Abstract: An electromagnetically actuated fuel injector is provided with a discharge region of improved construction. The injector discharge region includes a central flow axis and, sequentially in the downstream direction, a simple metering orifice symmetrical with the axis, and flow patterning structure including a diverging flow director for directing the flow of fuel issuing from the metering orifice radially outward relative to the axis to an annular region about the axis and a converging flow director for directing the fuel radially inward relative to the axis from a position radially outward thereof for direct "transparent" discharge thereafter from the injector. A discrete exit nozzle may be shaped to effect the requisite flow convergence, and the angle of that convergence affects the geometry of the final spray pattern. A swirl disc may be positioned intermediate the other two flow directors.

Abstract: A novel center vane is disclosed for use in a full or solid cone spray nozzle. The vane has a solid center and specific parameters are set forth, in relation to the nozzle size and orifice diameter, for the vane geometry so that a solid spray cone of uniform distribution is obtained. In particular, we have found that when the orifice diameter is less than half of the nozzle diameter, the vane recess depth is a critical dimension to obtain a uniform fluid particle distribution in the solid cone spray and specifically have found that if the orifice diameter is equal to or greater than one-half the pipe or nozzle diameter, the vane recess depth should be one-fourth (0.25) of the pipe diameter, but if the orifice diameter is less than half of the pipe or nozzle diameter, the vane recess depth in inches should be equal to the orifice diameter squared divided by the nozzle diameter.

Abstract: An electromagnetically actuated injector, for the injection of fluid in internal combustion engines in particular, comprises a casing, a core located within the casing, an actuating coil surrounding the core, a fluid inlet passage, a chamber between the core and a cover. The injector contains a ball which cooperates with a seat to close the injection passage formed in the cover, said ball being attracted by the actuating coil against an elastic system mounted in front of the core and which urges the ball against its seat. The injector includes a disk interposed between the core and the ball, the disk surface facing the ball being coated with a thin layer of nonmagnetic material, a seat with a circular working surface, a funnel-shaped nozzle for automatic fluid-flow regulation, and an injection tip provided with spiral inclines to create a cone-shaped spray at the outlet of the injection nozzle. Application is to fuel injection in the internal combustion engines of automotive vehicles.

Abstract: A swirl injection valve includes: a nozzle body including a hollow cylindrical body having a hole and a bottom portion on which a nozzle port and a valve seat are formed; a needle valve member, slidably inserted and reciprocally moved within the hole of the nozzle body, having a tip portion for seating on the valve seat and controlling the opening and closing of the nozzle port; a swirl chamber formed upstream of the nozzle port and defined between an inner wall of the nozzle body and an outer wall of the needle valve member; a fuel supply passage formed within the nozzle body and connected to a fuel supply source; and inclined passage comprising at least one short passage connected to the swirl chamber and the fuel supply passage and tangentially opened to the swirl chamber at a predetermined inclined angle. The fuel is tangentially supplied from the inclined passage to the swirl chamber without pressure loss.

Abstract: A triboelectric powder spraying gun is provided which can produce an increased deposition efficiency and an improved coated surface. The spraying gun comprises an earthed or high voltage-impressed conductive nozzle having, as a lining, a plastic material which possesses an electrification series remarkably different from that of a powdered paint, in which said powdered paint is transferred to said nozzle so that it is triboelectrically charged within said nozzle, and a turbulence generator arranged inside of said nozzle. The surface of said turbulence generator is coated with a plastic material possessing an electrification series remarkably different from that of said powdered paint.

Abstract: This invention relates to a snow-making nozzle used in the production of artificial snow and which is to be connected to a pressurized supply of water and a pressurized supply of air for the concurrent passage of air and water therethrough. The nozzle has an upstream conically convergent section and a downstream conically divergent section. At the common point of intersection of these two sections, which is normal to the nozzle axis, an annular throat is defined. A restrictor, being a body of revolution, is fixedly positioned in the divergent and convergent sections and includes a conically convergent downstream portion commencing proximate from the annular throat and within the divergent section of the nozzle. The design is conducive to uniform velocity profiles, uniform particle size of snow produced and reduced air-to-water ratios when operating at ambient temperatures approaching the freezing point of water than was previously obtainable in nozzles intended for two phase flow.

Abstract: An electromagnetically actuated fuel injection valve and its utilization in a dual plane, single point fuel injection system are disclosed. The single point injection system includes a throttle body having an air induction bore controlled by a throttle assembly for each plane of the internal combustion engine manifold. An integrally formed fuel injector jacket mounts an injector valve above the throttle blade and concentrically with each bore of the throttle body without a hard fuel connection to the valve. The injection valve includes a movable valve needle attached to the armature of an electromagnetic solenoid. The needle seats between an inlet orifice and a metering orifice of a valve housing which is inserted into the accumulation chamber defined by the inner wall of the injector jacket. A flexible or soft connection is maintained between the valve housing and injector jacket to seal the accumulator chamber and to provide for quickly mounting or removing the valve from the system.

Abstract: Hydroponic gardening apparatus mounted within its own shelter includes a lower reservoir containing a liquid nutrient, and a pump for flowing liquid nutrient from the lower reservoir to an upper reservoir. At least one feed conduit inclined downwardly away from the upper reservoir and connected in fluid communication with the interior of the upper reservoir guides under the force of gravity liquid nutrient from the upper reservoir to a container having growing media disposed in the interior thereof adapted to support and to nourish plants therein. The container is inclined downwardly toward the lower reservoir, and a return conduit is connected in fluid communication with the container for guiding liquid nutrient therefrom back to the lower container for recycling purposes. The hydroponic gardening apparatus is mounted within the interior of a shelter, and the container and conduits are mounted on support posts for the transparent roof of the shelter.

Abstract: The atomizing device of the present invention comprises a cylindrical swirl chamber provided with a nozzle, and a pipe running coaxially through the chamber and the nozzle to protrude into the zone of material atomization. The device is provided, according to the invention, with another chamber which is essentially an acoustic resonator, the outlet end of said pipe entering the interior of the second chamber which adjoins the nozzle. The second chamber is implemented as a quarter-wave acoustic resonator. The present invention can find most utility when applied in those industries where quality atomization and/or mixture-formation of various materials is involved, such as in the chemical engineering industry.

Abstract: An insert is shown for a solid cone type spray nozzle as well as a method of making the insert. The insert has a central planar web having a rounded lower edge portion and a pair of obliquely oppositely disposed vanes located perpendicular to the web. The vanes have distal portions extending past the plane of the web and have recesses located adjacent to the distal portions to produce the required turbulent and swirling fluid motion inside the spray nozzle. The inserts are produced from bar stock by forming first and second parallel oblique grooves to define a vane between the grooves, and removing a portion of bar stock material from the peripheral edge portion of the second groove adjacent to the vane. The bar stock is rotated 180.degree., third and fourth parallel oblique grooves are formed crossing the first and second grooves, and a similar portion of bar stock is removed from the peripheral edge portion of the fourth groove. A second vane is thus formed between the third and fourth grooves.

Abstract: An atomizing device for mixing or atomizing fluids without moving parts and comprising, in combination, a hollow tube which has a substantially cylindrical inner wall and a core member situated within the tube in substantial coaxial relationship with and spaced from the inner wall. The surface of the core member includes at least one non-intersecting helical channel which extends substantially continuously for the length of the channel. Also, channel-forming means is provided about the core member in close proximity with the surface thereof and with the inner wall of the tube, which comprises at least one layer of at least one non-intersecting helical winding. Each winding in any single layer is in the opposite direction to each winding in the next or adjacent layer and each winding in the layer nearest the core is in the opposite direction to the helical channel formed in the core member.

Abstract: An electromagnetic fuel injection valve in which a valve needle coupled to the armature has twisting channels for carrying fuel and for creating turbulence therein. The channels terminate in a pressure chamber whose volume is chosen to be equal to or smaller than the volume of fuel injected in a single stroke.

Abstract: The nozzle is provided with a bar which may be rotated to and fixed at various angular positions. The bar has a longitudinally extensive cut away portion, providing a fuel passage. Varying the angular position changes the turning velocity of the vortex-type jet issuing from the passage. The effect of varying the shape of the fuel passage is also described. The purpose of variation is to cause fuel to be properly retained on the saucer shaped top surface of the impact block until the piston strikes the surface, causing the fuel to atomize and be uniformly dispersed to enhance complete combustion of the fuel.

Abstract: A water discharge device for use with irrigation systems, comprising a tubular element formed with female threads at the inside surface thereof and a screw element formed with male threads at the outside surface threof, the height of said female threads being different from that of said male threads, whereby a helical passage is formed along the female and male threads, through which water is moderately discharged under reduction of pressure.

Abstract: As in-line mixer for fluids, comprising an elongated open-ended, hollow tube and stationarily positioned therein two or more elongated, helically twisted and interengaging strips which are tightly enclosed by the tube.