Abstract: A dispenser head for a fluid dispenser device, the head including a hollow body (30, 130, 230) that defines a fluid passage between an inlet orifice (32, 132, 232) and a spray orifice (31, 131, 231); vibration generator means (40, 140, 240) being arranged in said passage upstream from said spray orifice (31, 131, 231), said vibration generator means (40, 140, 240) being actuated while fluid is passing so as to spray said fluid finely through said spray orifice (31, 131, 231).

Abstract: Disclosed herein is a fuel injection valve for an internal combustion engine. The fuel injection valve includes a valve body (10), a nozzle (20), a valve plate (30), a main needle spindle (40), a main needle (50), a main needle spring (60), a spring plate (70), a pilot needle spring (80), a pilot needle spindle (90) and a pilot needle (100). In the present invention, both the main needle and the pilot needle are opened or only the pilot needle is opened by compressed high-pressure fuel oil or compressed air, thereby enabling main injection and pilot injection to be separately performed by the single fuel-injection valve. Furthermore, because opening of the main needle valve can be controlled by compressed air for ignition or control of an engine, only the pilot injection may be conducted even without using a separate compression apparatus or the like.

Abstract: A dispensing device for fluid substances, including a pushbutton in which a chamber is provided housing a piston, the piston being loaded by an elastic mechanism to urge a front projecting appendix thereof into a dispensing hole for the substance, to hence sealedly close the hole, the pushbutton presenting a seat enabling a hollow stem to be coupled therethrough through which the pressurized substance is fed to the device. In the chamber there is housed an at least partially cylindrical member in an interior of which the piston slides, in the member there being provided at least one passageway opening to the front of the piston and communicating with a bore of the stem when the device is positioned on the pump.

Abstract: A valve assembly for an injection valve includes a valve body including a cavity with a fluid inlet portion and a fluid outlet portion, a valve needle axially movable in the cavity, the valve needle preventing a fluid flow through the fluid outlet portion in a closing position and releasing the fluid flow through the fluid outlet portion in a further position, an upper retainer arranged in the cavity and fixed to the valve needle, and an electro-magnetic actuator unit configured to actuate the valve needle, the electro-magnetic actuator unit comprising an armature, arranged in the cavity and axially movable relative to the valve needle, the armature configured to be coupled to the upper retainer when the valve needle is actuated to leave the closing position, and a permanent magnet arranged in the cavity adjacent the position of the armature when the valve needle is in its closing position.

Abstract: Proposed are a medical spray head (300) for spraying one or more fluid substances with the use of a compressed gas, a spray device equipped therewith, and a method for using the same. In order to avoid too high a gas pressure, the spray head comprises a pressure relief valve (310) which guides the compressed gas out of the spray head if the gas pressure exceeds a threshold pressure. As a result, the risk of gas embolisms occurring during the use of such a spray head for medical purposes is reduced.

Abstract: A spreader assembly may include a hopper having a receptacle for holding salt, or the like, and at least one chamber formed between the receptacle and an outer surface of the hopper. The chamber may hold a liquid used to pre-wet the salt before it contacts a ground surface. The hopper may be an insert hopper formed as a one piece plastic component in a rotational molding operation.

Abstract: A pressurized vessel including a pressurized vessel cylinder and dispersal unit. The pressurized vessel cylinder includes a non-circular cylindrical body and at least one truss structure connecting the first side of the body to the second side of the body, wherein the truss structure includes one or more voids such that fluid communication is maintained throughout the interior of the cylinder.

Abstract: A fluidic oscillator having independent frequency and amplitude control includes a fluidic-oscillator main flow channel having a main flow inlet, a main flow outlet, and first and second control ports disposed at opposing sides thereof. A fluidic-oscillator controller has an inlet and outlet. A volume defined by the main flow channel is greater than the volume defined by the controller. A flow diverter coupled to the outlet of the controller defines a first fluid flow path from the controller's outlet to the first control port and defines a second fluid flow path from the controller's outlet to the second control port.

Abstract: A fluidic oscillator array includes a plurality of fluidic-oscillator main flow channels. Each main flow channel has an inlet and an outlet. Each main flow channel has first and second control ports disposed at opposing sides thereof, and has a first and a second feedback ports disposed at opposing sides thereof. The feedback ports are located downstream of the control ports with respect to a direction of a fluid flow through the main flow channel. The system also includes a first fluid accumulator in fluid communication with each first control port and each first feedback port, and a second fluid accumulator in fluid communication with each second control port and each second feedback port.

Abstract: The shower head contains a nozzle body and a handle. The nozzle body contains a connecting rod, a support disc, and a container. The container is rotated by water from the handle and its stored liquid soap, essence, or lotion is released by centrifugal force. Water mixed with soap or essence is then ejected from the nozzle head. When the connecting rod is twisted towards a direction, the container is prevented by the support disc from contacting with water and therefore pure water is ejected from the nozzle head. A special flow path is provided in the handle. As water flows through handle, the speed of the water increases and, due to the Venturi effect, outside air is sucked into the handle and mixed with the water, thereby producing a large number of tiny bubbles. The shower head therefore provides a significantly enhanced cleaning effect.

Abstract: A needle for use in a needle valve, such as the needle valve of a fuel injector, comprises a tip section (2), a first guide section (1a) and a second guide section (3). The tip section (2a) has a needle tip. The first guide section (1a) is remote from the needle tip. The second guide section comprises a tube, wherein the first guide section (1a) and the tip section (2a) are comprised in an integrated inner needle component (7) extending through the tube (3). A method of manufacturing such a needle is also described.

Abstract: A needle type fuel injector has a needle control chamber at a pressure subject to a control valve in a control valve chamber which in an opening phase is lifted from its seat to expose the control valve chamber, connecting passage, and needle control chamber to a low pressure drain and in a closing phase is urged against the seat to isolate the control valve chamber, connecting passage, and needle control chamber from the drain. The potential for cavitation at high fuel injection pressure is reduced by throttling the flow of fuel past the control valve seat when the control valve opens, thereby maintaining sufficient back pressure in the control valve chamber and upstream connecting passages.

Abstract: An application head includes a storage-side valve, a discharge-side valve and a plunger. The storage-side valve slides in a space in communication with an intermediate liquid passage between the storage-side valve and the discharge-side valve and changes the volume of liquid in the intermediate liquid passage. Each of the storage-side valve and the discharge-side valve has a column-shaped part, includes a through-hole penetrating between outer circumferential surfaces of the column-shaped part, and is rotatable at least within a predetermined angular range around a center axis of the column-shaped part. Each of the through-holes of the storage-side valve and the discharge-side valve communicates with liquid passages on both sides at a predetermined rotational position and does not communicate with the liquid passage on both sides at other rotational positions outside the angular range.

Abstract: A combined injector and fuel pump suitable for high pressure direct injection of heavy fuels into Diesel engines, in particular small light weight Diesel engines. The injector utilizes a piezoelectric actuator driving a piston assembly comprising an inlet reed check valve disposed thereon. The piston may house an injection needle valve component spring loaded against the piston on one end of the needle component and a valve seat on the other end of the needle component. Fuel enters an inlet port coupled to an inlet passage within the piston. Piezoelectric actuator contraction transfers fuel from the inlet passage through the reed valve to a pressurization chamber. Piezoelectric actuator expansion drives the piston to pressurize the fuel in the pressurization chamber, which forces open the needle valve and nozzle assembly, injecting a finely atomized mist of fuel into a cylinder. A poppet injection valve embodiment is described.

Abstract: A dual, variable volume hot melt adhesive dispensing nozzle or die assembly is provided with a pair of choke slots within a first fluid control plate. The provision of the choke slots within the first fluid control plate effectively restricts and retards the flow of the fluid through such choke slots whereby volumes of the fluids are effectively built up and stored upstream of the choke slots so as to effectively delay the reaction of pressure spikes upon the fluid flows under both positive and negative conditions. This buildup in pressure and volume is then dispensed over time so as to cause the fluid flow to smoothly transition between positive and negative spiked fluid flow conditions and normal fluid flow conditions. Accordingly, the pressure spikes do not adversely affect the resulting fluid flows whereby, for example, under conventional negative pressure spike conditions, gaps in the dispensed hot melt adhesive would otherwise occur.

Abstract: A new firefighting monitor has multiple pivoting conduit segments and a synchronization mechanism with engaging faces that automatically restrain pivoting of an intermediate conduit segment with respect to an upstream conduit segment when the downstream conduit segment is pivotable with respect to the intermediate conduit segment, and automatically restrain pivoting of the downstream conduit segment with respect to the intermediate conduit segment when the intermediate conduit segment is pivotable with respect to the upstream conduit segment. In a variation, an intermeshed gear train causes a downstream conduit segment to pivot proportionately with respect to an intermediate conduit segment as the intermediate conduit segment pivots with respect to the upstream conduit segment.

Abstract: An agricultural sprayer for metered application of a liquid includes a chassis, and a carrier tank fixedly mounted to the chassis. The carrier tank is configured for containing a carrier liquid therein. One or more active ingredient tanks are each configured for containing an active ingredient therein. A storage area associated with the chassis is configured for and dedicated to removable storage of each active ingredient tank.

Abstract: A motion activated water repellant sprinkler device for repelling animals that can be remotely controlled is provided. When the device is in on mode, the user can remotely adjust the sensitivity setting of the motion detector, set a time period for which the sprinkler will continually spray, and turn off the device so that the user can approach the device without being sprayed. The ability to set a particular time period for continuous sprinkler activity allows the motion activated water repellant sprinkler device to be used not only as an animal deterring device but also as a watering device for grass and other plants.

Abstract: A multi function outlet mechanism comprises the main body unit, the switch mechanism and the control mechanism. The main body unit comprises an inlet waterway, two outlet waterways and an outlet terminal, the outlet terminal is provided with a plurality of water division cavities, and the check valves are arranged in at least two water division cavities, and the first outlet waterway is communicated with a plurality of check valves, when the water pressure of the first outlet waterway is bigger than the control water pressure of the check valves, the check valves are opened, water flows into the water division cavities from the first outlet waterway. The switch mechanism and the control mechanism are mounted in the main body unit, the users can use the switch mechanism to control at least the first outlet waterway and the second outlet waterway communicating with the inlet waterway in a switching manner.

Abstract: A method of operating a drip irrigation system is provided and includes providing drip irrigation lines aside a diverter line with T-junctions interleaved between adjacent ones of the drip irrigation lines and each T-junction including a three-way line coupled to the diverter line, a check valve operably disposable between the three-way line and a downstream end of an upstream one of the drip irrigation lines to permit fluid flow in only a forward direction and a controllable valve operably disposable between the three-way line and an upstream end of a downstream one of the drip irrigation lines.