Lechler Gmbh & Co. Kg

Werner Raissle

Sepp Mezger

Wolfgang Nieuwkamp

Dieter Kroger

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. Such a two-material atomizing nozzle is characterized by a large jet angle, by uniform liquid distribution, by large flow cross-sections and by wide freedom from clogging.

Two-material atomizing nozzle to produce a solid-cone jet

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.

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Metzingen, Germany

Werner Raissle