Abstract: The invention is directed to a flow controlling device for a discharge system, such as a drainage system, having a first vortex chamber with an inlet and an outlet and a second bigger vortex chamber with a peripheral inlet and a central outlet axial in relation to a vortex in the second chamber. The second vortex chamber is connected at its inlet to the outlet of the first vortex chamber. The first vortex chamber is symmetrical with respect to a median plane perpendicular to a vortex axis (A), the direction of both the inlet and the outlet of this chamber being parallel with the median plane. The first vortex chamber is asymmetric with respect to a plane parallel with the inlet direction and perpendicular to the median plane. The vortex axis (A) of the first vortex chamber being perpendicular to a tangent of the second vortex chamber at the peripheral inlet and the ratio between the diameters of the first vortex chamber and the second vortex chamber is less than 0.43:1.

Abstract: An electro-fluid converter for controlling a fluid actuating an adjusting element, such as a main control slider of a servo valve, comprises at least one displaceable throttle arranged in a fluid-rich circuit. The throttle has at least one throttle element with a central inlet passage and a plurality of flow-mechanical identical base elements arranged around the central inlet passage in a star-like manner. Each of the base elements includes a bipolar wall stream element connected with the inlet passage and a whirling chamber element connected with the wall stream element, each of the wall stream elements being thermoelectrically controllable.

Abstract: A magnetic fluid conditioner for abating the adherence of precipitates in conduits transmitting a variety of liquids and/or gases which contain unwanted compounds capable of adhering to the inner walls of the fluid transmitting conduits, the magnetic fluid conditioner having means for directing the outwardly radiating magnetic flux toward the fluid conducting conduits to thereby increase the magnetic flux acting on the liquid and/or gas flowing in the conduits.

Abstract: A vortex amplifier having a vortex chamber is included in a fluid flow line. A sensor in the fluid flow line upstream of the vortex chamber and operable in response to changes in the fluid flow controls a valve in a further flow line for introducing a control fluid into the vortex chamber. The arrangement results in an automatic control in the fluid flow line.

Abstract: In apparatus for mixing and then separating different flow streams, such as solvent extraction apparatus, a cascade of contactors and jet pumps are arranged in counter-current flow mode. The same one flow stream is applied to the drive port of each jet pump in the cascade and the other flow stream is applied to the suction port of each jet pump in the cascade. The jet pumps in the cascade increase in size from a high pressure to a low pressure end of the cascade so that the suction pressure required at successive jet pumps is reduced.

Abstract: A fluid treatment apparatus and method for preventing or removing the formation of paraffin, scale, salt encrustation, emulsion, and the like on the interior surface of a conduit carrying a fluid. The fluid treatment apparatus comprises a turbulent flow generator, a plurality of support cylinders inside the apparatus, symmetrically opposed lower and upper flow distribution holes in the support cylinders, a plurality of permanent magnets within the support cylinders oriented with adjacent magnets having the opposite polarity, magnetic field intensification disks disposed between each magnet, and two magnetic field closure rings engaged with the support cylinders for securing the position of the cylinders and magnets and for closing and concentrating the magnetic fields at both extremities of the plurality of magnets.

Abstract: A fluidic pulsing device is disclosed which comprises at least one fluid lifier and several vortex valve restrictors. One or more amplifiers direct fluid flow to the several vortex valves, which are arranged in parallel fashion. Such an arrangement allows for optimization of design geometries, and therefore, optimization of performance, despite the fact that the physical dimensions of the apparatus may be severely restricted.

Abstract: A shock absorber has a piston which comprises upper and lower members. The upper and lower members are fixedly assembled to define therein the vortex chamber. The piston has vertically-extending channels on the periphery thereof to define the vertical section of the vortex passages together with the inner periphery of the cylinder tube.

Abstract: A fluidic thruster control system and method for guided missiles and the like, which utilizes a fluidic jet interaction device for controlling a downstream fluidic vortex amplifier to modulate exhaust flow through thrust nozzles.

Abstract: For achieving a shut-off function, a mainstream communicates with a control stream into which an outlet for the mainstream opens laterally. By reciprocating the control stream back and forth across the outlet, for example by alternate pressurisation of reservoirs to which the control stream is connected at its ends, access of the mainstream to the outlet is inhibited. When the reciprocation is discontinued full flow of the mainstream to or through the outlet can take place.

Abstract: The present apparatus is constructed to convert or reconvert spin flow energy into pressure energy. For this purpose a conduit forms a chamber intermediate the ends of the conduit. The chamber and a flow control member operatively supported in the chamber are of rotational symmetry and so shaped that predetermined flow passage configurations are accomplished which facilitate the conversion of the spin flow into an axial flow.

Abstract: A fluidic oscillator includes a chamber having a common inflow and outflow opening into which a jet is issued in a generally radial direction. After impinging upon the far chamber wall the jet is redirected to form a vortex on each side of the incoming jet. The vortices alternate in strength and position to direct outflow through the common opening along one side and then the other of the inflowing jet. A spray-forming output chamber is arranged to receive the pulsating outflows from the aforementioned or other fluid oscillator and establish an output vortex which is thereby alternately spun in opposite directions. An outlet opening from the output chamber issues fluid in a sweeping spray pattern determined by the vectorial sum of a first vector, tangential to the output vortex and a function of the spin velocity, and a second vector, directed radially from the vortex and determined by the static pressure in the chamber.

Abstract: This invention relates to a fluid-distribution apparatus in which one main fluid inlet flow is divided substantially equally between a number of outlets for example as the feeding of a plurality of burners on a gas turbine engine from a single fuel supply. At low total flow rates the difference in height of the various outlets can adversely effect the equality of distribution of liquid between the outlets and it is known to provide a restrictor in series with each outlet to improve the flow division between the outlets. However, where there is a large range of flow rates, the simple restrictors which are effective at low flow rates will cause a very substantial pressure loss at high flow rates. Further a simple restrictor essentially involves a passage of small cross-section which can become blocked by solid particles within the liquid.