Abstract: A spray nozzle is disclosed including a valve body with a water inlet and outlet and a helical spray vane at the valve body outlet. A tapered plug carried by the valve stem, corresponding in shape to that of the interior of the helical spray vane, moves with the valve stem to decrease the area of the outlet and thereby reduce the discharge flow rate into the helical spray vane. At the same time, the tapered plug moves into the interior of the helical spray vane, causing a reduction in size of a passage formed between the tapered plug and the interior of the helical spray vane. This reduced passage size serves to maintain the velocity of the fluid as it is directed to the active surface of the helical spray vane, thereby substantially maintaining the size of particles produced by the helical spray vane.

Abstract: A garden hose nozzle is composed of a cylindrical housing, a toothed disk, a shaft member and a fastening bolt. The fastening bolt is used to fasten the tooth disk and the shaft member in the stepped axial hole of the cylindrical housing. The shaft member can be rotated manually such that the interstices of various sizes are formed between a tapered ring edge of the stepped axial hole of the cylindrical housing and the tapered portion of the shaft member for regulating the sprinkling pattern of water.

Abstract: A fan spray nozzle provides a linear spray pattern of very fine droplets suitable for spraying thin invert emulsions containing active agents such as herbicides, pesticides, fungicides, growth regulators and the like, especially using an array of nozzles mounted on a moving vehicle. Each nozzle has a nozzle plug fitted into a nozzle body having an indentation complementary to the plug. A chamber in the body is coupled to the indentation and to an inlet for feeding pressurized liquid into the chamber. One or both of the nozzle plug and the nozzle body have a plurality of narrow grooves (0.001 to 0.015 inch or 25 to 400 microns in width), in a line along an abutment between the nozzle body and the nozzle plug and leading from the chamber to an external wall of the body.

Abstract: A fuel injection device for internal combustion engines, having a high-pressure fuel pump, which pumps fuel from a low-pressure chamber via a feed line into a high-pressure collection chamber that communicates via high-pressure lines with the individual injection valves that protrude into the combustion chamber of the engine to be supplied. In order for this system to make variable injection cross sections at the injection valves possible, these injection valves are embodied as injection valves with an outward-opening valve member, via whose controllable opening stroke motion in the direction of the combustion chamber, a variable injection cross section can be adjusted at the injection valve.

Abstract: A rotating spray nozzle for use in cleaning containers having a spray head on a shaft, an element for passing liquid both to the exterior of the spray head to cause rotation thereof and for the delivery of liquid in annular streams, liquid passing to the spray head through the shaft and having an hydraulic bearing therefor, the liquid after passing from the spray head occupying which would be a void as far as washing is concerned. The spray head is also moveable axially relative to the shaft, a spring holding the spray head away from the bottom of the shaft when there is no pressure passing therethrough, the pressure of the liquid moving the spray head to the bottom of the shaft, the arrangement providing a manner whereby foreign material can be removed from between the spray head and the shaft as, by reducing the pressure, the space between these can be increased, thus permitting ready flushing of the foreign material.

Abstract: An apparatus for applying a liquid medium has an application slot whose width of opening is defined by the mutual spacing of its longitudinal edges, and means for feeding liquid medium to the application slot. The width of opening of the application slot is adjustable between a maximum width and a closed position permitting the medium to be precisely cut off when the application operation is concluded by closing the slot.

Abstract: An air nozzle assembly for use in an associated combustion apparatus which includes a secondary air nozzle apparatus. The air nozzle apparatus may be a part of the windbox of an associated furnace. The apparatus includes a housing which has at least a part thereof disposed surrounding a first axis. The part has respective first second third and fourth cross-sectional areas at first, second, third and fourth axially spaced planes that are perpendicular to and axially spaced along the first axis of the part of the housing. The cross sectional area of each of the first second third and fourth cross-sectional areas each different from each other of the cross sectional areas. The apparatus also includes a diffuser member; apparatus for supporting the diffuser; and apparatus for moving the apparatus for supporting along a second axis, the second axis is parallel to the first axis. In some forms of the invention the diffuser member is a rotationally symmetrical object which may be a truncated conical body.

Abstract: A spray and drip irrigation device connectable to a low volume irrigation tube comprises a lower member connected to the irrigation tube and formed with an exterior thread along a part of its outer surface along which an upper member threadedly moves to selectively cover an outlet orifice in the lower member to control the type of water flow from the device. A brim formed in the upper member cooperates with the outlet orifice in the lower member to enable the device to operate in drip, spray, and squirt modes.

Abstract: The specification discloses an extrusion billet quenching system which directs a continuous circular curtain of water onto a billet to be quenched. The water delivery system is a spray ring defining a continuous opening about its entire circumference. The opening is defined by a pair of plates. Push and pull screws enable the width of the opening to be carefully adjusted. A reciprocating billet pusher assembly includes opposite cantilevered heads for pushing billets through the ring in either of two opposite directions.

Abstract: The specification discloses an extrusion billet quenching system which directs a continuous circular curtain of water onto a billet to be quenched. The water delivery system is a spray ring defining a continuous opening about its entire circumference. The opening is defined by a pair of plates. Push and pull screws enable the width of the opening to be carefully adjusted. A reciprocating billet pusher assembly includes opposite cantilevered heads for pushing billets through the ring in either of two opposite directions.

Abstract: The dosage dispensing device associable with filling machines is provided with at least one lower nozzle which includes a main body, which has a vertical axis, which is hollow and which has an internal diameter which reduces gradually at least proximate to its lower end down to a discharge outlet, and by a stem, which is arranged so as to be coaxially movable inside the main body. The stem defines, at its lower end, a shutter for the discharge outlet, and is provided with longitudinal fins for guiding the stem inside the main body; the shutter is constituted by a solid of revolution which is coaxial to the stem and which has a cross-section which decreases from a median region thereof down to a lower pointed end thereof, and the inner surface of the main body which is proximate to the discharge outlet has a shape which can be sealingly coupled to a lower portion of the shutter.

Abstract: A self-cleaning spray nozzle in which a standard fitting serves as the nozzle body. A unitary valve assembly is inserted partially into the fitting and secured to it. The valve assembly includes a secured valve seat biased by a spring into a spraying head so that the valve seat and spraying head form a seal. The spraying head is designed so that it does not form a complete seal with the valve seat, the gap in the seal defining a metering orifice so that under normal fluid pressures, fluid will spray out of the orifice in a predetermined pattern. When a force sufficient to overcome the spring bias is applied to the spraying head, the spraying head separates from the valve seat breaking the seal and allowing the fluid to flush the outlet. The force can either be applied manually, or caused by an increase in fluid pressure. An optional deflection collar may be snapped onto the nozzle for influencing the direction of the spray.

Abstract: A fuel injection nozzle for a combustion engine not only has a valve for alternately opening and closing the nozzle, but also has a part which undergoes alternating stroke movement, either longitudinally or transversely. The alternating stroke movement changes the opening angle of the nozzle opening. The alternating stroke movement is in a frequency range of approximately 5 to 20 kiloHertz.

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 fluid distributing apparatus provides a fountain-type distributor which effects substantially uniform radial distribution of fluid across a spray pattern. An irregular spaced annular nozzle opening is provided for deflecting the spray pattern into a non-circular pattern, and in a preferred case into a square pattern. Also, an automatic adjustment varies the spacing around the entire nozzle opening to accommodate varying supply pressures. The distributor is particularly suited for use in industrial cooling towers to increase the efficiency of the cooling towers by increasing the uniformity of water distribution across the fill material of the cooling tower.

Abstract: A fluid distributing apparatus provides a fountain-type distributor which effects substantially uniform radial distribution of fluid across a spray pattern. A fixed deflector is provided for deflecting the spray pattern into a non-circular pattern, and in a preferred case into a rectangular pattern. The distributor is particularly suited for use in industrial cooling towers to increase the efficiency of the cooling towers by increasing the uniformity of water distribution across the fill material of the cooling tower.

Abstract: A nozzle assembly includes a sleeve, a nozzle having an interior opening and slidable within the sleeve and a plunger that enters the interior opening of the nozzle. When the nozzle is slid within the sleeve, the plunger coacts with the nozzle to clean any foreign substances present within the nozzle and remove a clog in the nozzle.

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: An adjustable arc sprinkler nozzle comprises a lower nozzle piece which is relatively rigid and an upper nozzle piece which is made of a relatively flexible, compressible material. A plurality of radial channels are provided in the upper nozzle piece for forming radial streams out of water flowing into the lower nozzle piece. A deflector ring having pairs of spaced deflecting fingers can selectively compress the upper nozzle piece by pushing down on it adjacent either side of each channel near the radially outer ends thereof. This pinches off the channel area and simultaneously bends the channels down over the lower nozzle piece to decrease the throw radius while keeping the precipitation rate relatively constant.

Abstract: Fuel injection nozzle for internal combustion engines, in which a pre-injection is effected with directed fuel sprays and then a main injection is effected with an additional fuel umbrella spray. The individual phases are to run in exact timed sequence and the main injection is to be separated from the pre-injection by way of a pressure step. For this purpose, a valve sleeve (34) is placed on a valve needle (18) which opens in the flow direction of the fuel and is provided with a closing head (20), the valve sleeve (34) being pressed, according to the invention, by an additional spring (50) against the closing head (20) with which it controls an annular valve gap for the umbrella spray. The valve sleeve (34) is also provided with lateral spray openings (62) through which the directed sprays exit during the pre-stroke in which the valve sleeve (34) moves with the valve needle (18) under the influence of the additional spring (50).

Abstract: A spraying method wherein the distance between a spray apparatus and an article is measured by a distance measuring means provided on the spray apparatus, and a spraying condition in which a substance is sprayed is varied in accordance with the measured distance. Also disclosed is a spray apparatus which is suitable for carrying out the above-described method. The apparatus has a supply passage for a substance which is to be sprayed, a nozzle for jetting out the spray substance, and a control valve means provided within the supply passage and adapted to control the flow rate of the spray substance flowing out through the nozzle. A distance measuring means is provided integral with the spray apparatus in one unit, the means being adapted to measure the distance between the spray apparatus and an article and output a signal corresponding to the measured distance. The degree of opening of the control valve means is determined on the basis of the signal output from the distance measuring means.

Abstract: A fuel injection nozzle that produces a non-symmetrical conical stream in an eccentrically and obliquely installed fuel injection nozzle for a engine. The fuel injection nozzle body is formed with a conical end in which the center axis of the conical wall face forming the valve seat on the nozzle body is disposed at an angle (a) to the axis of the valve needle, and that a sealing face on the closing head of the valve needle that cooperates with the valve seat on the nozzle body is spherically curved.

Abstract: A spray desuperheater maintaining a desired homogeneous spray pattern throughout the full range of operation, including relatively low rates of flow. Water flows to a spray orifice through a variable-geometry control which constricts at flow rates below the minimum flow required to maintain pressure control across the spray nozzle. This constricted flow increases the velocity of the water tangentially entering a spin chamber leading to the spray nozzle. The increased velocity of water at the lower rates of flow, combined with the spin imparted to the water, maintains the desired homogeneous spray pattern at the lower flow rates. The variable geometry control is fully open at flow rates sufficient to sustain pressure control at the spray nozzle, and a fixed-geometry control adjusts a higher range of flow rates.

Abstract: A beverage dispensing system is provided which utilizes a modified refrigerator/freezer unit, and a tower mounted on top of the refrigerator. Fluid lines run from pressurized bottles inside the refrigerator to dispensing valves mounted on the tower. Artificial ice extends from the freezer unit into the tower. The dispensing system utilizes the refrigerator section of the refrigerator/freezer to chill the beverage lines and reservoirs contained within the refrigerator, and the freezer section to chill the beverage lines extending into the tower.

Abstract: A spraying head for spraying material such as herbicides comprises a rotary distribution member (22) and a body made up of a housing (4) and a cap (6) which is rotatable on the housing (4). The housing (4) has a projection (28) which projects into an aperture (74) in the cap (6) to define an annular gap (78). The housing (4) and the cap (6) also define an annular cavity (72) into which material is introduced in use, the material then flowing to the member (22) through the gap (78). A device utilizing rotation of the cap (6) on the housing (4), is provided for adjusting the flowrate of material to the distribution member (22).

Abstract: An improved water spray fitting for controlling the flow of water from a pressure supply of water such as a hose or the like is provided which allows more convenient use in maintaining a particular spray pattern while in use. The preferred fitting includes a internally threaded, manually rotatable, control ring located within a transverse cut-out part of the body, and a valve member extending longitudinally through the hollow internal of the fitting body and through the control ring and externally threaded so that rotation of the control ring causes longitudinal movement of the valve member. In preferred use, the control ring can be manually adjusted by the fingers of the hand in which the fitting is held to provide convenient, one-handed operation.

Abstract: A powder spray gun for use in spraying particulate powder material of different colors is constructed of a number of individual parts which are quickly and easily disassembled from one another so that each part which comes into contact with particulate powder material can be individually cleaned in changing over from one powder to another. The powder spray gun comprises a mounting block which carries a rearward barrel member and a powder inlet tube, a forward barrel member connected to the rearward barrel member, a nozzle and pattern adjustment sleeve both carried on the forward barrel member and an electrostatic cable assembly received within a barrel liner which extend axially along the length of the spray gun. All but one of the connections between these parts are made by O-rings which frictionally engage facing surfaces of the parts so that they are easily pulled apart, cleaned by a jet of air or the like and then reassembled in preparation for spraying another color of particulate powder material.

Abstract: The invention relates to an electromagnetically actuatable fuel injection valve which is used to supply fuel to a mixture compressing internal combustion engine. The fuel injection valve comprises a valve housing provided with an extension in which a valve seat body is disposed. A magnetic coil is mounted on each of the pole parts and a permanent magnet is disposed between the poles of the pole parts. The valve seat body is connected to a guide via a collet. The guide, collet and valve seat body are penetrated by a valve needle which is connected at its one end to an armature and which, at its other end, ends in a closing end. In the guide is a guide bore which is adapted to radially guide a spherical head portion of the valve needle and which then tapers into an abutment face, against which face the valve needle rests by way of the head when the injection valve is open. To open the valve, the valve needle is moved outwardly, thereby uncovering an ejection opening between a valve seat and the closing head.

Abstract: An electrostatic spray device having a gun barrel formed with a powder delivery passageway connected to a source of particulate powder material, a nozzle mounted at the forward end of the gun barrel which is formed with a discharge opening for emitting coating particles, a deflector carrying an electrode which produces an electrostatic field in the path of the coating particles emitted from the discharge opening and a pattern adjustment sleeve carried by the gun barrel which is radially outwardly spaced from the deflector and discharge opening.

Abstract: An electromagnetically actuatable fuel injection valve, which serves to supply fuel to a mixture-compressing internal combustion engine having externally supplied ignition. The fuel injection valve includes a valve housing with a mouth piece, in which a valve seat body is disposed, included are two magnet coils, two cores and one armature, which has a spherical guide section and is connected to a valve needle. The spherical guide section is slidably supported with its circumference in a guide bore of the valve seat body and in its stroke movement away from the core is limited by a tapered stop opening which adjoins the guide bore. Radially extending grooves are machined into the wall of the stop opening and are coextensive in the wall of the guide bore, so that the area of contact between the spherical guide section and the stop opening is decreased.

Abstract: A variable geometry centrifugal compressor diffuser or radial inflow turbine nozzle comprises a plurality of fixed radially extending pressure surface vane segments disposed in a circumferentially spaced array and a plurality of radially movable vane segments abutting said fixed segments for varying the geometry of said diffuser or nozzle.

Abstract: A spray cap assembly comprising a base unit including a dispensing duct in communication with separate air and material passages, and an insertable push/pull closure mated to fit into the base unit which permits the sealing of the air and material passages from the dispensing duct and from each other. The spray cap assembly by modification to the design of the dispensing duct permits the dispensing of a variety of products having a variety of consistencies as a spray from the squeeze container.

Abstract: A shower head contains a cup-shaped casing with a longitudinally displaceably held core part, for whose displacement an eccentrically-mounted circular disc engages in an opening of the core part. The eccentrically-mounted circular disc contains an eccentrically arranged hole, through which engages a square section of an adjusting member. Within the casing, the adjusting member is mounted in a sleeve in part of the shower head which does not carry water. The adjusting member does not require packings.

Abstract: A water ejecting gun simultaneously produces two kinds of ejecting flows, a straight flow and a spray flow. The gun disposes a rotating or spiral fan element in a water passage for producing the spray flow. The straight flow acts as a carrier for the spray flow. A mechanism for producing the spray and straight flows includes an inner sleeve, an outer sleeve rotatably and axially movable on the inner sleeve, a nozzle element disposed in the inner sleeve which defines a main flow passage and a sub-flow passage and a frusto-conical core element engaging the upstream end of the nozzle element to form a variable gap therebetween. When the gap is open, water flows to the main flow passage. When the gap is closed, a smaller water flow to the main flow passage occurs through radial and axial passages in the core element. The straight and spray water flows exit the gun simultaneously through an ejecting opening.

Abstract: An adjustable conical atomizer comprises a body part having an end or discharge face with a conical recess and a conical plug having a complementarily conically-formed surface which is adjustably positioned in the conical recess. The size of the cavity formed between the plug and the body is varied by changing the relative positions of the plug and the body, for example, by using an indexing bolt which connects the body part and the plug parts. The body or a connection to the body is provided with channels or passages for the passage of two or more fluid streams into the space between the plug and the body part for intimate mixing therein. The fluid stream includes a liquid which is accelerated in this zone between the body and the plug. The plug and the body form an annular discharge therebetween which diverges in an outward direction.

Abstract: A peripheral jet fire fighting fog nozzle having mounted on the discharge end thereof a stream-shaping sleeve provided with a convex end face adapted to form an open outer cone-like spray pattern and a plurality of circumferentially spaced fog teeth extending axially from the convex end face with axially extending convex lateral surfaces on the teeth adapted to spread the spray pattern laterally and fill in the lateral opening or gaps in the outer spray pattern. Rounded axially extending inner end surfaces provided on the fog teeth together with adjacent lateral surfaces of the fog teeth are adapted to form uniform droplets which are uniformly distributed within the interior of the outer conical spray pattern to form a uniform conical spray pattern which has a wide angle of divergence and is free of circumferential gaps.

Abstract: A pistol grip spray gun for the incremental control of sprayed liquids. The gun has a handle, an actuating member movable with respect to the handle in the manner of a trigger, and a barrel with an outlet for delivering a spray of the liquid. The actuating member is movable from a closed position thereof, corresponding to a closed condition of the nozzle, through a range of open positions with differing spray characteristics. A retention system is provided for retaining the actuating member in a selected position in the range of open positions. A release button is employed for releasing the retention system to permit the actuating member to return to or toward its closed position. In this manner, the spray characteristics of the gun can be varied, and retained in any chosen characteristic, by control of the trigger without the necessity of a separate adjustment of the nozzle.

Abstract: A self-cleaning variable width annular slip atomizer is provided. The atomizer has a tubular body, a valve stem coaxially located in the tubular body and valve member that forms an annular slit type nozzle of a variable width with the tubular body. The valve member is continuously rotatable during operation for cleaning the slit nozzle. The valve stem may have a central opening therethrough for introducing gaseous matter into materials atomized.

Abstract: A variable precipitation rate mist emitter (10) is disclosed. The emitter includes an emitter head (14) having an inlet opening (19), an outlet opening (26), a deflector disc (28) spaced from the opening for redirecting the water flowing from the outlet opening, and a projection (42) extending from the deflector disc toward the outlet. The projection has a tapered exterior surface with its smallest dimension adjacent the outlet opening and its largest dimension adjacent the deflector disc. A mechanism (30, 54, 56) for adjusting the position of the projection relative to the outlet opening locates a preselected and variable portion of the projection in the outlet opening whereby the size of the opening and the precipitation rate of the emitter are adjustable.

Abstract: A vehicle for deicing aircraft comprises an undercarriage (1) having a lifting device (4,5,6,7) carrying a closed operation cabin (3). The vehicle includes a spray device for applying spray fluid to the aircraft, and this spray device comprises a pump and a connected spray nozzle. To avoid frequent adjustments of the position of the carriage and to allow spray operations close to the areas to be sprayed, the spray nozzle is supported on a longitudinally adjustable lightweight boom (20) carried by the cabin (3). The cabin (3) is further pivotally supported by a turntable construction (15,16) relative to the carriage (1). The nozzle is also connected to remote control devices in the cabin (3) for pivotal movement of the nozzle about two axes extending perpendicular to each other. The two pivot axes are appropriately intersecting in a point coinciding with the direction of the jet from the nozzle.

Abstract: A control valve assembly for controlling particulate solids feed upward into a fluidized bed reactor, utilizing a purged valve seat mating with a poppet head and valve stem having a vented clearance space. The valve seat surface and a stem clearance space are each purged by a clean externally supplied gas, the solids flair in an elbow-shaped passageway are fluidized by air supplied through booster nozzles, and the valve stem is operated by a pneumatic actuator. A particulate solids material such as coal is transferred by a screw conveyor through a horizontal conduit, and then fed through the elbow-shaped passageway and the poppet valve seat upwardly into the reactor fluidized bed.

Abstract: An actuating mechanism for varying the Venturi gap of a jet dyeing machine allows adjustment of the gap between a zero spacing (for easy centering) and a self-cleaning, fully open position, adjustment being provided without interrupting production. As is conventional, a textile material passing pipe is reciprocal within an outlet pipe, with an end of the textile material passing pipe forming a Venturi with a circumferential lip formed on the interior of the outlet pipe. A cam and follower mechanism is mounted exteriorly of the textile material-passing pipe between it and the outlet pipe, with a cam shaft extending through the outlet pipe wall to an exterior position. Power means, which may be responsive to sensors for sensing fabric flow and liquid flow, effect rotation of the cam shaft to effect reciprocation of the textile material-passing pipe, and thus adjustment of the Venturi gap.

Abstract: A steam generator including a combustion chamber having fuel and air inlets at the upstream end and a water inlet at the downstream end to inject water into the flue gas, a vaporizer in communication with the downstream end of the combustor and a pressure control to vary the size of the discharge opening of the vaporizer and thus control the pressure within the combustor and vaporizer, including; a slideably movable plug attached to and operable by a fluid operated piston.

Abstract: Nozzle for use with a non-aspirated fire-fighting medium capable of a selection of two rates of flow and two modes of spray control.

Abstract: A burner is disclosed for alternatively burning coal dust or oil. An annular housing includes a blower at one end thereof for directing a rotating air stream through the housing. A chamber located downstream from the blower has a plurality of outlet pipes extending downstream therefrom in an annular configuration about an atomizing nozzle and an eddy plate. An adjustable burner head is mounted on the end of each of the outlet pipes, the burner heads being arranged for optimum mixture of coal dust and air, fed from the chamber through the outlet pipes to the burner heads, with the rotating air stream passing about and through a hole in the eddy plate to insure optimum combustion. An oil ignition auxiliary burner having a nozzle between the eddy plate and the outlet end of the chamber serves to ignite the coal dust and air mixture. An atomizing nozzle for feeding atomized oil into the burner is provided as an alternative fuel source.

Abstract: A constant pressure nozzle having a pressure-responsive baffle head movable toward and away from a throat element so as to define a discharge orifice. The throat being movably mounted for retraction by external control means to a debris-flushing position, but means being provided to maintain the throat in a fixed position during normal operation of the nozzle.

Abstract: Slaughtered poultry supported on the apparatus are internally cleaned by a spray head which is moved into the bodies of the birds. The spray head has a peripheral outlet slot defined by and located between a conical member and a truncated conical member which are threadedly interconnected. An axial delivery bore in the truncated conical member discharges directly into the outlet slot.

Abstract: A fuel injection nozzle for supplying fuel to an internal combustion engine includes an outwardly opening valve member having a head which co-operates with a seating formed on a tubular member. The head is lifted from the seating to allow fuel flow to the assciated engine. The tubular member is also slidable within a bore and defines orifices which are exposed beyond the bore to allow fuel flow to the engine before the valve head is lifted from the seating. Improved atomization of the fuel at low pressure is therefore obtained.

Abstract: A choke pin nozzle for diesel engines in which the choke pin is arranged on a nozzle needle. The nozzle needle is axially guided in a fitted bore in a nozzle body and is braced, through a separate spring plate, on a helicoidal compression spring disposed in a spring chamber or cavity of the nozzle. The spring plate is formed as a component of an intermediate piston which is connected on the nozzle side and guided axially with a seal in a portion of the nozzle. An escape or discharge bore is provided in the intermediate nozzle with the bore opening into the spring cavity. The piston is of a smaller diameter than the nozzle needle. The intermediate piston includes a bearing face which is cooperable with an upper sealing surface of the nozzle needle. A guide bore of the intermediate piston is widened in a stroke zone of the bearing face at least to a diameter of the fitted bore in which the nozzle needle is axially guided.

Abstract: The invention provides an aerator device for dispensing liquid in a gas phase by producing an upwardly-directed spray of the liquid from a tank. The device, which is intended to be submerged in a tank, comprises a motor-pump unit in the vicinity of the tank floor and a primary flared tube and a secondary flared tube coaxial therewith. The secondary flared tube is connected to a delivery nozzle by an intermediate duct, and the delivery nozzle is surmounted by an adjustable needle. The buoyancy of the whole assembly is ensured by a set of variably ballasted buoys which pivot at the end of support arms, and by an upper buoy concentric with the nozzle.