Abstract: A double-swirl spraying nozzle has two swirl chambers which are open toward opposite sides and are in each case arranged on respective sides of a longitudinal center plane extending through the inflow duct and are preferably designed mirror-symmetrically with respect to the center axis of the inflow duct. This design makes it possible for the medium to enter without any cross-sectional constrictions into the two swirl chambers and to exit with a different swirl in opposite directions.

Abstract: A nozzle for spraying surfaces is equipped with a piston rod centrally arranged in a feeding duct. The piston rod has an impact plate which is held by a spring in a position aligned with the surface to be sprayed. As a result of liquid pressure, the impact plate arrives in a second end position at a distance from the surface to be sprayed in which. As a result of a ring gap on an input side around the piston rod, the impact plate becomes a deflecting part for the spraying liquid exiting in a ring shape, which, in a circular spraying cone directed at a flat angle with respect to the surface to be sprayed, is then emitted onto the surface to be sprayed.

Abstract: A two-medium spraying nozzle is provided with a mixing chamber arranged in a housing and with one connection duct respectively leading into this mixing chamber for the feeding of a gaseous and of a liquid medium. A mouthpiece is connected behind the mixing chamber, in which mouthpiece a rotationally symmetrical central outlet opening is provided. In the bore of the mouthpiece, a swirl insert is arranged, and the outlet opening has a diameter which corresponds to no more than half the diameter of the bore of the mouthpiece. Such a two-medium spraying nozzle is unsusceptible to clogging and is particularly suitable for atomizing low-viscosity fluids for the cooling of continuous-casting systems for the production of steel.

Abstract: A scrubbing apparatus for separating gaseous or particulate contents, especially from flue gas, using a plurality of spin spray nozzles arranged such that adjacent spray nozzles have a different spin. Double spin spray nozzles can be used that produce oppositely aimed spray jets of different spin.

Abstract: A flat-jet nozzle for atomizing liquids into comparatively large drops and comprising a nozzle housing with an axial feed passing through it with a multiple stepped diameter, this feed being provided at its end with a nozzle discharge slit. Moreover an inset with a central throttling bore is mounted in the liquid feed between the liquid intake and the discharge slit. A cylindrical central zone of a larger diameter than the discharge slit is present in the liquid feed in the nozzle housing. The inset is provided with a deflector through which the liquid jet issuing from the throttling bore into the central zone is forced, preferably bilaterally, toward the large axis of the nozzle discharge slit.

Abstract: A binary atomizing flat-jet nozzle with rectangle characteristic comprises a mixing head forming a mixing chamber with two mutually orthogonal connectors for a gaseous and a liquid medium, further a preferably tubular connector connecting to those connectors and a snout forming the slitted nozzle discharge. A metering inset with a cylindrical blind bore is mounted in the second connector supplying the liquid, the blind bore issuing inside the mixing chamber bilaterally into cross-bores. The snout comprises an offset bore with arched bottom. A baffle with a sharp-edged central transmission aperture rests on the bore offset and comprises an inside diameter less than the diameter of the offset snout bore. A nozzle with the above features is characterized by its simple design, easy manufacture and very uniform liquid distribution (so-called rectangle characteristic).

Abstract: A nozzle for atomizing liquid media, in particular a fan-jet nozzle, comprising a nozzle housing determining by its external dimensions and its fitting means the particular nozzle type, and a nozzle internal structure enclosed by the nozzle housing in turn determining the nozzle type functionally, both the nozzle housing and the nozzle inner structure being made of the same material. The nozzle housing on one hand and on the other the nozzle inner structure (nozzle inset) are separate integral parts, and the nozzle inset is force-fitted in undetachable manner into the nozzle housing. Such separate manufacture of the nozzle housing on one hand and on the other the nozzle inset determining the nozzle inner geometry (functional geometry) allows improving applicability and storage costs while simultaneously lowering the manufacturing and storage costs of said nozzle.

Abstract: A two-material atomizing nozzle to produce a solid cone jet with a jet angle larger than 45.degree. comprises a nozzle unit with a first duct coaxial with the nozzle discharge and receiving a gaseous medium (for instance air) and a liquid medium (for instance water), a second duct orthogonal to the first duct and issuing into it serving to supply the liquid medium. To supply the gaseous medium, the nozzle unit comprises a third duct issuing into the first duct at the level of the second duct and being orthogonal or essentially orthogonal to both. A recoil bottom is provided for the premixed two-material mixture in the first duct and comprises communication apertures to an annular duct coaxial with and preceding the nozzle discharge into which it merges. The nozzle discharge also is in the shape of an annular duct, however its external boundary is flaring.

Abstract: A cylindrical inset forming a mixing chamber in a binary atomizing nozzle is mounted in a housing ahead of the nozzle discharge and is provided with radial boreholes. The liquid to be atomized, for instance water, and the atomizing gas, for instance air, are fed to the cylindrical inset, with the liquid arriving axially and the gas passing radially from an annular spacing surrounding the inset within the nozzle housing through the radial boreholes into the inset. The radial boreholes are located in several consecutive transverse plans when viewed in the direction of flow and are arrayed in mutually offset manner in the circumferential direction of the cylindrical inset.

Abstract: A multiple-nozzle head to be exchangeably mounted to jet tubes, in particular of spray cleaning apparatus, comprises a cavity into which issues at the rear a feed aperture opposite to which are mounted on the front end side of the cavity several discharge apertures connected to several preferably different nozzles, at least one freely moving valve sealing element being located in said cavity and by gravity can be moved in front of one of the discharge apertures, each discharge aperture receiving one valve seat, one support ring holding the valve seat, and connected thereto in the direction of flow one jet-aligner which in cross-section is preferably cross-shaped and which joins the nozzle.

Abstract: A binary atomizing nozzle includes a housing having a liquid insert and a gas insert. The liquid insert has an interior chamber and a liquid inlet and a liquid discharge communicate with the chamber. A spin insert is positioned in the chamber so that liquid flowing from the chamber is given a rotational spin and exits the liquid discharge as a hollow cone. The spin insert is threadedly engaged with the wall of the chamber so that the liquid discharge constantly wets the wall portion of the flaring discharge. The liquid insert has an outer portion spaced from the gas insert and provides an axially extending annular chamber having a gas discharge. The liquid discharge is axially spaced a preselected distance from the gas discharge so that gas exiting the gas discharge flows along the outer portion of the liquid insert according to the Coanda effect and thereby atomizes the liquid exiting the liquid discharge.

Abstract: An ultrasonic liquid atomizer includes a piezoelectric transducer element mechanically coupled to an amplitude transformer and further comprises an atomizing disk mounted at the free end of the amplitude transformer. The atomizing disk and the amplitude transformer are so mutually matched that the vibration system of atomizing disk and amplitude transformer evinces the same resonant frequency as the transducer element, preferably about 60 kHz. Furthermore, the cross-sectional transitions between the transducer element and the amplitude transformer on one hand and between the amplitude transformer and the atomizing disk on the other are designed to be low in notch-stresses. An ultrasonic liquid atomizer so designed evinces both good properties of vibrations and furthermore advantageous long service lives. It makes possible a high specific flow rate and avoids cavitation and therefore spatters.

Abstract: A dual-material atomizing nozzle comprises a housing (10) with a gas intake (13), a liquid intake (14) and with a mixing chamber (11) for the gaseous and liquid components; a rod-like insert (16) flaring into a saucer-shape opposite the nozzle exit extends through the mixing chamber (11) along its longitudinal axis (15); the end of the housing (10) which is at the nozzle exit side is thus covered while forming an approximately radial, annular-gap shaped nozzle exit slot (23).At least one convergent/divergent tube-path (28, 29; 25, 24) based on the Laval principle is provided within the mixing chamber (11) no farther than the nozzle exit (12). Thereby, and especially when a second convergent/divergent tube path (25, 24) is present behind the liquid intake (14), first the gas and also the mixture of gas and liquid will be accelerated within the nozzle housing (10) to supersonic speed.

Abstract: A solid-cone jet nozzle for spraying liquids has a cylindrical turbulence chamber, a liquid feed bore that tangentially enters the chamber, a flaring discharge opening that forms an axial extension of the chamber, and recesses and elevations made in the bottom of the chamber. The liquid exits the discharge opening in a direction which is perpendicular to the liquid feed bore. The recesses and elevations control the liquid flow.

Abstract: The invention relates to an apparatus for spraying a coolant on steel slabs, comprising spraying nozzles preceded by a mixing chamber with separate feed lines for the propellant and the coolant, the nozzle discharges being designed in such a manner that the mixture of propellant and coolant impinges in the form of wide fans, at an acute angle and in opposite directions on the slab surface, in that the nozzle discharges start from a common nozzle housing into which issues the mixing chamber, the coolant connector to the mixing chamber consisting of an exchangeable inset tube projecting into the mixing chamber, in particular as regards slab-format castings obtained from a continuous casting mold, where the particular nozzles located in the gap between two adjoining guide rollers for the cast slab are directed parallel to the axes of the guide rollers and the nozzle housing is mounted between the plane of the guide roller axes and the slab surface.

Abstract: A device for spraying a mixture of coolant and propellant onto steel plate emerging from a continuous casting mold through guide rolls comprising a mixing chamber and means separately feeding coolant and propellant thereto, a nozzle housing having at least two nozzle outlets offset in side by side and oppositely directed relationship and adapted to discharge the coolant/propellant mixture in wide dispersion and at an acute angle onto the steel plate and feed means connecting the mixing chamber with the nozzle housing and including a replaceable insert pipe extending into the mixing chamber.