Abstract: A crossover prevention valve for use in a multi-component fluid mixing and dispensing system includes a valve body defining at least two fluid passageways having respective one-way check valves at their outlet ends. A forward end of the valve body cooperates with an interior surface of a dispensing nozzle to define a mixing chamber for chemically reactive fluids prior to discharging the mixed fluids out of the dispensing nozzle. The crossover prevention valve does not permit reverse flow, thereby preventing clogs due to undesired intrusion of one reactant into the flow path of another reactant. Solidified reactants left in the mixing chamber are easily removed from the valve body, permitting the valve body to be reused even after sitting for extended periods.

Abstract: An atomizer for an electronic cigarette includes an atomizing assembly, an adjusting assembly, a bottom cover, and a collecting device. The collecting device and the atomizing assembly are arranged on the bottom cover. The adjusting assembly includes a substrate with an injecting hole and an adjusting member. Size of the injecting hole is adjustable by rotating the adjusting member. The present application also provides another embodiment, which includes an atomizing assembly with an atomizer head and an air inlet pipe, and an adjusting assembly with an air inlet in fluid communication with the outside. One end of the air inlet pipe is communicated with the bottom of the atomizer head, and the other end of the air inlet pipe is in fluid communication with the air inlet. The atomizers have an anti-leakage function. The present application also provides an aerosol generating device with the atomizer.

Abstract: A nozzle hole of a nozzle plate is coupled to a fuel injection port of a fuel injection device via a swirl chamber and first and second fuel guide channels opened into the swirl chamber. The swirl chamber is formed by combining first and second elliptical-shaped recessed portions. The first fuel guide channel opens at a side of a short axis of the first elliptical-shaped recessed portion and a side of the short axis that does not overlap with the second elliptical-shaped recessed portion, and the second fuel guide channel opens at a side of a short axis of the second elliptical-shaped recessed portion and a side of the short axis that does not overlap with the first elliptical-shaped recessed portion. The first and second fuel guide channels have depths deeper than those of the swirl chamber and extend inside of the swirl chamber while gradually reducing cross-sectional areas.

Abstract: An apparatus (10) comprises a water storage tank (14), a heater (16), a pump (38) and an outlet duct (70) to convey heated water to a plurality of lances (24) through hoses (22). The heater (16) is arranged to heat the water in at least two successive stages (66, 67), to an intermediate and then to a final temperature, at least the second stage (67) of the heater being activated in pulses, the frequency and/or duration of the pulses being adjustable to control the resultant temperature. Foaming agent is introduced (18, 40) into the water. Upstream of each hose (22) is a diversion valve (85) connecting to a water return circuit (54) leading back to the water storage tank (14); and the water return circuit (54) includes a heat exchanger (55, 56). The heater (16) may be liquid fuelled. The apparatus can be mobile, for example on a motor-vehicle (12), and it enables a number of people to control weeds separately, using separate lances (24), from the same apparatus (10).

Abstract: A high-volume low-pressure spray system includes a hose disposed between a compressor and a spray gun. The hose acts as an accumulator when the spray gun is deactivated. A check valve is disposed in a fitting connecting the hose to the compressor. The check valve includes a spring that applies a nonlinear force to a downstream end of a valve member, such that the valve member tips open in response to the pressure differential, providing a variable flowpath opening through the check valve.

Abstract: A nozzle hole of a nozzle plate is connected to a fuel injection nozzle of a fuel injection unit through a swirl chamber and first and second fuel guide grooves opened to the swirl chamber. The swirl chamber is an oval recess provided with the nozzle orifice in its center. A first fuel guide groove is opened to one end side of a major axis of the oval recess, and a second fuel guide groove is opened to the other end side of the major axis of the oval recess. The first and second fuel guide grooves are formed such that the same amount of fuel flows to the swirl chamber. The same amount of fuel flowing from the first and second fuel guide grooves to the swirl chamber is guided to the nozzle orifice at the same time while revolving inside the swirl chamber in the same direction.

Abstract: A net water outlet device includes a main body and an outlet cover plate. The outlet cover plate is disposed at one end of the main body, the other end of the main body is an inlet end. The outlet cover plate is disposed with a first outlet hole group and a second outlet hole group arranged concentrically; therein, the outlet direction of the first outlet holes are configured so that: the axis of the outlet cover plate projects to the circumference of each first outlet hole, making the axis of the outlet cover plate and the tangent line of the circumference of each first outlet hole jointly define a first plane, the outlet direction of the first outlet holes are in the first plane, forming a first intersection angle with the projection of the axis of the outlet cover plate.

Abstract: An exemplary fire suppression sprinkler includes a housing (22) that establishes a flow path for discharging fire suppression fluid. A water seat (28) is configured to block the flow path. A polymer seal (30) is supported within the housing (22) and engages the water seat (28) for sealing an interface between the flow path and the water seat (28). A spring member (40) biases the polymer seal (30) into engagement with the water seat (28).

Abstract: A nozzle access device is configured to be installed in a structural element and to accept connection by a fire hose nozzle to introduce firefighting fluid into an enclosed space. The device has a housing configured to be inserted in a hole formed in the structural element. The housing has a cylindrical body and a first face with an opening surrounded by an inwardly extending cylindrical socket. The housing has a second face, with an opening, which is attached to the cylindrical body. A movable nozzle connector in the housing has a connection portion configured to receive an inserted fire hose nozzle in a locking connection and a cylindrical nozzle stop portion extending from the connection portion. The nozzle stop portion is movably coupled within an interior of the socket of the first face.

Abstract: The invention relates to an injection nozzle (1) for fuels, comprising a nozzle body (2), in which a pressure chamber (4) that can be filled with fuel under high pressure is formed, in which pressure chamber a piston-shaped nozzle needle (3) is arranged in such a way that the nozzle needle can be moved longitudinally. A sealing surface (6) is formed at one end of the nozzle needle (3) and an end face (9) is formed at the opposite end, wherein the sealing surface (6) interacts with a nozzle seat (5) in order to open and close at least one injection opening (8). A control chamber (10) that can be filled with fuel under changing pressure is bounded by the end face (9) of the nozzle needle (3) such that a force can be applied to the end face (9) in the direction of the nozzle seat (5) by means of the hydraulic pressure. The nozzle needle (3) has an elastic longitudinal segment (25), which has a longitudinal stiffness of less than 40,000 N/mm.

Abstract: A dosing dispenser system and a dosing dispenser include a rotatable control configured to allow a user to select a desired mixing ratio for a product contained in a container attached to the dosing dispenser with a transport medium, such as water, flowing through the dosing dispenser.

Abstract: A paint spraying machine includes an apparatus for containing and removing the leakage of paint drops from a rotating joint, without the risk of damaging the article being sprayed, and thus without the need for downtime to replace sealing elements. The rotating joint includes a hollow shaft for distributing paint, a drum including a plurality of flanges that define separate chambers for different paints, a plurality of seals for separating the different paints in the different chambers which together form a high-pressure circuit, a low-pressure circuit to refrigerate the seals, improve their sealing and possibly intercept leaking paint, and a plurality of centering rings provide for correct assembly of the seals and the correct alignment of different flanges. The rings are hollow, and allow for the passage of the refrigerating/cleaning liquid under low pressure.

Abstract: A drip irrigation emitter may be provided with a coupler for bonding to an inner surface of a conduit. The emitter may include for example a button flow restrictor. The coupler may optionally provide an outlet zone on the conduit surface that is large enough for automated perforation. Bonding the emitter to the surface of the conduit may have a minimal effect on the dimensions and/or properties of the conduit. A button drip irrigation emitter may optionally include a two part labyrinth. The labyrinth may for example be confined between a cylindrical surface and a cover and/or wind between intermeshing baffles on the cover and/or the surface.

Abstract: Embodiments of a sprayer system having spray nozzles; each nozzle includes a thermistor or resistor that provides an electronic current or voltage value correlated with a flow rate or a local temperature. A low flow rate indicates of a fluid flow clog or plug within the nozzle or conduit. The flow rate or temperature results among the different nozzles are compared to detect which nozzles are partially or entirely clogged or otherwise anomalous. In various embodiments, the thermistor electronics are integrated in each individual nozzle. In some embodiments, upon detection of a potential clog, the electronics create an alert and respond to the clogged condition.

Abstract: An improved mist generating apparatus is provided, the apparatus having a longitudinal axis (L), and first and second opposing nozzle surfaces (100,102) which define a nozzle between them. A first process fluid passage (28) has an inlet connectable to a supply of process fluid, and a process fluid outlet (110) on one or the first and second nozzle surfaces (100,102) such that the process fluid outlet (110) opens into the nozzle. The nozzle has a nozzle inlet (104) connectable to a supply of driving fluid, a nozzle outlet (108), and a throat portion (106) intermediate the nozzle inlet (104) and nozzle outlet (108). The nozzle throat (106) has a cross sectional area which is less than that of both the nozzle inlet (104) and the nozzle outlet (108). The nozzle extends radially away from the longitudinal axis (L) such that the nozzle defines a rotational angle about the longitudinal axis (L).

Abstract: Dispensers for fragrance and chemical compounds include paperboard materials and unique shapes to allow for simplified production and use of the dispensers in various environments.

Abstract: The present invention discloses a spray gun, which comprises a gun body; a liquid container surface disposed below the gun body; a hollow connecting pipe disposed between the gun body and the liquid container. The liquid container is in communication with the interior of the gun body through the hollow connecting pipe; the liquid container has a liquid feeding hole on the top; the head portion of the gun body is located above the top of the liquid container and tilted downwardly away from the top of the liquid container. In the present invention, there is a relatively large space above the liquid feeding opening, providing an efficient space for a smooth liquid feeding operation. Liquid feeding can be performed inside the liquid container without replacing the liquid container and the liquid is ensured not to be split during the operation.

Abstract: A fire extinguishing system including a fluid source, at least one sprinkler (2), and distribution pipes (3). The distribution pipes (3) are formed at least partially as soft-steel metal pipe having a friction loss defined according to the Hazen-Williams formula (1), with P=6.05·105·L·Q1.85·C(?1.85)·d(?4.87), in which P=pressure drop in the pipeline, in bar, Q=flow rate through the pipeline, in l/min, d=average inside diameter of the pipe, in mm, C=constant for the type and condition of the pipeline, and L=equivalent length of pipe sections and pipe fittings, in m. The distribution pipes (3) have an anti-corrosion coating on the inside in order to ensure a value for C in a range of 125 to 150 during commissioning of the fire extinguishing system.

Abstract: A shower assembly includes a panel and a stopper movable between a first position and a second position. The panel includes a first region having a plurality of first openings passing through the panel and a second region having a plurality of second openings passing through the panel. When the stopper is in the first position, water provided to the shower assembly is permitted to pass through the plurality of first openings but is prevented from passing through the plurality of second openings. When the stopper is in the second position, water provided to the shower assembly is permitted to pass through the plurality of second openings.

Abstract: A sanitary coupling (1) is provided that connects an inflow-side and an outflow-side line section to each other. A sanitary insert element (5) is provided that has an insert housing (4) and is insertable via an end-side insert opening into a housing receptacle (7) of a first line section (2). The housing interior (6) of the insert housing (4) communicates with the ambient air, in that an annular zone (10) is provided between the housing outer circumference of the insert housing (4) and the inner circumference of the housing receptacle (7), and in a partial region of said annular zone (10), at least one air duct (12) which is effective between housing interior (6) and housing outer circumference is provided.