Abstract: With the use of a low cost microphone mounted at each nozzle, a sound signature of the nozzles may be captured and stored to be used as a continuous indicator of any changes in the flow rate of the nozzles. By measuring changes in sound at each nozzle, it is possible to determine the change in flow before a change in pressure manifests into a problem in the system. The change in sound will oftentimes be significant for plugged nozzles, or nozzles that have excessive wear and flow at too high of a rate. The invention has the advantage of being relatively low cost with ceramic microphones, for example, and with little or no moving parts required. A closed loop control system may be included to compensate for nozzle degradation.

Abstract: A fuel injector includes an injector body and a valve stack within the injector body that includes a valve seat plate. The valve seat plate includes a pressure control passage for controlling fuel injection, and a valve seat positioned fluidly between the pressure control passage and a low-pressure drain. The valve seat plate includes a pressure-limiting annular groove that extends circumferentially around the valve seat and axially inward from a side of the valve seat plate where the valve seat is located. The groove enables deformation in response to pressure differences across the valve seat plate in a manner that limits stress concentrations.

Abstract: An irrigation sprinkler is described. The irrigation sprinkler includes a first ring including a first edge defining a first plurality of semicircular recesses and a second ring including a second edge defining a second plurality of semicircular recesses. The first ring and the second ring are secured together to define a plurality of circular recesses. The first ring includes a fin proximate each circular recess. The irrigation sprinkler also includes an adjustment mechanism disposed within each of the circular recesses. Each adjustment mechanism includes an outer rotating member including an annular structure comprising at least one of an annular recess and an annular protrusion, and an internal chamber including inwardly disposed threads. Each adjustment mechanism also includes an inner cylindrical member including an outer surface. The outer surface defines outwardly disposed threads and a channel. The channel extends radially along only a portion of the inner cylindrical member.

Abstract: Systems and methods for providing a constant current controller for use in constant current welding applications are described. In one embodiment, a current controller controls the output current of the welding torch without directly measuring the output current of the welding torch. The current controller controls or sets a current in a primary winding of a transformer in an inverter of a welding power supply to control the output current of the welding torch.

Abstract: A supply port receives supply of washing liquid. An oscillation chamber oscillates the washing liquid supplied through the supply port. A jetting section jets the washing liquid oscillated in the oscillation chamber to the outside. The jetting section includes a passage connecting the oscillation chamber and the outside. The washing liquid enters the passage from the oscillation chamber through an entrance, passing through the passage, and emitted through an exit to the outside. A jet port is provided between the entrance and the exit, having a narrower width than those of the entrance and the exit. An outer guide connects the jet port and the exit. An inner guide connects the entrance and the jet port, and configured to conduct the liquid oscillated in the oscillation chamber to the outer guide.

Abstract: Water is emitted directly onto the soil from drip lines pulled from a mobile drip irrigation device. The forward ends of the drip tubes are anchored and retained to establish relatively fixed intervals of spacing between the forward ends of the adjacent drip tubes to guide the drip tubes across the soil and through growing plants. A pressure-regulated constant-volume flow of water is emitted from ports in the drip tubes.

Abstract: A water outlet mechanism, includes at least two diversion waterway sets connected to the water source and an outlet, each diversion waterway set has at least two diversion waterways and at least two water diversion passages; water from the at least two diversion waterways impact and converge and then enter the water diversion passages, the flowing direction of the at least two water diversion passages intersect, and water from the at least two water diversion passages impact and then spray out of the outlet. Water from at least two diversion waterways impacts and converges and then enters the water diversion passage, the water particles are refined and shaken; the direction of the at least two water diversion passages intersect, and water in the cavity of the inlet impact again to form wavy water type and then sprays out of the outlet.

Abstract: The present system provides an integrated fire suppression system that includes all components other than system piping to nozzles or emitters in a single integrated panel. The system allows the entire panel to be inspected and analyzed, and installed, repaired, or maintained in a single operation, dramatically reducing time spent on site and reducing the qualifying process as well. The assembly of the panel is off-site, typically under the inspection of any qualifying agencies. Once assembled, the system can remain qualified for rapid installation at any future time, allowing easy replacement of faulty panels or consumables.

Abstract: A low pressure water mist nozzle for active fire protection from water supplied with supply water pressures of 0.5 bar to 20 bars, characterized by having a separation wall (3) with multiple openings (4) of sizes 01 mm to 02, 5 mm in angles of 10° to 50° to the wall surfaces, which are followed by a cavity (8) having a centrally located outlet opening (6) in its end wall, which are located opposite the separation wall (3) containing multiple openings (4).

Abstract: The disclosure relates to a fuel injection valve that includes a valve needle, a closing spring applying a spring force to the valve needle, which spring force loads the valve needle in the direction of a closing position, and an actuator assembly. A coil of the actuator assembly produces a magnetic force on a magnet armature of the actuator assembly such that, as the magnet armature travels toward a pole piece of the actuator assembly, the magnet armature covers an idle stroke to a stop element of the valve needle and then carries the valve needle toward the pole piece. A spring constant of the closing spring and the magnetic force are matched such that the magnitude of the resultant force of the spring force and the magnetic force decreases with increasing distance of the valve needle from the closing position and remains the same with increasing the distance.

Abstract: A nebuliser cup for maintaining a safe level of liquid during nebulization, the cup comprising a liquid level sensor comprising: a first element sensing liquid at or below a position corresponding to a filled liquid level in the nebuliser cup; a second element electrically isolated from the first element and located at a position corresponding to a filled liquid level in the nebuliser cup; and wherein when the cup is not filled with a liquid to the filled liquid level, the first element, the liquid and the second element do not form an electrically coupled circuit; and when the cup is filled with a liquid to the filled to liquid level, the first element, the liquid and the second element together form an electrically coupled circuit.

Abstract: A deflectable touchdown wheel system for a sprayer boom of an agricultural sprayer is provided that includes a touchdown wheel that deflects transversely when contacting the ground at an angle, damping ground contact impact forces at the sprayer boom reducing reactionary forces such as external steering inputs at the sprayer vehicle.

Abstract: A high-volume foam spray gun assembly having a mixing section comprising a chamber bore, and a mixing chamber movingly disposed within the chamber bore. The mixing chamber further includes a first lateral orifice, a second lateral orifice, a central mixing bore, and a central mixing bore outlet. The spray gun assembly is operable to spray a foam product out of the spray tip at a rate of in the range of about 10 lbs/min to about 100 lbs/min. The first lateral orifice has a first lateral orifice diameter in the range of at least greater than 0.1 inches. The second lateral orifice has a second lateral orifice diameter in the range of at least greater than 0.1 inches.

Abstract: A system is provided for venting a container used to supply a liquid to a spray coating device. The system may include a container cover having a buffer chamber, a liquid conduit configured to extend into a liquid container, a first vent conduit that extends into the buffer chamber, and a second vent conduit that extends from the buffer chamber to the liquid container.

Abstract: The present invention relates to a welding torch including a mounting jig for mounting a wire-aiming guide which feeds a welding wire toward a molten pool of a work piece, wherein the mounting jig has a male screw that can be screwed into a female screw provided in a torch body, and is detachably mounted to the torch body; and a mounting jig. The present invention provides the welding torch with which a wire-aiming guide can be stably mounted and which can mount a highly versatile wire-aiming guide; and the mounting jig.

Abstract: A metal valve body having a fuel injection port includes a nozzle plate accommodation part accommodating a nozzle plate of synthetic resin and aligning a center of the nozzle plate with a central axis of the valve body. A front end surface abutting against the nozzle plate is accommodated in the nozzle plate accommodation part. A swage projection fixes the nozzle plate to the front end side on which the fuel injection port is formed. The nozzle plate is swage-fixed in the state in which a spring action part is elastically deformed on the front end side of the valve body by the swage projection, and a nozzle hole formation part is constantly pushed against the front end surface of the valve body by the elastic force of the spring action part.

Abstract: A manufacturing machine is a manufacturing machine capable of additive manufacturing. The manufacturing machine includes: an additive-manufacturing head configured to be movable in a machining area and to discharge material powder toward a workpiece and irradiate the workpiece with an energy beam; and a powder chute configured to be movable in the machining area and to receive material powder discharged from the additive-manufacturing head toward the workpiece and failing to attach to the workpiece. There is provided the manufacturing machine configured in the above-described manner to be capable of efficiently collecting material powder having failed to attach to the workpiece during additive manufacturing.

Abstract: A method and device for gas metal arc welding, wherein a current-carrying wire electrode is melted by an arc, and wherein gas metal arc welding is performed using a filler metal, which contains at least one constituent that releases deleterious emissions through evaporation, wherein a composition that does not contain this constituent is selected for the wire electrode, and a dead weld metal containing this constituent is fed to the arc and/or a molten bath without a current.

Abstract: A fluid dispersal node is disclosed that includes one or more fluid outlets, an electromechanical valve, one or more hardware processors, hardware memory, a hardware wireless communication module, an antenna, and a fluid-tight, substantially radio frequency (RF) transparent enclosure. The valve is disposed in the node, and controls fluid flow to the outlets. The processors, in turn, control the valve. The wireless module receives instructions for operating the valve and forwards those instructions to one or more of the processors and the memory. The processors, memory, wireless module and antenna are disposed within the RF-transparent housing. In some embodiments, the antenna is disposed on a riser associated with the node outside the enclosure. In other embodiments, the antenna is disposed in a fluid line connected to the node.

Abstract: A foamed water discharging device includes a water feeding hole, a water discharging hole, a water passage, a ventilation passage, and a foamed water generator. The water passage has a cylindrical inner circumferential surface extending from the water feeding hole to the water discharging hole. The ventilation passage takes in external air on the upstream side of the water passage. The foamed water generator causes water containing the external air to undergo a collision on the downstream side of the water passage so as to convert the water into foamed water. The foamed water generator includes flow dividing ribs along the inner circumferential surface of the water passage, which protrude radially toward the center of the water passage. On a top portion of each flow dividing rib, at least a pair of inclined surfaces are formed to divide, rightward and leftward, water inflowing from a water guiding passage through the water feeding hole.