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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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WO/1994/016259A1 |
A flow control device (1) for insertion into a conduit to control the flow rate of fluid flow therethrough. The device (1) includes two opposed dished baffle plates (2) and (3) defining a chamber (4) therebetween. Each baffle plate has a...
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WO/1994/012139A1 |
The invention relates to a device for washing and/or disinfecting medical ware, especially bedpans, with a chamber to contain the ware and a water reservoir upstream of it; in order to achieve the greatest possible hygiene and ease of ha...
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WO/1994/010380A1 |
A method and a device for achieving uniform transverse distribution and spreading of a flowing medium, such as liquids, gases, foam or mixtures of different types of material. The device comprises a distribution housing (1) with a wide o...
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WO/1994/007740A1 |
The invention provides a method of reducing the fluid friction resistance of a hull and a fluid transport passage, and preventing a submerged part-carrying structure from being soiled and corroded. A method of forming an air film on a su...
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WO/1994/008146A1 |
There is provided a vortex-valve (40) which comprises a housing defining a vortex chamber (44), the housing having an inlet (46) through which liquid may enter the vortex chamber (44) in a manner to promote swirl within the vortex chambe...
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WO/1994/002744A1 |
A device which improves fluid flow across the surface of mast and boom of a sailcraft, by including in the surface of such mast and boom, a pattern of discrete surface depressions (e), resulting in the decrease of base drag and the incre...
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WO/1994/001684A1 |
Process for recovering and causing highly viscous petroleum products to flow by means of an aqueous dispersion of the petroleum product, in which the dispersant is selected from alkali metal or ammonium salts of organic sulfonates having...
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WO/1994/000203A1 |
A tennis racquet utilizes a surface modification to increase the swing speed thererof. The increase of swing speed of the racquet, as used in racquet sports such as tennis, squash, badminton or racquetball, is achieved by reducing the ba...
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WO/1994/000342A1 |
The boundary layer of a fluid travelling in a mean-flow direction relative to a surface (104) of a wall of a body is controlled by generating in a near-wall region of the flow a magnetic field B(Boolean not) having flux lines (103) paral...
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WO/1993/025819A1 |
An orifice installation for sealing a plate (50) within a fitting (12) is disclosed. The plate (50) has a seal (64) surrounding its outer circumference. The seal (64) has a large base area (64) of elastomeric material and an outer and in...
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WO/1993/020355A1 |
A streamlined surface has concavities (1) (convexities), the cross-section of the concavity (1) (convexity) has the form of a smoothly curved closed line described by a certain relationship, the depth of the concavities (1) (convexities)...
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WO/1993/013321A1 |
The cross-sectional area of a turbulent flow of a continuous medium is gradually decreased along the path of the flow. The turbulent flow of the continuous medium is directed along a spiral trajectory (O-O). A device for laminarization o...
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WO/1993/009353A1 |
A plurality of turbulent flows of a continuous medium is fed into an axially symmetric space (9) along a plurality of trajectories (A-A1-H-H1) each of which has the form of a spiral with gradually decreasing radius along the path of the ...
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WO/1992/008059A1 |
There is disclosed a vortex valve (1) comprising a housing defining a vortex chamber (3), the housing (2) having an inlet (6) through which liquid may enter the vortex chamber (3) in a manner to promote swirl within the vortex chamber (3...
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WO/1991/019180A1 |
Apparatus and a method or design and installation of a pre-rotator (26) shead of an elbow (24) are disclosed in order to eliminate or reduce elbow-induced turbulence in pipe flows. Experimental verification was conducted, and noise and p...
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WO/1991/013641A1 |
An in-line fluid flow controller (5) for use with a fluid administration set (1) for infusion of fluid into the body of a patient, the administration set comprising a reservoir of fluid connected to a supply line (2) having a discharge o...
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WO/1991/006812A1 |
An air conditioning flow control valve assembly comprises a control valve (2), which may comprise a deformable sleeve which may be twisted to effect flow reduction, and a ramp-shaped flow deflecting structure (4) downstream of the valve....
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WO/1991/002555A1 |
Standing vortices are formed in a liquid flowing with a reversing but mean flow through a conduit, divided into a series of chambers with narrow inlet and outlets by appropriate selection of the chamber aspect ratio, Reynolds number and ...
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WO/1991/001452A1 |
A flow conditioner comprising an apertured circular plate intended to be placed in a conduit in an orientation substantially perpendicular to the axis of the conduit. The apertures are circular and are arranged in a plurality of radially...
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WO/1990/015256A1 |
Several forms of non-rotating translation apparatus and processes are disclosed, which may for example be used for aerodynamic or hydrodynamic separation of micron and submicron size dispersed particles from fluid flowing along elongated...
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WO/1990/008455A2 |
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WO/1990/003538A1 |
A dynamic containment vessel defined by a stable fluid recirculation within a generally cylindrical containment region (10). The dynamic vessel is maintained by fluid momentum which establishes superposed line (21) and ring (20) vortices...
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WO/1989/011343A2 |
Drag reducing riblets, which may be grooves (7) or formations of other shape, are produced in various ways. A coating (3) of a thermo-plastic material is first applied to the surface (4) and the coating is then deformed by the applicatio...
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WO/1989/008787A1 |
The invention provides a flow control system (10) well suited for use in intravenous fluid delivery systems comprising a flow restrictor wafer (36), (122) having one or more flow limiting flow restrictor paths (40), (50) formed thereon. ...
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WO/1989/008750A1 |
A device for controlling the flow in a pipe system, such as a sewerage system, comprising a vortex chamber (40) with an inlet opening and an outlet opening (43), an inlet gate (10) arranged outside the inlet opening being displaceable mo...
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WO/1989/003964A1 |
The inventive device (10) comprises a channel defined by a bottom (12) and side walls (14) and having an inlet end (16) and an outlet end (18) for the flow of a refrigerant. Underneath the bottom (12), there is provided transversely betw...
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WO/1989/001590A1 |
A method and apparatus is provided for reducing yield stress in pipeline transportation of slurries containing about 20% to 60% by weight of water and solids of a particle size range from about 0 to 150 mum, at high concentration and in ...
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WO/1988/008104A1 |
A fluid mixing device has a chamber (6) with a fluid inlet (1) and an opposite fluid outlet (4). The device causes a flow of a first fluid wholly occupying the inlet to separate from the chamber wall (5) upstream of the outlet (4). The d...
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WO/1987/007048A1 |
A flow rate controller (10) comprises a braking chamber (12) having an essentially centrally arranged outlet aperture (22) and is adapted to receive, through a peripheral opening within said braking chamber (12), a liquid flow to be cont...
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WO/1987/006201A1 |
A fluidic oscillator (20) is relatively short in length (under about 2.5 W where ''W'' is the width of the power nozzle) and has a leaky splitter (22) located proximate the center of the outlet flare (21) so as to divide the outlet into ...
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WO/1987/002440A1 |
Process and devices for suppressing standing waves in pipelines subjected to gaseous media, whereby a wind wheel (3) is fixed in said pipelines.
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WO/1987/000079A1 |
Apparatus for mixing or otherwise agitating fluid material comprises an elongated vessel (1) to contain the material, means (6, 7, 9, 10) to impose oscillatory motion upon the material in a lengthwise direction, and a plurality of statio...
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WO/1986/007417A1 |
A device for the transformation of a fluid flow comprises a chamber with two sidewalls and a circular or spiral peripheral wall extending between the sidewalls. A flow channel opens in the chamber tangentially to the peripheral wall. An ...
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WO/1986/002578A1 |
In a fluid flow device, fluid flows from an outer conduit (17) to an inner coaxial conduit (16) through a communicating chamber (21) at one end of the conduits. In order to prevent turbulence in the fluid flow due to the change of axial ...
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WO/1985/004231A1 |
To reduce the wear of constriction members, there is arranged inside the tansport pipeline, in the axial direction of the transported medium (oil, natural gas, etc.), a needle (18) used as a stop element and which is surrounded by the tr...
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WO/1985/002008A1 |
A tight closing damper, preferably in the shape of a Venetian shutter with lids (5, 6). Arms (3, 4) carrying the lids (5, 6) are designed to permit opening of the damper by turning a shaft (1) at least close to 90o, which shaft is journa...
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WO/1983/004290A1 |
A direction-of-flow controller is provided for a diffuser of an air conditioner to control its diffused flow. This controller mainly consists of a curved bonded wall (3), a linear bonded wall (5) provided with a bias projection (4) upstr...
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WO/1982/004470A1 |
A device for attenuating noise of fluid in non-axisymmetric turbulent flow which comprises a conduit (34) and a plurality (12) of parallel aligned nested tubes in said conduit. The nested tubes are of varying cross-sectional size and hav...
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WO/1982/002750A1 |
A device for converting a stream of a slurry or liquid flowing down a tube into a flat stream having a uniform flow across its width and, if a slurry, a uniform particle size distribution across that width. The device comprises a vertica...
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WO/1980/000927A1 |
Liquid fan spray system for cyclically deflecting a liquid jet between extreme positions defined by a pair of end walls (31, 32) is assured of cold weather operation by expanding the liquid power jet. In the preferred embodiment, one bou...
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JP7481199B2 |
In one embodiment, a method for reducing drag includes forming a smooth surface (130) on a first portion (120) of a physical object (100). The method also includes forming periodic riblets (110) on a second portion (130) of the physical ...
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JP7465483B2 |
A raised structure for reducing frictional drag due to viscosity of a flow toward an object in a direction forming an acute angle with an end portion of the object. The raised structure includes a plurality of raised bodies provided on a...
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JP7453246B2 |
A coating film is provided on the surface of a car body of an automobile and includes a plurality of protruding portions extending from the front toward the rear along the car body.
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JP7453247B2 |
A coating film is provided on the surface of a car body of an automobile and includes a plurality of protruding portions extending along the car body in a direction intersecting the length direction of the car body.
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JP7442807B2 |
To provide a protrusion structure control device that can control a peripheral air flow only in an objective speed range while suppressing increase in frictional resistance against an air flow and noise in other speed ranges.A protrusion...
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JP7441618B2 |
To provide a technology capable of realizing a design for changing the injection direction of a jet locus while miniaturizing a device body.A discharge device includes a device body 28 with an injection flow passage formed, an induction ...
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JP2024508350A |
The present invention provides a lift generation system (101) for a wing (1), comprising at least one airfoil designed to establish a connection between the exterior of the wing and the interior (102) of the wing (1). The present inventi...
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JP2024023741A |
An object of the present invention is to provide a novel material flow amplifier. The material flow amplifiers disclosed herein utilize known adverse flow rates resulting from the flow of particular types of materials (e.g., fluids, slur...
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JP2024506941A |
The nanobubble generator comprises an elongate housing defining an internal cavity adapted to receive a liquid carrier, a liquid inlet, and a liquid outlet; a gas permeable member disposed at least partially within the internal cavity of...
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