Abstract: A water spray gun for control of an outflow of water and adjustment of the amount of the outflow is revealed. The water spray gun includes a handle portion, a pipe portion connected to the handle portion and used for spraying water, and a control device arranged at the position where the pipe portion meets the handle portion. The control device comprises a press part and a rotary control member. The amount of the water outflow is controlled by the rotary control member. The amount of the outflow sprayed out from the pipe portion at respective stages is continuously controlled and regulated by the control device.

Abstract: A water spray gun for control of an outflow of water and adjustment of the amount of the outflow is revealed. The water spray gun includes a handle portion, a pipe portion connected to the handle portion and used for spraying water, and a control device arranged at the position where the pipe portion meets the handle portion. The control device comprises a press part and a rotary control member. The amount of the water outflow is controlled by the rotary control member. The amount of the outflow sprayed out from the pipe portion at respective stages is continuously controlled and regulated by the control device.

Abstract: An injector includes an injector body having an upper portion defining a top surface. An injector core is received through the upper portion. The injector core has an interfacing surface that is disposed adjacent and raised with respect to the top surface. A cover member is disposed on the upper portion of the injector body. The cover member has a top wall for receiving at least a portion of the injector core, a side wall extending from at least a portion of the top wall, and a lip that is adapted to be attached to the other of the side wall or the injector body through a snap-fit connection. Upon attachment of the lip to the other of the side wall or the injector body, the top wall of the cover member presses on the interfacing surface of the injector core to restrict an axial movement of the injector core relative to the injector body along the longitudinal axis.

Abstract: A spray generator (10) including: a membrane (40) having a perforate portion through which, in use, a fluid is caused to flow when the membrane (40) is vibrated; an electronically-driven or a piezoelectrically driven actuator for vibrating the membrane (40); a chamber (18) for storing fluid for supply to a surface of the membrane (40); and a sealing element (13) located in and movable within the chamber (18) between a first position in which fluid flow from the chamber (18) through the membrane (40) is prevented and a second position in which fluid flow from the chamber (18) through the membrane (40) is allowed.

Abstract: A flexible and restorable container main body for housing a medicinal solution. A stopper member is fixed in an inside of a medicinal solution passage that communicates with the container main body for discharging the medicinal solution when the container main body is pressed and deformed. A pressure valve is arranged in the medicinal solution passage at a downstream side in the medicinal solution discharge direction further than the stopper member and is formed with an opening having a circular cross section which contacts a tip portion of the stopper member. A biasing member is provided at a downstream side for biasing the pressure valve in a direction opposite to the medicinal solution discharge direction by abutting against a peripheral portion of the opening of the pressure valve.

Abstract: A direct injection injector for an engine includes a body forming the outer structure and having a space therein, a needle inserted to slide linearly in the body and having a hole therein forming a fuel channel, and a cylinder nozzle fitted on needle to communicate with hole and having a nozzle hole for injecting fuel, such that it is possible to prevent caulking in which the nozzle of the injector is clogged with soot while injecting fuel at relatively low pressure, change the spray type of the injected engine in various shapes, and sufficiently decrease the size of droplet of the fuel.

Abstract: A garden sprayer includes: comprises a main body, a spray head, a control valve set, a pressing handle and a fastening device. The fastening device is pivoted on the main body adjacent to the pressing handle. The fastening device has at least two brackets and a pressing rod connecting the two brackets. The pressing rod of the fastening device pushes against the third locking edge of the pressing handle to hold down the pressing handle for a constant water flow without the pressing handle needing to be pressed by the user. When the pressing handle is held down, the cover of the spray head can be rotated to adjust a gap between the spraying aperture of the cover and the head portion to adjust the water flow rate.

Abstract: The invention relates to an actuator for a dispenser device for spraying contents of a receptacle that is pressurized or of a receptacle that has a pump, the actuator comprising a channel connectable to a receptacle outlet on one side of the actuator for receiving the pressurized contents of the receptacle, said channel having an orifice for spraying the contents on another side of the actuator, wherein an inlet connects the channel with a volume chamber, wherein the orifice has a valve for opening and closing the orifice, the valve biased by biasing means in the closed position, wherein the inlet has inlet reduction means for reducing the size of the inlet to the volume chamber. The invention is characterized in that the inlet reduction means comprises a flexible element.

Abstract: A water outlet for a low pressure sanitary outlet fitting has a perforated structure which is air-permeable counter to the water outlet direction and, in the unpressurized state, holds water in the outlet direction, and has a plurality of throughflow holes. At least one bypass is provided, which bypasses the perforated structure and has an opening cross section which is larger than the throughflow holes. A bypass valve is movable from a closed position into an open position counter to a resetting force as a consequence of an increase in pressure on the inflow side. If a hot water tank connected upstream of the water outlet fitting increasingly contracts as the heated water therein cools, air can nevertheless be sucked in via the perforated structure and the pressure can be equalized. If excessive pressures builds up with the heating of the water in the hot water tank, the bypass valve moves from a closed position into an open position counter to a resetting force.

Abstract: A reagent injector with a cartridge design has a body with a reagent inlet, outlet, and a swirl chamber, which has an exit orifice that may be covered and uncovered by a solid, movable pintle. Reagent flows through the injector when the exit orifice is covered and uncovered to cool the injector. An insulator may be disposed between the injector body and a mounting flange connectable to an exhaust system. A flow path ensures cooling of an electromagnetic actuator. Reagent may bypass an orifice swirl chamber when the pintle blocks the exit orifice. Fluid may flow between an outside diameter of a pole piece and an inside diameter of an electromagnetic actuator, through an orifice chamber and return through a central bore housing a solid pintle, around which fluid may flow. Different inner injector body passages may direct fluid into an orifice distribution chamber and out to the solid pintle.

Abstract: A sprayer includes a discharge valve assembly and includes an integrated poppet valve, spring and volume reducer. The spring includes more than omega-shaped form, each with relatively flat sides. The spring can have sides with portions sufficiently wide to substantially extend across the valve chamber to provide stability to the spring and prevent buckling. The flat sided omega-form construct is relatively easy to manufacture via molding and the ends of such construction provide suitable locations for integrated molding with the valve and the volume reducer.

Abstract: Accordingly, the invention provides a spray valve comprising: (a) an upper valve body including a hydraulic chamber for receiving an incompressible hydraulic fluid through a piston port and a piston slidable within said hydraulic chamber; (b) a lower valve body including a fluid conduit for receiving fluid into the spray valve, a lower valve seating surface, an annular fluid chamber around the lower valve seating surface and a fluid outlet; and (c) a seating member between the upper valve body and lower valve body including: (i) an upper seat for the piston within the hydraulic chamber of the upper valve body; (ii) a diaphragm of resilient material extending between the upper valve body and lower valve body; and (iii) a valve seat for bearing against the lower valve seating surface and closing the fluid conduit when pressurised incompressible hydraulic fluid is received through the piston port and displacing the piston within the hydraulic chamber.

Abstract: A coating machine 3 serving as a rotary atomizer comprises a hollow unrotary paint nozzle shaft 5 provided in the center of a motor shaft 10 serving as its rotary shaft. The paint nozzle shaft 5 is provided at a tip thereof with a gun-spray paint nozzle 5g and a gun-spray air nozzle 5f on the outside of the gun-spray paint nozzle 5g in the diametrical direction, and a needle shaft 21 is disposed in a paint passage 5b in the paint nozzle shaft 5 so as to serve as a valve mechanism for selectively supplying paint to either a bell cup 4 or the gun-spray paint nozzle 5g.

Abstract: A device (10) for cleaning the inside of a container includes a base (11) carrying a tube (12). A hose (50) is received within the base (11) and is connected at one end to the bottom of the tube (12) and at the other end to a source of water via a quick disconnect assembly (60). A spray head (21) houses a plunger (30) which has a base (31) and a nose (32). A spring (37) urges the nose (32) of the plunger (30) out through an aperture (40) in the spray head (21). A flat washer seal (42) is positioned with a majority of its surface on a shelf (41) formed in the spray head (21). Ribs (43) on the shelf (41) engage the seal (42) on one side, and a rim (44) on the base (31) engages the other side of the seal (42). The quick disconnect assembly (60) includes a valve (66) which is maintained closed by a spring (67) so that when the hose (50) is disconnected from the source of water, or the water supply pressure is lost, backflow is prevented.

Abstract: A cleaning device for a paint brush comprises a hollow nozzle attached to a source of pressurized cleaning solution such as water, solvent, liquefied hot soap or alike. The distal tip of the nozzle is equipped with a poppet valve such that the body of the valve protrudes from the distal tip. The proximal section of the nozzle is adapted to be attached to a source of cleaning solution, that in the most basic configuration being a common tap water valve. When the water valve is opened, the brush is moved towards the nozzle. Upon engaging with the heel or bristles of the brush, the poppet valve moves inwards and opens the flow of water towards the center of the brush allowing washing out any remaining wet and dissolved paint. In another embodiment of the invention, the cleaning device includes a hollow handle attached to a source of pressurized cleaning solution and equipped with one or more nozzles each having a poppet valve.

Abstract: The present invention relates to a fire hose lance comprising a body (1) including a pressure control device comprising a valve (44) partly closing up an axial drill hole (320) of a piston (32) mounted in the body (1) of the lance, characterized in that valve (44) is fixedly mounted on the body (1), piston (32) is slidably mounted in the body (1), wherein movement of the piston (32) is caused, on the one hand, by the force resulting from the fluid's total pressure exerted on the surface (D1) of the piston located opposite valve (44) and on the other hand, by the force exerted by restoring means (31) tending to neutralize the resulting force from the fluid pressure.

Abstract: A nozzle for delivering vaporized liquid material has a cylindrical housing with a central, cylindrical cavity having a fluid inlet and a fluid outlet. The nozzle also has a plunger inserted into the fluid outlet of the housing so that the plunger and the housing form a fluid path. The plunger is moveable between a first position and a second position. A plunger stop is attached to the housing at the fluid inlet. A spring retainer is attached to the plunger. At least one spring is disposed between the housing and spring retainer to urge the plunger towards the first position. A method includes the steps of biasing a plunger moveable relative to a housing, with a fluid passage defined by the housing and the plunger, towards a first position; and providing fluid pressure to the fluid passage to urge the plunger away from the first position.

Abstract: An apparatus (100) for selectively discharging a stream of liquid has a body (102) adapted for connection to a source of liquid under pressure, a throttle valve assembly (120) for maintaining a constant output flow throughout changes in supply pressure, a smooth bore barrel (140) for providing a deluge stream, a fog tip (160) for providing an aspirated fog spray and a shut off valve (180). The fog spray pattern is variable from a straight stream parallel to the axis of the apparatus to a wide spray at an angle to the axis of the apparatus. The deluge stream and the fog spray are selectable separately or in combination.

Abstract: A nozzle for dispensing a liquid or semi-liquid substance (P) and designed to be mounted on a tank (R) suitable for being put under pressure. The nozzle is of the type comprising a thimble (1) and moving shutter (2) housed inside the thimble. The thimble (1) is provided with a coupling end (11) for coupling to the tank (R) and an ejection orifice (10). The shutter (21) is constituted by a rod (21) carrying a plug (20) at an outer end thereof. The plug (20) cooperates with the ejection orifice (10) to form a delivery valve. The rod (21) also carries a transverse wall (22) at an inner end thereof. The wall (22) leaves a passage for the substance (P) and cooperates with a resilient return means (3) for returning the moving shutter (2) towards a closed position in which the plug (20) is engaged in sealed manner in the ejection orifice (10).

Abstract: The invented spray valve DEFINES two orifices that generate respective spray patterns. Preferably, the spray patterns are each conical in shape and coaxially configured so that the inside spray pattern is enveloped by the outside spray pattern. The spray valve includes two bias units that urge respective orifices to close, in a direction contrary to pressure exerted by a pressurized fluid supplied to the spray valve, that urges the orifices to open. The bias units are independently adjustable to control the amount by which each orifice is urged to close so that the proportional variation of the orifice opening size to a given variation in the fluid flow rate through the orifice, or equivalently, the fluid pressure differential across each orifice, maintains the continuity of the spray patterns over a broad range of fluid flow rates.

Abstract: Disclosed herein is a nozzle assembly comprising a housing including an outer end, an inner end, a central bore extending between the inner and outer ends and including a valve seat adjacent the outer end of the housing, and a spring seat extending transversely to the central bore, a needle member located in the central bore, moveable relative to the housing between an open position and a closed position, and including a valve surface engaged with the valve seat when the needle member is in the closed position, and an inner end, a needle retainer fixed to the needle member in spaced relation to the inner end of the housing and so as to engage the inner end of the housing when the needle member is in the open position, a spring retainer fixed to the inner end of the needle member, and a spring normally biasing the needle member to the closed position and including a first end bearing against the spring seat of the housing, and a second end bearing against the spring retainer.

Abstract: A nozzle for supplying lubricants to conveyors comprises a plastic housing for a spring loaded valve which can be adjusted to produce either a fan stream or a needle point stream with a minor adjustment of the valve. Contaminating material can be removed from the device by a purge tool which interfits with the valve, and the tool can easily be hand manipulated to lift the valve against the spring loading and effect purging.

Abstract: A nozzle including a tubular nozzle body forming a centrally located liquid flow path, the body having an inlet end and an outlet end. Mounted centrally in the body within the flow path is a pressure-regulating mechanism including an axially located dual-pressure baffle. The baffle is located at the outlet end and forms a nozzle gap with a throat surface of the body. During operation, a spring biases the baffle to close the gap and the liquid pressure on the baffle operates to open the gap. Adjustably mounted on the baffle is a shield which is movable relative to the baffle between a normal pressure position and a low pressure position. In the normal pressure position, the shield forms a gap size appropriate for a normal supply pressure. In the low pressure position, the shield forms a gap having an increased size appropriate for a supply pressure which is substantially less than the normal supply pressure.

Abstract: A fluid ejection nozzle is disclosed which facilitates a wide distribution of fluid therefrom and which permits the fluid flow rate to be easily adjustable. The nozzle is particularly adapted to a heat rejection system useful in a space environment. The nozzle includes a flow distributor positioned within an orifice of the nozzle housing which is comprised of a tongue member and an attached flow control block. Adjustment screws mounted through the nozzle housing permit axial movement of the flow distributor within the housing, thus controlling the flow rate of the fluid even to the extent of total shut-off. The tongue member is shaped to widely disperse the fluid, and includes turbulence generators such as roughening or ridges for facilitating its dispersion.

Abstract: A spray nozzle comprises a hollow body having an inlet, an outlet and a fluid flow passage therebetween. The body contains a pressure-responsive or a pressure responsive and temperature responsive valving element that increases the effective area of the outlet in response to an increase in pressure or an increase in pressure and/or temperature. In a preferred embodiment, the outlet includes a restricted orifice and an unrestricted orifice, and the valving element is movable within the body between a first position in which the restricted orifice is open and the unrestricted orifice is closed, and a second position in which the unrestricted orifice is open. The valving element is biased in the first position by a spring which applies a selectable biasing force that defines a threshold pressure, so that the valving element is moved to the second position by a dynamic pressure of the fluid flowing through the flow passage that is greater than the threshold pressure.

Abstract: The turbine (1) has a control and regulating system with a pump (31), the pressure of which changes proportionally to the second power of the flow delivered by the pump or to the second power of the speed (n.sup.2) of the turbine (1). The hydraulic follow-up piston arrangement with the pilot piston (41) and the control piston (5) for regulating the speed of the turbine, is fed by this only pump (31), which permits a particularly compact and space-saving construction. The turbine can be used as a motor or drive in applications other than the generating of electricity, such as, for example, for rope winches.

Abstract: A hydraulically operated valve with controlled lift, in particular a fuel/gas injection valve for internal combustion engines, has a stop face fixed on the valve stem. For accurate control of the opening of the valve a stop cam is provided, which is drivn mechanically via a friction clutch, and which cooperates with the stop face. By rotating the cam through a predetermined angle the maximum valve lift will be obtained. The cam may be brought into contact with the stop face even in the closed position of the valve.

Abstract: A spray nozzle comprises a hollow body having an inlet, an outlet and a fluid flow passage therebetween. The body contains a pressure-responsive or a pressure responsive and temperature responsive valving element that increases the effective area of the outlet in response to an increase in pressure or an increase in pressure and/or temperature. In a preferred embodiment, the outlet includes a restricted orifice and an unrestricted orifice, and the valving element is movable within the body between a first position in which the restricted orifice is open and the unrestricted orifice is closed, and a second position in which the unrestricted orifice is open. The valving element is biased in the first position by a spring which applies a selectable biasing force that defines a threshold pressure, so that the valving element is moved to the second position by a dynamic pressure of the fluid flowing through the flow passage that is greater than the threshold pressure.

Abstract: A valve arrangement for a liquid dispensing unit includes a discharge nozzle having a central bore, the bore having a central axis, an inner wall, and an edge forming a valve seat; a movable valve element cooperating with the bore to control liquid flow out of the nozzle; the valve element including a valve stem extending along the central axis; a device for reciprocally moving the valve element along the central axis; a valve base mounted at the end of the valve stem for contacting the valve seat to seal closed the nozzle, the valve base including a shear step at the outer circumferential edge thereof, and a seal area adjacent the shear step for contacting the valve seat for shutting off liquid flow when the valve is in a closed position; a plurality of arms projecting from the valve stem for guiding the valve stem with respect to the inner wall of the bore, the arms being spaced from the valve base; and a single fin extending from an outer periphery of the valve base in a direction perpendicular to the axis

Abstract: A duocone spray nozzle having two concentric peripheral orifices which will produce two hollow spray cones, one inside the other. Each orifice size is varied by employing its own spring and each spring acts independently and is compressed under its own pressure drop. The springs are designed so that the inner spring will open the inner orifice at a pressure drop which is lower than the pressure drop occurring at the outer office. Therefore, the inner spray cone occurs before the outer spray cone. When the pressure drop at the inner orifice exceeds a predetermined value, the outer orifice opens and after this occurs there will be two spray cones. A hold structure aids in separating the two spray cones.

Abstract: A nozzle, for use in a gas-operated spraying apparatus such as an airbrush, is disclosed. The nozzle locates concentrically within an air cap in the gas outlet of a spraying apparatus and cooperates with a tapered needle located in an axial passage thereof to seal the outlet of the nozzle. The needle is retractable in the nozzle to dispense a medium such as paint to be sprayed.

Abstract: In a fuel injection nozzle having an outwardly opening poppet valve that controls the delivery of fuel to an engine combustion chamber, a piston increases the difference between the injection pressure required to initiate opening of the poppet valve and the injection pressure required to fully open the poppet valve. The piston effectively limits opening of the poppet valve during light load engine operation, thereby reducing the rate of injection during light load engine operation and thus enhancing the ability of the engine to operate with low noise, hydrocarbon and nitrogen oxide emissions.

Abstract: The invention relates to a nozzle head, especially for use in a de-icing device for aircraft, to emit a liquid in the form of a spray. The nozzle head comprises a supply chamber for the liquid, a nozzle ring member, and a central member which is provided in the latter and is movable by the aid of a set means for adjustment of the spray in the nozzle axis, and which in one end position will close the connection between the nozzle annulus formed by the nozzle ring member, and the central member and the supply chamber. The nozzle head is characterized by the fact that the central member constitutes the nozzle ring member of a concentric inner nozzle with a central pin which is operatively connected with said set means and is connected with the central member by a free play spring, so that the central pin is not displaced until said central member is in its mentioned end position in which position the inner nozzle is at the same time put in liquid flow connection with the supply chamber of the nozzle head.

Abstract: A direct-injection internal combustion engine has a combustion chamber in the form of a body of rotation in the piston head. Means are provided for creating air swirl about the longitudinal axis of the combustion chamber. A fuel-injection nozzle is arranzed to spray fuel on the combustion chamber wall substantially as a film at upper engine speeds and loads, and to mix the fuel directly with the air at idling and lower engine speeds and loads. The nozzle has a nozzle needle longitudinally movable in a nozzle body to open the nozzle for fuel injection. In order to reduce the size of the nozzle, the nozzle needle is arranged to move in a direction outwardly of the nozzle body to open the nozzle and inwardly of the nozzle body to close the nozzle. The nozzle is adapted to open at a slower rate at lower engine speeds and loads and at a faster rate at upper engine speeds and loads.

Abstract: A nozzle is pressure activated to generate a fine droplet, conical spray. The nozzle has an outer tubular body with a fluid inlet opening at one end and a discharge opening at its opposite end. Coaxially disposed within the body is a conduit for carrying fluid from the inlet to the discharge opening. Adjacent the inlet end of the nozzle, the conduit includes an annular flange with fluid seal between the peripheral edge of the flange and the inner wall of the nozzle body. The conduit is axially movable within the tubular body over a predetermined distance. Adjacent the discharge end of the nozzle is a helical opening through the wall of the conduit. The helical opening is spaced for the discharge end of the conduit less than the extent of axial movement of the conduit. A closure plate is disposed at the outer end of the conduit for shutting off flow of fluid through the nozzle.

Abstract: A fuel injection nozzle has a valve member which is axially movable within a bore in a nozzle body. It is resiliently urged into contact with a seating at one end of the bore and carries an extension which projects with clearance through an opening at said one end of the bore. Intermediate the ends of the bore is an enlargement to which fuel under pressure can be supplied and the portions of the bore between the enlargement and the other end of the bore tapers inwardly from the enlargement to allow the extension to partake of sideways movement within the opening to minimize the risk of carbon deposit forming in the opening and on the extension.

Abstract: A fuel injection nozzle for supplying fuel to an internal combustion engine is of the so-called outwardly opening type and has a valve head located in a pocket the wall of which is of right cylindrical form. A circumferential groove is formed in the wall of the pocket and fuel is communicated thereto by a further groove or grooves on the valve head. The valve head forms a first outlet communicating with the circumferential groove and through which on the initial lift of the valve head fuel flows to produce a low penetration fuel spray. As the head is further lifted ports in the valve head are exposed to the groove and these ports communicate with a central outlet in the head. A penetrative jet of fuel issues from the central outlet.

Abstract: A pintle on the tip of the nozzle needle, which is disposed to be fitted through the nozzle hole of the nozzle body opening in a combustion chamber of an engine, has a conical portion. The conical portion extends along substantially the whole length of the nozzle hole when the nozzle needle has its seating portion seated on a valve seating portion of the nozzle body, and has a depth gradually decreasing toward the combustion chamber to define between itself and the nozzle needle an annular gap gradually expanding toward the combustion chamber. A portion of the pintle, which is substantially on a level with an end of the nozzle hole remote from the combustion chamber when the seating portion of the nozzle needle is in its seated position, has a diameter substantially equal to the inner diameter of the above end of the nozzle hole.

Abstract: A constant pressure discharge nozzle having a pressure-responsive baffle head assembly for varying the size of the discharge opening in response to fluid pressure in the nozzle, and having adjustable stop means, controlled from the exterior of the nozzle, for limiting the pressure-responsive opening movement of the baffle head to selected positions intermediate the minimum and maximum pressure-responsive positions, while still permitting pressure-responsive movement of the baffle head between a selected intermediate position and the minimum flow position.

Abstract: In order to improve upon the prior arrangement of a valve within a liquid distributor head for a mixing pre-heater degasifier it is proposed that a valve containing a valve plate, valve shaft, valve spring and spring plate, is arranged within the mixing pre-heater centrally within a deflection screen or baffle and at the same time the valve is surrounded by a protective housing in order to prevent that, in the event of possible rupture of the valve spring any broken pieces thereof will drop into the mixing pre-heater.

Abstract: An automatically regulated constant-pressure fire-fighting nozzle having a pressure-responsive baffle element for adjusting the size of the discharge orifice in response to supply pressure changes. An upstream-directed baffle extension in opposition to the direction of fluid flow for creating a low-pressure zone adjacent said baffle element in response to high supply volume to modulate the effective displacement force acting on the orifice-regulating baffle element. The extension also serving to adjustably restrict the fluid flow passage to said orifice in response to pressure-induced displacement of said baffle element.

Abstract: There is disclosed a fuel injection nozzle of variable orifice design including a check valve to control fluid to the orifice from the fluid pressure supply to the nozzle assembly. The valve is operative together with a piston to control the relationship between the fluid pressure adjacent to the variable orifice and the effective open flow area of said variable orifice in a manner such as to cause a finely atomized fluid spray to be delivered from the orifice over a wide range of fluid flow rates.

Abstract: A spray nozzle having an orifice plate fixedly retained in the front opening of a nozzle body by a readily deformable lip and having an improved valve stem and guide construction whereby assembly and construction of the nozzle is greatly expedited and at reduced costs.

Abstract: A vibratory fuel atomizer in which a small housing is located within the atomizer near the atomizer tip, the housing containing a ball valve for shutting off the flow of fuel and a spring for biasing the ball valve to the closed position.