Whirl nozzle for atomizing a liquid

Claim 1

A whirl nozzle for atomizing a liquid comprising: a whirl chamber rising above a whirl chamber bottom and tapering towards a nozzle outlet orifice opposite said whirl chamber bottom; an external component comprising said nozzle outlet orifice and an adjoining recess extending along a central axis and exhibiting a larger cross-section as it progresses further, said recess having wall surfaces forming the lateral area of a conical frustum which is coaxial with said central axis, a frustoconical internal component insertable into said recess in a positively connected manner and having said whirl chamber bottom extending perpendicularly to said central axis so that said whirl chamber bottom and said wall surfaces of said recess lying between aid whirl chamber bottom and said nozzle outlet orifice form a whirl chamber wall delimiting said whirl chamber, said wall surfaces of said recess forming a conical seating surface for said frustoconical internal component, said conical seating surface having a smaller apex angle than a section of said whirl chamber wall adjoining said nozzle outlet orifice, at least one whirl channel laterally offset in relation to said central axis of said whirl chamber and opening into said whirl chamber, a whirl parameter of >1, a displacement element rising above said whirl chamber bottom to prevent formation of an air core in a region of said whirl chamber near said bottom, said displacement element being arranged concentrically with said central axis, said displacement element comprising a section near said bottom having an external diameter corresponding to at least one diameter of said nozzle outlet orifice.