Patent ID: 8162234
Filing Date: 2012-04-24
Classification: B05B,Y10T

Abstract:
1. A nozzle arrangement for generating a water jet, the nozzle arrangement comprising: a nozzle plate having a nozzle opening; a nozzle sleeve arranged on the nozzle plate and surrounding at least partially the nozzle opening; wherein the nozzle sleeve has an inner sleeve wall surface that defines a sleeve interior and that directly surrounds a water jet exiting from the nozzle opening at a safety spacing, which safety spacing prevents an unwanted contact of the inner sleeve wall surface with the water jet passing through the sleeve interior in an axial direction of the nozzle sleeve; an air supply comprising an air supply passage connecting the sleeve interior to an air reservoir, wherein the air supply passage has an air supply opening provided in the inner sleeve wall surface and wherein the air supply passage is connected by the air supply opening to the sleeve interior; wherein the air supply opening extends axially in the inner sleeve wall surface so as to begin at a spacing relative to the nozzle plate and end at an axial end of the nozzle sleeve located axially opposite the nozzle plate, wherein said spacing of the air supply opening relative to the nozzle plate is smaller than or identical to a spacing of the nozzle opening to the inner sleeve wall surface.