Patent ID: 7793864
Filing Date: 2010-09-14
Classification: B05B

Abstract:
1. A device for spraying a liquid of the type comprising: a liquid flow conduit, delimiting a liquid intake opening and a liquid discharge opening, the liquid discharge opening defining an axis of rotation, a rotating nozzle mounted so as to rotate about the axis of rotation on the liquid discharge opening of the flow conduit, the rotating nozzle defining at least one opening for spraying liquid positioned along a spray axis, which forms a non-zero angle with the axis of rotation, a central conduit, at least one tangential conduit, and a wall for distributing the liquid, the wall extending transversely in the flow conduit over the entire cross-section of flow of the flow conduit so as to collect all of the liquid entering the flow conduit, the wall for distributing the liquid being penetrated: by the central conduit to generate a central jet in the axis of rotation, and by the at least one tangential conduit to generate at least one tangential jet in a drive axis which does not intersect the axis of rotation, and a drive wall for driving the nozzle which extends opposite the wall for distributing the liquid, the drive wall being penetrated by a plurality of receiving conduits for receiving the or each tangential jet in order to set the nozzle into rotation, wherein the drive wall is rotationally engaged with the nozzle, the central conduit leads to the nozzle to generate the central jet inside the nozzle, the plurality of receiving conduits are positioned parallel to the axis of rotation and are distributed uniformly in a circle around said axis, and two circular ribs are provided on the drive wall, in the direction of the wall for distributing the liquid, the receiving conduits being provided between the two circular ribs.