SHORT-JET NOZZLE FOR SPRINKLER MACHINES Russian patent published in 2021 - IPC B05B1/18 B05B1/04 

FIELD: agricultural engineering.

SUBSTANCE: invention relates to a short-jet nozzle for sprinkler machines. The expected result is achieved using the nozzle of a short-jet sprinkler machine, which contains a body including a lower part with an external thread for screwing it into the pipe of the water supply belt of the sprinkler machine, a longitudinal passage channel with a diameter of d₁=4-8 mm and a length of l₁=(3-4)⋅d₁, and the upper part with a deflector made as part of the body. In this case, the body is made in the form of a polyhedron, and the deflector is made in the form of a curved surface with a radius R₁=10⋅d₁, width b₂=(3-5)⋅d₁ and is located at an angle α=40-60° relative to a flat platform. In this case, the body and the deflector are made by casting a single part, at the end of the longitudinal passage channel there is an internal thread, into which a replaceable nozzle head is screwed. Moreover, the difference in their diameters is determined by the ratio 7/12. On the deflector there is a vertical divider of the flow part, made in the form of a wedge, the sharp part of which is directed towards the flow and has an angle of 15-17°, the angle between the sides of the wedge and the plane of the deflector is 90°, the heights of the sides of the wedge are equal and form a surface parallel to the longitudinal passage channel, and its height corresponds to the center of the circumference of the longitudinal passage channel. In this case, the surface parallel to the longitudinal passage channel, at the point of abutment to the deflector, has a groove of the vertical divider of the part of the flow with a radius R₂=R₁/4 at a distance from the abutment to the deflector l₂=0,9R₂. Moreover, three through holes of the rarefaction zone with a diameter of d₂=d₁/3 are made at the base of the groove, rectangular cutouts are made along the perimeter of the deflector at the place of the flow exit.

EFFECT: increase in the manufacturability of the product, as well as an increase in the uniformity of the spray, the flight range of raindrops and the area of capture by rain.

1 cl, 2 dwg