A water nozzle for fire extinguishing comprising the combination of a body member, having a substantially cylindrical axial interior fluid passage having an inlet portion disposed rearwardly and an outlet part forwardly facing an annular throat member, arranged coaxially with the geometric axis of said passage of the inner fluid of the body member, having an external part applied to slide for axial movement with the interior of said outlet part of said inner fluid passage of the body member, and it extends forwardly therefrom, further comprising an interior surface having a substantially frustoconical discharge portion, extending forward, radially flared outwardly and forwardly from a substantially cylindrical rearward extending portion, the portions of which form a set an internal fluid passage communicating with said inner fluid passage of the body member, thereby providing a continuous fluid passage through said body member and said throat member, an inner deflector assembly, coaxially arranged with the axis of said body member and said throat member, and extending axially in said continuous fluid passage of said members, further comprising a deflecting head disposed coaxially within said discharge portion of the inner surface of said annular throat member, said deflecting head having a diameter greater than that of the cylindrical part on the inner surface of said throat member and smaller than that of said discharge part, said head being disposed therewith in an overlapping relationship extending forwardly with respect to said cylindrical part, to define an annular outlet of flow discharge between said head and said frustoconical discharge part of the interior surface of said an annular groove, an outer annular flow pattern adjustment sleeve, coaxially arranged with the geometrical axis of said body member and said throat member extending axially about the outer surface of said annular throat member and at least a part of the external surface of said body member and also axially extending in application of contact with said outer surface, said sleeve member further comprising internal means arranged for application to complementary means provided in said outer surface portion of said member of body, with which said sleeve member can be displaced axially forward or rearwardly relative to said body member and said throat member further extending said inner surface of said sleeve forwardly beyond said discharge part of said member of throat when it is in its axial position more than laid out in relation to said body member and said throat member, said sleeve further comprising internal means for application to complementary means provided on the outer surface of said throat member, whereby the further backward movement of said sleeve member with relation to said body member does not produce any additional movement of said throat member relative to said sleeve, said sleeve member further comprising a current forming surface that is flared forward and extends angularly and radially, said axial movement of said said sleeve, in cooperation with said annular flow discharge outlet, for selectively shaping the fluid discharge pattern from said continuous fluid passage, said form varying progressively from a straight stream at the most advanced position of said sleeve to a current with an acute included angle in int positions ermedias of said sleeve, at a current with an acute included angle at its most backward position, the additional axial movement rearwardly of said sleeve producing the backward movement of said throat member relative to said body member and said deflecting head, thereby enlarging the opening between said throat and said deflecting head, and a substantially circular turbine member disposed coaxially with the axis of said body member and said throat member, which is further arranged for rotation about said axis. In the most advanced outer part of said model adjustment sleeve, said turbine member comprising multiple blades in the manner of a turbine, the faces of which form an acute angle with the emitted stream of fluid, whereby said turbine member is rotated by the current to deliver the fluid stream emitted from said discharge part of the a continuous fluid passage when said sleeve is positioned to form an acute or obtuse included angle of current discharge. (Machine-translation by Google Translate, not legally binding)