Apparatus for wetting a glass pane
In an apparatus for wetting a glass pane, in particular a glass pane of a motor vehicle, a spherical body ( 15 ) which supports a nozzle body ( 20 ) is inserted into an accommodation space ( 10 ) which is formed in a bearing head ( 9 ) of an insert body ( 1 ). The accommodation space ( 10 ) exhibits the spherical body ( 15 ) together with resistance projections ( 12 ) which fix an annular shoulder and also serve to fluidically stabilize a liquid fluid, which flows into a flow expansion space as a subregion of the accommodation space ( 10 ), in the form of, for example, wash water. An oscillating fan-like stream can be reliably generated as a result.
1. An apparatus for wetting a window pane of a motor vehicle, comprising:
an insert body including a bearing head, said insert body connectable to at least one fluid line;
a spherical body insertable in said bearing head, said spherical body rotatably and pivotably held in said bearing head in spaced relation to a back wall of said bearing head to define a flow expansion chamber, said spherical body including a nozzle arrangement comprising:
a nozzle receiving space extending from a front face of said spherical body transversely through said spherical body and opening into said flow expansion chamber at a back face of said spherical body disposed opposite said front face;
a nozzle body including an antechamber and a jet-forming chamber connected to said antechamber, said jet-forming chamber subdivided into a central channel and two lateral arms disposed one on each side of said central channel to generate an oscillating fan jet;
an annular shoulder extending around an inner periphery of said bearing head and disposed between an open window opening of said bearing head and said back wall of said bearing head, with a radial spacing present between said bearing head and said spherical body on a side of said annular shoulder facing said back wall;
a plurality of resistance projections disposed in said flow expansion chamber of said bearing head, said resistance projections confronting said annular shoulder on a side facing toward said back wall, said resistance projections bearing against said spherical body.
2. The apparatus of claim 1 , wherein said resistance projections are elongate bodies that extend in a longitudinal direction from the back face of said spherical body toward said back wall.
3. The apparatus of claim 1 , wherein said nozzle body is oriented at more than about 45 degrees to a longitudinal direction of a fluid inlet space opening into said flow expansion chamber.
4. The apparatus of claim 3 , wherein said inlet opening of said nozzle body is offset from a communication opening of said fluid inlet space.