO/1994/026411A1 |
To enhance the catalytic activity of plate-type catalytic converters the invention provides that a plate-type catalytic converter comprising multiple plates (2, 4) coated with a catalytically active substance and arranged in a unit casin...
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WO1994022274A1 |
The surface of an acoustic reflector faces the source, and has a plurality (N) of wells, where N is an odd prime number. Each well has a depth Dn=(n<2> rem N)* unit depth (0<=n<=N-1), governed by a Quadratic Residue Sequence. Acoustic en...
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WO/1994/018506A1 |
The invention pertains to a ventilation device wherein the air-moving unit (20) delivers at least a portion of the air in ambiant air mode, pulsed at very low frequency using at least one chamber (6) of changeable volume which is connect...
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WO/1994/017000A1 |
A fluid treatment device, especially for reducing or removing the effects of hard water, has a fluid inlet, a fluid outlet, and a cavity extending between the inlet and the outlet. A dielectric channel separator (preferably of plastics m...
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