Abstract: A fluid injection valve includes a valve seat having a conical concave surface and a valve seat surface, a needle having an edge surface and an annular contact surface whose diameter is Ds, an orifice plate having a perforated surface disposed in a downstream portion at a distance h from the edge surface of the needle and at a distance H from valve seat surface. Thus, a fluid chamber is defined by the perforated surface of the orifice plate, the edge surface of the needle and the conical concave surface of the valve seat. The perforated surface has a plurality of first orifices having a diameter d on a first circle whose diameter is DH. The fluid chamber is formed to have the following relationships among the diameters Ds, DH, d and the distances h, H: 1.5<Ds/DH<6, h<1.5d, and H<4d.

Abstract: A fuel injection valve has a deflection surface which has at least one depression, with the aid of which precisely aligned single, twin or multiple fuel jets can be generated, it being possible to achieve different fuel jet shapes by means of the configuration of the at least one depression. The fuel injection valve is intended, in particular, for mixture-compressing, applied-ignition internal combustion engines.

Abstract: Induction charging apparatus for HVLP spray guns and air-assisted airless spray guns includes an air cap having a central orifice for receiving a spray gun nozzle. The cap includes one or more charging electrodes adjacent the orifice and carrying a voltage sufficiently large to induce on the spray droplets charges of a polarity opposite to that on the electrodes. A rotatable electrical connector enables the cap to rotate 360.degree. while maintaining electrical connections between the electrodes and a power supply. The spray gun nozzle is an airless nozzle receiving liquid at a pressure of about 1,000 psi and having a spray tip from which liquid is sprayed along a flow path coaxial with the electrodes. Air at less than about 10 psi is directed along the flow path to assist in the atomization of the liquid from the airless nozzle.

Abstract: A gardening-used variational sprinkling head with fully discharging openings, composed of a variational water-discharging cover and a base member associated therewith. The sprinkling head is associated with a sprinkling gun. The sprinkling gun has an inner water outlet. The water-discharging cover is formed with radial ribs inward projecting from inner periphery thereof to define several fully discharging openings. A circular mesh plate is placed within the radial ribs. Six different variational sprinkling holes and two close holes are integrally annularly arranged on a central portion of the mesh plate. The six variational sprinkling holes respectively have six rearward extending hollow posts which respectively abut against six water inlets annularly arranged on the base member. The base member is connected with the mesh plate by ultrasonic fusion and spaced from the radial ribs by a space so that water can pass through the fully discharging openings.

Abstract: Induction charging apparatus for HVLP spray guns includes an air cap having a central fluid exit orifice for receiving the spray gun nozzle. The cap includes one or more charging electrodes surrounding the orifice and carrying a voltage sufficiently large to induce on the spray droplets charges of a polarity opposite to that on the electrodes. The cap includes a rotatable electrical connector to enable the cap to rotate 360.degree., while maintaining electrical connections between the electrodes and a power supply.

Abstract: A fire protection nozzle of this invention has a base defining an orifice and an inlet section defining a conduit for flow of fire-retardant fluid, leading to an upstream end of the orifice. A diffuser is supported by arms extending from the base in a position downstream of the orifice where fire-retardant fluid flowing from the inlet section emerges from the orifice in a coherent stream which impinges on the diffuser to be deflected in a spray pattern. The inlet section, in the direction of the fire-retardant fluid flow, has a cross-sectional shape of an inwardly convex curvilinear arc with a length equal to or greater than the diameter of the orifice. In a preferred embodiment, the diffuser defines two or more slots, each having a cross-sectional open area equal to at least eight percent of the total cross-sectional area of the diffuser measured in a plane transverse to the direction of fire-retardant fluid flow from the orifice.

Abstract: An adjustable telescoping downspout which can be laterally or vertically adjusted to a preferred position, extended longitudinally or retracted upwardly to an inoperative position. The two-piece trough is attachable to the downspout in a turret-like arrangement and requires no tools or hardware. The trough further includes a flow diverter at the distal end thereof for diverging and deflecting the water flow in a fan-shape to reduce the likelihood of soil erosion. The flow diverter can either be integrally formed with the trough, or provided as a separate member which can be selectively attached to the distal end of a trough. The diverter member includes a plurality of diamond-shaped protrusions for directing water flow over the side edges of the diverter member and which has a tongue-shape.

Abstract: The present invention consists of a new distribution device for use with conventional seeding meters. The system consists of a seed meter for dispensing a predetermined amount of seed and the distributor of this invention disposed below the dispenser. The invention is of a plate having an intricate geometrical configuration positioned below the volume or weight seed distributor to insure that the seeds are contained for controlled fall toward the ground and a portion shaped to provide even distribution of the seed whether or not the seeds are distributed by the center or either side of the present seed distribution system.

Abstract: A spray nozzle for spreading soluble and non-soluble substances contained within a canister. An inputted fluid flow is divided into a first partial flow to create a slurry within the canister, and a second partial flow which enters a mixing chamber to, in turn, create a venturi effect drawing into the mixing chamber portions of the slurry. An outlet channel deflector reflects the second partial fluid flow against the bottom surface of a flared nose at an exhaust end of the spray nozzle. A combination of two removable discs provides for conversion between use with soluble and non-soluble particles including grass seed, fertilizer, or the like.

Abstract: A spray apparatus for coating the front of a vehicle with a liquid to prevent the adherence of insects thereto includes a reservoir for a predetermined liquid material which reservoir is mounted to the vehicle. A pump is coupled to the reservoir for pumping the liquid from the reservoir and a fan is attached to the vehicle grill on the front of the vehicle and has a dispensing tube connected from the pump to the fan for dispensing the material from the reservoir directly into the fan blade for spraying liquid over the front of the vehicle. A second embodiment connects the pump to a plurality of dispensing nozzles, such as a hose attached across the front of a vehicle with a predetermined number of openings or nozzles therein for spraying the liquid over the front of the vehicle. The liquid may also be sprayed through the windshield washer nozzles for spraying liquid from the reservoir onto the windshield.

Abstract: Disclosed is an improved sprinkler arm rotatable in and out of a stream of water. In particular, the reaction surface of a sprinkler arm's spoon is improved to direct more water close to the sprinkler. The reaction surface in the preferred embodiment is provided at least one groove which directs some of the water downward from the rest of the water exiting the reaction surface. An alternate embodiment employs at least one pin in the reaction surface instead of or in combination with at least one groove. The improved spoon applies more water near the sprinkler ("enclosed water") without interfering with maximum distance of the water when the arm is rotated out of the stream ("canon shot").

Abstract: A fuel injector comprises a tip end containing a flat planar orifice member that is sandwiched between a seat member and a flow director member. The thin disc orifice member contains a pair of metering orifices that receive fuel that has been allowed to pass through the seat member by virtue of the unseating of the injector needle. The fuel is emitted from the metering orifices as two parallel streams that are parallel to the injector centerline. The flow director member contains a pair of holes having wall portions arranged to cause the flow streams to be emitted from the injector tip as two streams that diverge from the injector centerline without any additional influence on the metering.

Abstract: An end deflector for an abrasive water jet slot cutter is provided. The end deflector includes two wear resistant plates which direct portions of the water jet upwardly and downwardly. Preferably, the abrasive water jet slot cutter includes a source of high pressure water and a high pressure water outlet from which a stream of water is expelled. A venturi device is provided adjacent the water outlet for creating a vacuum. A feed device feeds an abrasive particular material to the venturi device so that the abrasive material is entrained in the stream of water. Thereafter, the stream of water is collimated in a tube which produces a cylindrical water jet which is then deflected before it impinges on the rock to mine the rock. The abrasive material is preferably sand and the tube including the deflector is easily replaceable.

Abstract: A burner suitable for use in a ground flare has a fuel gas supply pipe shaped to have a low resistance to upward air flow. The fuel gas supply pipe has one or more outlets in its upper surface which direct fuel gas onto adjacent plates to cause spreading and mixing of the fuel gas with aspirated air. The plates have a top edge adapted to give flame retention. The central portion of the upper edge of the plate is inclined into a substantially horizontal position towards the fuel gas outlet and the outer portions of the plate are inclined in the direction away from the fuel gas outlet.

Abstract: An improved nozzle tip (30) which provides enhanced ignition and stabilization of pulverized fuel flames in furnaces operating at low load. The nozzle tip (30) comprises open-ended inner and outer shells (32,34) mounted to the fuel delivery pipe (12) and defining a flow passageway within the inner shell through which the pulverized fuel is directed into the furnace and an annular flow passageway (50) between the inner and outer shells through which additional air is directed into the furnace. A pair of diverging splitter plates (41,42) are disposed within the inner shell (32) so as to divide the flow passageway therethrough into two separate, diverging subpassages (52,54) so that the pulverized fuel stream discharging from the fuel delivery pipe is split into first and second streams (60,70) which pass from the nozzle tip (30) into the furnace in a diverging manner thereby establishing an ignition stabilizing pocket in the low pressure zone (80) created between the diverging fuel streams.

Abstract: A pneumatic distributing device which can be used for broadcasting particulate fertilizer, herbicide or the like includes a tank, a slot across the tank with a metering roller in the slot for metering the particulate material into a number of receptacles arranged along the slot. A first venturi at the bottom of the receptacle transports the material in the receptacle through a first portion of the duct to a junction provided by a second venturi and a second duct. The second duct extends outwardly along a boom with a number of such ducts arranged in a vertically stacked arrangement which is selfsupporting. The second ducts incline slightly downwardly and are straight from the feed end to an open mouth at the outer end. A deflector attached to the open mouth has a first and then a second surface for spreading and then deflecting the material from the open mouth to the ground with the spread taking place along the length of the boom.

Abstract: A improved windshield wiper cleaning system spray nozzle mounted on the wiper arm intermediate the ends of the wiper blade. The nozzle includes a first baffle surface disposed at an obtuse angle relative to a base surface and at an acute angle relative to a transverse frontal wall surface upstanding from the base surface. A fluid dispensing orifice extends through the transverse wall with its axis normal to the frontal wall surface. Secondary baffle surfaces are provided by means of a notched-out portion formed in the first baffle surface. The orifice directs a stream of fluid such that a primary spray of the fluid is dispersed to upper and intermediate bladed areas of the windshield and a secondary spray of fluid is dispersed normal to the lower bladed area of the windshield.

Abstract: A conically shaped probe or forward portion on an air nozzle having a rearwardly extending hollow externally threaded portion providing an air flow duct. A supply of pressured air in communication with said air flow duct and having circumferentially spaced apart air outlets permitting air to flow from said air flow duct to an air flow gap and along the conical exterior surface of the probe, the COANDA effect functioning on this flow of air along the probe. A rotatable internally threaded collar is threadedly mounted on said hollow externally threaded portion of the probe and extends forwardly over and spaced from the plurality of air outlets and directing the flow of air through said gap to the external surface of the conical portion of the probe. The dimensions of the air flow gap may be varied by turning the collar to move it toward the conical portion of the probe or away therefrom.

Abstract: A nozzle for spraying a medium under pressure has a selectable form of jet. A knife edge body is rotatably mounted in front of the outlet from the nozzle bore, and has a front knife edge which breaks the jet from the bore into a spray mist when that knife edge is rotated into the jet and a rear knife edge which spreads the jet to a fan-shape when it is rotated into the jet.

Abstract: A stream director is disclosed adapted for mounting on a rotary sprinkler head to redirect the water stream during a segment of the rotation of the sprinkler from its intended portion of the irrigation area to another portion. A plurality of closed adjacent smoothly curved channels are employed to confine and redirect the stream emanating from the nozzle prior to its break-up whereby the spray pattern from the sprinkler is substantially as if the sprinkler were rotating through only a portion of a circular area.

Abstract: This disclosure relates to a new apparatus and spray head for fluid dispersion for use in removing particulate matter from air. The spray head comprises a rigid spray plate bent to a predetermined configuration with two head side plates attached to said spray plate, and two spray side guide bars attached to said side plates. A pressurized fluid, such as water, is delivered at the bottom of the spray plate whereupon impact with the surfaces of the spray plate, side plates and guide bars causes the fluid to be dispersed in spray form. Through this spray is passed contaminated air containing undesirable particulate matter such as paint overspray, whereupon the air is scrubbed to remove substantially all of the particulate matter. Such a spray head apparatus would typically be located at the base of a scrubbing unit connect to a paint spray booth or the like, said scrubber containing baffles through which contaminated air is passed and cleaned prior to emitting the remaining particle-free air to the atmosphere.

Abstract: A rotary sprinkler head comprising a sprinkler body devoid of any operative dynamic seals for communicating a source of water under pressure with an outlet for directing water under pressure communicated therewith into an atmospheric condition in a primary stream having a generally vertically extending axis. A rotary distributor is provided which has surfaces for engaging the primary stream (1) to establish a reactionary force component acting on the distributor in a direction tangential to the rotational axis thereof so as to effect rotational movement thereof about its axis of rotation and (2) to direct the primary stream engaged thereby in the form of a pattern forming stream or streams including at least one stream moving away from the distributor in a direction having a substantial component extending outwardly from the generally vertical axis of the primary stream so as to define the radius of the circular spray pattern.